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Sagittal sections of toad, rabbit, and monkey brain. Arrows, location of superior colliculi. Note the significant difference among these three species in the relative amount of brain tissue devoted to telencephalon and to colliculus.
Projection drawing of a transverse section through superior colliculus of the cat (cresyl violet stain) to show development of laminae. I1,2, sublaminae of stratum zonale; II1,2,3, sublaminae of stratum griseum superficiale; III, stratum opticum; IV, stratum griseum intermediale; V, stratum lemnisci; VI, stratum griseum profundum; VII, stratum album profundum; PAGL, periaquiductal gray, pars lateralis.
Representative types of neurons in frog optic tectum shown in a combined cytoarchitectonic diagram obtained from staining with hematoxylin‐eosin and reduced silver. Numerals at extreme left indicate the different layers; z, stratum zonale; p, plexiform sheets in layer 9. Golgi picture begins with a truncated ependymoglial cell. Numerals at right: 1, large pyramidal neuron with type 1 dendritic arborization pattern; 2 and 3, large pear‐shaped neurons with type 2 and 3 dendritic arborization patterns, respectively; 4, optic terminals; 5, ascending axon; 6, large ganglionic neuron; 7, small pear‐shaped neuron with descending axon; 8, small pear‐shaped neuron with a beaded axonlike process; 9, stellate neuron; 10, amacrine cell; 11, assumed endings of diencephalic afferent fibers.
Cell types in cat superior colliculus. Superior colliculus is divisible into two laminar divisions based on cell types seen in Golgi‐stained material. Superficial division (I, II, and upper portion of III) is characterized by neurons with vertically elongated (narrow‐field vertical cells, C) or horizontally elongated (horizontal cells, B) dendritic fields or by dendritic fields eccentrically distributed about the cell body (piriform cells, D; wide‐field vertical cells, F; inverted ganglion cells, E). The cat is unusual in apparently lacking marginal cells but having small stellate granule cells, A, in upper part of its superficial division. Stellate cells, G, are rarely seen in the middle of superficial division but become increasingly more frequent in its deep portion as it becomes transitional with deep division. Neurons of deep division (lower portion of III, IV, V, VI) are predominantly small‐ and medium‐sized stellate multipolar neurons, H, with occasional large or massive stellate neurons, I, usually in middle regions of layers IV and VI.
Topographic layout of visual field on surface of superior colliculus of mouse, rabbit, and cat. Derivation of 0° vertical meridian is different in each of these maps. In the mouse map the 0° vertical meridian is the vertical plane that intersects the projection of the long axis of the mouse's head. In the rabbit map the 0° vertical meridian intersects the perpendicular to the long axis of the head, which passes through the corneal vertex. In the cat map the 0° vertical meridian intersects the projection line of area centralis. In all three maps the 0° horizontal meridian intersects each of the described projection lines in the horizontal plane. Horizontal meridians run in the anteroposterior direction. The maps represent the contralateral retinal projection. A, anterior; P, posterior; M, medial; L, lateral.
Mouse data from Dräger and Hubel ; rabbit data from Hughes ; cat diagram courtesy of H. Sherk from data of Berman and Cynader and Feldon et al.
Retinotectal transformation. Top left: polar isograms for retinal surface of rabbit. The 0° vertical meridian intersects the perpendicular to the long axis of the head, which passes through the corneal vertex. The 0° horizontal meridian intersects the projection line in the horizontal plane. Stippled area, visual streak. Bottom left: approximate density distribution of retinal ganglion cells along horizontal, H, and vertical, V, meridians. Top right: collicular topography, polar coordinates. Stippled area, visual streak. Bottom right: collicular topography, rectilinear coordinates; transformation of circular spot on retina (black disk) is shown in colliculus by black oval area.
Location of transported protein in superior colliculi of rabbit, cat, and rhesus monkey after injection of labeled amino acids into right eye. In rabbit the projection is mostly contralateral. In the cat the ipsilateral projection is less dense than the contralateral projection. In monkey the ipsi‐ and contralateral projections are almost equal.
Schematic drawing of cat superior colliculus showing possible neuronal linkages in visuomotor transform. Thick arrows, major path; boxes outline representative slices of terminal fields from optic (retinal) tract and corticotectal tracts from areas 17, 18, 19, 21, C‐B, and 7; shaded areas, major foci of degeneration after lesions to these areas. MBSC, medial brachium of superior colliculus; LBSC, lateral brachium of superior colliculus; NIC, interstitial nucleus of Cajal and adjacent reticular formation; C‐B, Clare‐Bishop area; D, nucleus of Darkshevitch; OC, oculomotor nuclei; PAG, periaquiductal gray matter. Roman numerals represent the seven collicular laminae.
A: directionally selective unit in superior colliculus. Upper trace, microelectrode recording; lower trace, potentiometer recording of mirror movements indicating time course of moving light spot; solid arrows, direction of stimulus movement; ±, on‐off response to flashed light spot; ○, no response to light spot; large open arrow, preferred direction. B: distribution of direction‐selective neurons in cat superior colliculus. Number at end of each arrow gives percentage of cells in total sample of 317 cells that responded best in direction shown by arrow. Relative length of each line is proportional to percentage of cells represented by that line. Pooled data from left and right colliculi are computed in terms of directions relative to vertical meridian; directional preferences of majority of cells are for movement away from vertical meridian.
Distribution of ocular dominance of cells in cat superior colliculus. Total number of cells, 316. Numeral above each bar, number of cells per category. Cells in group 1 can be activated only through the contralateral eye, cells in group 4 are equally driven by either eye, and cells in group 7 are activated only by the ipsilateral eye. Groups 2, 3, 5, and 6 represent in‐between gradations.
A: histograms obtained from a single cell in monkey superior colliculus showing response to stimuli of varying diameters. Stimulus duration, 500 ms, presented once every 1,300 ms, 25 times per histogram. Response field, 18° from fovea; s/b, number of spikes per bin. B: response frequency as a function of stimulus size for four superior colliculus cells in cat superior colliculus. Each data point represents average of 12 repeated stimulus presentations obtained in a randomized order for each cell.
Representation of different body sections in cat superior colliculus. Coordinates are shown for a map of the visual field of the colliculus and is turned so that the anterior region faces the top of the figure. Note that a disproportionately large area is devoted to the trigeminal and forelimb representations.
A: map of somatosensory projection onto tectum of mouse. Letters refer to vibrissae, using notations shown in B; they indicate centers of tectal areas in which responses were recorded. Ovals, five overlapping regions within which the five rows of whiskers were represented. B: vibrissae. C: visual topography.
Selective enhancement of on‐response of a cell in monkey superior colliculus. Histograms on the right constructed from same cell discharges as displayed in rasters on left. Bin width, 8 ms; vertical scale, height of a bin if a cell discharged at 250 spikes/s per trial. Vertical scale line below histogram, stimulus onset; time between dots along abscissa on both rasters and histograms, 50 ms. A: cell discharge to receptive‐field stimulus, RF; dashed circle, excitatory central region of receptive field while the monkey was looking at fixation point, FP. B: increased response associated with saccades to receptive‐field stimulus; average latency after stimulus onset, 250 ms. C: saccades to a control stimulus, CON, in contralateral visual field; no enhancement.
Extracellular discharge characteristics of a single cell in oculomotor nucleus of monkey. This cell increases its firing rate in association with downward eye movement. Upper row, spontaneous saccadic eye movement with intervening periods of fixation. Lower row, unit activity during smooth pursuit brought about by moving the object in front of monkey. In each of the two rows: upper trace, unit activity; lower trace, vertical eye movement. Horizontal lines superimposed on eye movement record, coordinates in degrees of deviation from straight‐ahead gaze; upward deflection, elevation of eye; downward deflection, depression of eye.
Discharge characteristics of a unit in intermediate layers of monkey superior colliculus related to eye movement. Recordings obtained in an alert monkey with one eye surgically immobilized. A, B, C: unit discharge and eye movement in the light; moving eye unoccluded; cell discharges prior to small left and upward saccades. D: response to a 0.25° light spot moved back and forth with square wave motion within receptive field of immobilized eye; moving eye occluded. Marker, stimulus movement; HEM, horizontal eye movement record; VEM, vertical eye movement record.
Retinotopically coded motor field of a monkey superior colliculus unit. Each mark represents size and direction of a saccade. Open circles, saccades not associated with unit activity; filled circles, saccades preceded by a burst of spikes. Direction and size of saccade shown by quadrants designated left, right, up, down, and by degrees within these areas. Central crossing point, eye position prior to each saccade. Cell discharges only in association with small left saccades.
Unit activity associated with eye movement in superior colliculus of trained monkeys. A: standard tracking task: if monkey fixated center dot for 2 s the target was moved to one of the 24 positions indicated by the filled circles. B: burst index as a function of angle of movement (difference between the number of spikes occurring during a 500‐ms time sample for center target fixation and for a similar time period after eye movement to new target location): each point represents the median value of three observations. C: burst index as a function of angle and radius of eye movement. D: response of a superior colliculus unit to a series of saccades with a radius of 1° but varying in direction. Onset of target movement is indicated by arrow below each trace.
Relation between spike burst latency and saccade latency for two neurons in monkey superior colliculus. Abscissa, interval between target onset and onset of spike pulse. Ordinate, saccade latency.
Effects of electrical stimulation in abducens nucleus and superior colliculus of monkey as a function of burst duration and frequency. All eye movement records are horizontal, saccades going to the left. Left, stimulating frequency is constant and duration is varied; right, duration is constant and frequency is varied. Long staircase of saccades shown at bottom of figure was elicited by stimulating within the anterior tip of superior colliculus.
Electrical stimulation of monkey colliculus: dependence of evoked saccade amplitude and direction on initial eye position. A saccade is represented as a directed line starting at initial eye position and ending at position to which saccade carried the eye. A: examples of colliculus‐evoked saccades that did not depend on initial position. B: hypothetical example of way in which saccades would appear if they had been goal directed.
Results of experiment that paired single‐unit recordings and electrical stimulation at each of several sites in superficial layers of monkey superior colliculus. Map of visual field with receptive fields of 14 units is superimposed on map of motor responses, its arrow representing electrically elicited saccades at each of the 14 sites. Length of each arrow represents mean length of 8–14 stimulation‐elicited saccades; direction of each arrow represents mean direction of saccades. HM, horizontal meridian; VM, vertical meridian; hatched areas, receptive fields of single neurons. Numerals correlate receptive fields and saccades.
Effects of simultaneous stimulation at two collicular sites in monkey superior colliculus. Top: schematic for two sets of stimulation sites in colliculus (1 and 2). Bottom: types of saccades elicited to single (1 or 2) or paired (1 and 2) stimulation. Shaded areas, range over which saccades can be elicited by varying amount of current delivered through the two electrodes. A, anterior; M, medial; L, lateral; P, posterior; hm, horizontal meridian.
Experimental procedures demonstrating that both retinal error and eye position information are used to compute size and direction of saccadic eye movements. A: human subject fixates in total darkness on fixation spot F, which is extinguished when stimulus S1 is flashed. As subject initiates saccade toward S1 (horizontal arrow) a second target, S2, is flashed on at the time the eye is at position marked by x, appearing straight up from fovea. Upon reaching position S1 subject makes second saccade. If second saccade is straight up, only retinal error signal is computed. If second saccade is to S2, both retinal error and eye position information are utilized. Subjects always saccade to S2. B: schematic for experiment in which collicular stimulation in monkey is used to pull the eye to position S after brief appearance of target T to which animal has been trained to saccade. Utilization of retinal error signal alone should generate an eye movement to T′. Utilization of both retinal error and eye position signals should bring eye to T. C: two saccades are shown. For the first, going directly to T, target was flashed but colliculus was not stimulated. For the second, collicular stimulation displaced the eye toward S, but eye still ended up at T, suggesting utilization of both retinal error and eye position information.
Response characteristics of two units in superior colliculus of monkey before, during, and after cooling of visual cortex. A: unit 220 μm below surface of colliculus (stratum griseum superficiale). Bottom trace, time course of presentation of stimulus, a flashing spot centered in receptive field. B: unit 400 μm below surface of colliculus (stratum opticum); stimulus, a moving spot. Bottom trace, movement of stimulus.
Method for testing sensitivity in various parts of the visual field. Cat is restrained, its lateral canthi aligned along the 90° guidelines and its nose pointed along the 0° guideline to the fixation object (a piece of food in forceps). For tests of specific visual responses the novel stimulus (food in forceps or a painted ball at the end of a stiff wire) is introduced along one of the guidelines, after which the cat is freed from restraint and its behavior noted. For control tests of nonspecific responses the novel stimulus either is not introduced or is introduced laterally at approximately 120° (out of the cat's visual field) before the cat is freed.
Development of direction‐selective responses with age in superior colliculus of kitten. Height of each bar, proportion of cells in each age group that gave direction‐selective responses. N, number of cells.
Ocular dominance histograms for striate cortex and superior colliculus of cats raised either with eye suture or with induced strabismus. Cells in group 1 can be activated only through the contralateral eye; cells in group 4 are equally driven by either eye; and cells in group 7 are activated only by the ipsilateral eye.
Response characteristics of a cat superior colliculus cell as assessed through rotated (squares) and normal (stars) eye. Twelve directions of movement in 30° steps were presented eight times in a randomized order. Each eye was tested separately. Tuning curves in the two eyes are similar, indicating that this cell responded optimally to the same direction of stimulus movement in visual space through the two eyes despite the 90° rotation of one eye. Stimulus size, 3° square; stimulus velocity, 20°/s.
1. Abplanalp, P. The neuroanatomical organization of the visual system in the tree shrew. Folia Primat. 16: 1–34, 1971.
2. Akert, K. Der Visuelle Greifreflex. Helv. Physiol. Pharmacol. Acta 7: 112–134, 1949.
3. Albano, J. E., A. L. Humphrey, and T. T. Norton. The laminar organization of receptive‐field properties in the tree shrew superior colliculus. J. Neurophysiol. 41: 1140–1164, 1978.
4. Altman, J. Some fiber projections in the superior colliculus in the cat. J. Comp. Neurol. 119: 77–95, 1962.
5. Altman, J., and M. B. Carpenter. Fiber projections of the superior colliculus in the cat. J. Comp. Neurol. 116: 157–178, 1961.
6. Altman, J., and L. Malis. An electrophysiological study of the superior colliculus and visual cortex. Exp. Neurol. 5: 233–249, 1962.
7. Anderson, K. V., and D. Symmes. The superior colliculus and higher visual functions in the monkey. Brain Res. 13: 37–52, 1969.
8. Anderson, K. V., and M. R. Williamson. Visual pattern discrimination in cats after removal of the superior colliculus. Psychon. Sci. 24: 125–127, 1971.
9. Anderson, M. E., M. Yoshida, and V. J. Wilson. Influence of superior colliculus on cat neck motoneurons. J. Neurophysiol. 34: 898–907, 1971.
10. Andrew, R. J. Changes in visual responsiveness following intercollicular lesions and their effects on avoidance and attack. Brain Behav. Evol. 10: 400–424, 1974.
11. Angaut, P. The fastigio‐tectal projections. An anatomical experimental study. Brain Res. 13: 186–189, 1969.
12. Apter, J. T. Projection of the retina on superior colliculus of cats. J. Neurophysiol. 8: 123–134, 1945.
13. Apter, J. T. Eye movements following strychninization of the superior colliculus of cats. J. Neurophysiol. 9: 73–86, 1946.
14. Astruc, J. Corticofugal connections of area 8 (frontal eye fields) in Macaca mulatta Brain Res. 33: 241–256, 1971.
15. Baker, R., M. Gresty, and A. Berthoz. Neuronal activity in the prepositus hypoglossi nucleus correlated with vertical and horizontal eye movements in the cat. Brain Res. 101: 366–371, 1976.
16. Barlow, H. B., R. M. Hill, and W. R. Levick. Retinal ganglion cells responding selectively to direction and speed of image motion in the rabbit. J. Physiol. London 173: 377–407, 1964.
17. Barnes, P. H., L. M. Smith, and R. M. Latto. Orientation to visual stimuli and the superior colliculus in the rat. Q. J. Exp. Psychol. 22: 239–247, 1970.
18. Bender, M. B. (editor). The Oculomotor System. New York: Hoeber, 1964.
19. Benevento, L. A., and J. H. Fallon. The ascending projections of the superior colliculus in the rhesus monkey. J. Comp. Neurol. 169: 339–362, 1975.
20. Berlucchi, G., J. M. Sprague, J. Levy, and A. C. Di‐Berardino. Pretectum and superior colliculus in visually guided behavior, and in flux and form discrimination in the cat. J. Comp. Physiol. Psychol. 78: 123–172, 1972.
21. Berman, N., and M. Cynader. Comparison of receptive‐field organization of the superior colliculus in Siamese and normal cats. J. Physiol. London 224: 363–389, 1972.
22. Bisti, S., L. Maffei, and M. Piccolino. Visuovestibular interactions in the cat superior colliculus. J. Neurophysiol. 37: 146–155, 1974.
23. Bisti, S., and R. C. Sireteanu. Sensitivity to spatial frequency and contrast of visual cells in the cat superior colliculus. Vision Res. 16: 247–251, 1976.
24. Bizzi, E. Discharge of frontal eye field neurons during saccadic and following eye movements in unanesthetized monkeys. Exp. Brain Res. 6: 69–80, 1968.
25. Bizzi, E., and P. H. Schiller. Single unit activity in the frontal eye fields of unanesthetized monkeys during eye and head movement. Exp. Brain Res. 10: 151–158, 1970.
26. Blake, L. The effects of lesions of the superior colliculus on brightness and pattern discriminations in the cat. J. Comp. Physiol. Psychol. 52: 272–278, 1959.
27. Blum, B., V. Godel, S. Gitter, and R. Stein. Impulse propagation from photically discharged neurons in the visual system. Pfluegers Arch. 331: 38–43, 1972.
28. Boycott, B. B., and H. Wässle. The morphological types of ganglion cells of the domestic cat's retina. J. Physiol. London 240: 397–419, 1974.
29. Burgi, S. Das Tectum opticum. Seine Verbindungen bei der Katze und seine Bedeutung beim Menschen. Dtsch. Z. Nervenheilk. 176: 701–729, 1957.
30. Casagrande, V. A., and I. Diamond. Ablation study of the superior colliculus in tree shrew (Tupaia glis) J. Comp. Neurol. 156: 207–238, 1974.
31. Chow, K. L., H. M. Lawrence, and P. D. Spear. Spreading of uncrossed retinal projection in superior colliculus of neonatally enucleated rabbits. J. Comp. Neurol. 151: 307–322, 1973.
32. Cleland, B. G., and W. R. Levick. Brisk and sluggish concentrically organized ganglion cells in the cat's retina. J. Physiol. London 240: 421–456, 1974.
33. Cohen, D. H. Visual intensity discrimination in pigeons following unilateral and bilateral tectal lesions. J. Comp. Physiol. Psychol. 63: 172–174, 1967.
34. Collewijn, H. The optokinetic system of the rabbit. Doc. Ophthalmol. 30: 205–226, 1971.
35. Collewijn, H. Direction‐selective units in the rabbit's nucleus of the optic tract. Brain Res. 100: 489–508, 1975.
36. Collewijn, H. Oculomotor areas in the rabbit's midbrain and pretectum. J. Neurobiol. 6: 3–22, 1975.
37. Cronly‐Dillon, J. R. Units sensitive to direction of movement in goldfish optic tectum. Nature 203: 214–215, 1964.
38. Cynader, M., and N. Berman. Receptive‐field organization of monkey superior colliculus. J. Neurophysiol. 35: 187–201, 1972.
39. Cynader, M., N. Berman, and A. Hein. Cats raised in a one‐directional world: effects on receptive fields in visual cortex and superior colliculus. Exp. Brain Res. 22: 267–280, 1975.
40. Cynader, M., C. Blakemore, and R. C. Van Sluyters. Congruent binocular preferred directions in the superior colliculus of kittens reared with one eye rotated (Abstract). Soc. Neurosci. Abstr. 4: 623, 1978.
41. De Monasterio, F. M., P. Gouras, and D. J. Tolhurst. Trichromatic colour opponency in ganglion cells of the rhesus monkey retina. J. Physiol. London 251: 197–216, 1975.
42. Denny‐Brown, D. The midbrain and motor integration. Proc. R. Soc. Med. 55: 527–538, 1962.
43. Dixon, J., and B. E. Stein. Receptive field characteristics of visual cells in the superior colliculus of the golden hamster (Abstract). Soc. Neurosci. Abstr. 3: 558, 1977.
44. Dräger, U. C., and D. H. Hubel. Responses to visual stimulation and relationship between visual, auditory, and somatosensory inputs in mouse superior colliculus. J. Neurophysiol. 38: 690–713, 1975.
45. Dräger, U. C., and D. H. Hubel. Topography of visual and somatosensory projections to mouse superior colliculus. J. Neurophysiol. 39: 91–101, 1976.
46. Edwards, S. B. The commissural projection of the superior colliculus in the cat. J. Comp. Neurol. 173: 23–40, 1977.
47. Edwards, S. B., and C. K. Henkel. Superior colliculus connections with the extraocular motor nuclei in the cat. J. Comp. Neurol. 179: 451–468, 1978.
48. Enroth‐Cugell, C., and J. G. Robson. The contrast sensitivity of retinal ganglion cells of the cat. J. Physiol. London 187: 517–552, 1966.
49. Evarts, E. V. Methods for recording individual neurons in moving animals. In: Methods in Medical Research, edited by R. F. Rushman. Chicago: Year Book Med., 1966, p. 241–250.
50. Ewert, J.‐P. Der Einfluss von Zwischenhirndefekten auf die Visuomotorik im Beute‐ und Fluchverhalten der Erdkröte (Bufo bufo L.). Z. Vgl. Physiol. 61: 41–70, 1968.
51. Ewert, J.‐P. Neural mechanisms of prey‐catching and avoidance behavior in the toad (Bufo bufo L.). Brain Behav. Evol. 3: 36–56, 1970.
52. Ewert, J.‐P., and H. W. Borchers. Reaktionscharakteristik von Neuronen aus dem Tectum opticum und Subtectum der Erdkröte (Bufo bufo L.). Z. Vgl. Physiol. 71: 165–189, 1970.
53. Feldon, S., P. Feldon, and L. Kruger. Topography of retinal projection upon the superior colliculus of the cat. Vision Res. 10: 135–143, 1970.
54. Finlay, B. L. Neuronal Specificity and Plasticity in the Hamster Superior Colliculus: Electrophysiological Studies. Cambridge: Massachusetts Inst. of Technol., 1976. Ph.D thesis.
55. Finlay, B. L., P. H. Schiller, and S. F. Volman. Quantitative studies of single‐cell properties in monkey striate cortex. IV. Corticotectal cells. J. Neurophysiol. 39: 1352–1361, 1976.
56. Fischman, M. W., and T. Meikle. Visual intensity discrimination in cats after serial tectal and cortical lesions. J. Comp. Physiol. Psychol. 59: 193–201, 1965.
57. Fite, K. V. Single‐unit analysis of binocular neurons in the frog optic tectum. Exp. Neurol. 24: 475–486, 1969.
58. Flandrin, J. M., and M. Jeannerod. Developmental constraints of motion detection mechanisms in the kitten. Perception 6: 513–527, 1977.
59. Flandrin, J. M., H. Kennedy, and B. Amblard. Effects of stroboscopic rearing on the binocularity and directionality of cat superior colliculus neurons. Brain Res. 101: 576–581, 1976.
60. Frost, B. J., and D. E. DiFranco. Motion characteristics of single units in the pigeon optic tectum. Vision Res. 16: 1229–1234, 1976.
61. Frost, B. J., and S. C. P. Wong. The effect of relative motion on directionally specific pigeon tectal units (Abstract). Soc. Neurosci. Abstr. 3: 560, 1977.
62. Fukuda, Y., and J. Stone. Retinal distribution and central projections of Y‐, X‐, and W‐cells of the cat's retina. J. Neurophysiol. 37: 749–772, 1974.
63. Garey, L. J., E. G. Jones, and T. P. S. Powell. Interrelationship of striate and extrastriate cortex with the primary relay sites of the visual pathway. J. Neurol. Neurosurg. Psychiatry 31: 135–157, 1968.
64. Garey, L. J., and T. P. Powell. The projection of the retina in the cat. J. Anat. 102: 189–222, 1968.
65. Gaze, R. M. Regeneration of the optic nerve in Xenopus laevis Q. J. Exp. Physiol. Cogn. Med. Sci. 44: 290–308, 1959.
66. Gilbert, D. C., and J. P. Kelly. The projections of cells in different layers of the cat's visual cortex. J. Comp. Neurol. 163: 81–106, 1975.
67. Glendenning, K. K., J. A. Hall, and W. C. Hall. The connections of the pulvinar in a primate (Galago senegalensis) (Abstract). Anat. Rec. 172: 316, 1972.
68. Goldberg, M. E., and R. H. Wurtz. Activity of superior colliculus in behaving monkey. I. Visual receptive fields of single neurons. J. Neurophysiol. 35: 542–559, 1972.
69. Goldberg, M. E., and R. H. Wurtz. Activity of superior colliculus in behaving monkey. II. Effect of attention on neuronal responses. J. Neurophysiol. 35: 560–574, 1972.
70. Goodale, M. A., N. P. Foreman, and A. D. Milner. Visual orientation in the rat: a dissociation of deficits following cortical and collicular lesions. Exp. Brain Res. 31: 445–457, 1978.
71. Goodale, M. A., and R. C. C. Murison. The effects of lesions of the superior colliculus on locomotor orientation and the orienting reflex in the rat. Brain Res. 88: 243–261, 1975.
72. Gordon, B. Receptive fields in deep layers of cat superior colliculus. J. Neurophysiol. 36: 157–178, 1973.
73. Gordon, B., and L. Gummow. Effects of extraocular muscle section on receptive fields in cat superior colliculus. Vision Res. 15: 1011–1019, 1975.
74. Gordon, B., and J. Presson. Effects of alternating occlusion on receptive fields in cat superior colliculus. J. Neurophysiol. 40: 1406–1414, 1977.
75. Gouras, P. Antidromic responses of orthodromically identified ganglion cells in the monkey retina. J. Physiol. London 204: 407–419, 1969.
76. Grafstein B. Axonal transport: the intracellular traffic of the neuron. In: Handbook of Physiology. The Nervous System, edited by John M. Brookhart and Vernon B. Mountcastle. Bethesda, MD: Am. Physiol. Soc., 1977, sect. 1, vol I, pt. 1, chapt. 19, p. 691–717.
77. Graham, J. An autoradiographic study of the efferent connections of the superior colliculus in the cat. J. Comp. Neurol. 173: 629–654, 1977.
78. Grantyn, A. A., and R. Grantyn. Synaptic actions of tectofugal pathways on abducens motorneurons in the cat. Brain Res. 105: 269–285, 1976.
79. Graybiel, A. M. Visuo‐cerebellar and cerebello‐visual connections involving the ventral lateral geniculate nucleus. Exp. Brain Res. 20: 303–306, 1974.
80. Graybiel, A. M. Anatomical organization of retinotectal afferents in the cat: An autoradiographic study. Brain Res. 96: 1–23, 1975.
81. Graybiel, A. M. Evidence for banding of the cat's ipsilateral retinotectal connection. Brain Res. 114: 318–327, 1976.
82. Graybiel, A. M., and E. A. Hartwieg. Some afferent connections of the oculomotor complex in the cat: an experimental study with tracer techniques. Brain Res. 81: 543–551, 1974.
83. Grüsser‐Cornehls, U. Response of movement‐detecting neurons of the frog's retina to moving patterns under stroboscopic illumination. Pfluegers Arch. 303: 1–13, 1968.
84. Grüsser‐Cornehls, U., O.‐J. Grüsser, and T. H. Bullock. Unit responses in the frog's tectum to moving and nonmoving visual stimuli. Science 141: 820–822, 1963.
85. Grüsser‐Cornehls, U., and W. Himstedt. Responses of retinal and tectal neurons of the salamander. Brain. Behav. Evol. 7: 145–168, 1973.
86. Guitton, D., M. Crommelinck, and A. Roucoux. Stimulation of the superior colliculus in the alert cat. I. Eye movements and neck EMG activity evoked when the head is restrained. Exp. Brain Res. 39: 63–73, 1980.
87. Hallett, P. E., and A. D. Lightstone. Saccadic eye movements to flashed targets. Vision Res. 16: 107–114, 1976.
88. Hallett, P. E., and A. D. Lightstone. Saccadic eye movements towards stimuli triggered by prior saccades. Vision Res. 16: 99–106, 1976.
89. Hamilton, B. L. Projections of the nuclei of the periaqueductal gray matter in the cat. J. Comp. Neurol. 152: 45–58, 1973.
90. Harris, L. R. The superior colliculus and movements of the head and eyes in cats. J. Physiol. London 300: 367–391, 1980.
91. Harting, J. K. Descending pathways from the superior colliculus: an autoradiographic analysis in the rhesus monkey. J. Comp. Neurol. 173: 583–612, 1977.
92. Harting, J. K., and R. W. Guillery. Organization of retinocollicular pathways in the cat. J. Comp. Neurol. 166: 133–143, 1976.
93. Harting, J. K., W. C. Hall, I. T. Diamond, and G. F. Martin. Anterograde degeneration study of the superior colliculus in Tupaia glis: evidence for a subdivision between superficial and deep layers. J. Comp. Neurol. 148: 361–386, 1973.
94. Harting, J. K., M. F. Huerta, A. J. Frankfurter, N. L. Strominger, and G. J. Royce. Ascending pathways from the monkey superior colliculus: an autoradiographic analysis. J. Comp. Neurol. 192: 853–882, 1980.
95. Hartline, P. H., M. S. Loop, and L. Kass. Merging of modalities in the optic tectum: infrared and visual integration in rattlesnakes (Abstract). Soc. Neurosc. Abstr. 3: 364, 1977.
96. Hayashi, Y. Recurrent collateral inhibition of visual cortical cells projecting to superior colliculus in cats. Vision Res. 9: 1367–1380, 1969.
97. Hayashi, Y., T. Nagata, Y. Tamaki, and K. Iwama. Binocular interaction in the superior colliculus of chronic cats. Exp. Brain Res. 18: 531–547, 1973.
98. Hayhow, W. R., A. Sefton, and C. Webb. Primary optic centers of the rat in relation to the terminal distribution of the crossed and uncrossed optic nerve fibers. J. Comp. Neurol. 118: 295–321, 1962.
99. Henn, V., and B. Cohen. Quantitative analysis of activity in eye muscle motoneurons during saccadic eye movements and positions of fixation. J. Neurophysiol. 36: 115–126, 1973.
100. Hess, W. R., S. Burgi, and V. Bucher. Motorische Funktion des Tektal‐ und Tegmentalgebietes. Monatsschr. Psychiatr. Neurol. 112: 1–52, 1946.
101. Highstein, S. M., K. Mackawa, A. Steinacker, and B. Cohen. Synaptic input from the pontine reticular nuclei to abducens motoneurons and internuclear neurons in the cat. Brain Res. 112: 162–167, 1976.
102. Hodos, W., and H. J. Karten. Visual intensity and pattern discrimination deficits after lesions of the optic lobe in pigeons. Brain Behav. Evol. 9: 165–194, 1974.
103. Hoffmann, K.‐P. The retinal input to the superior colliculus in the cat. Invest. Ophthalmol. 11: 467–473, 1972.
104. Hoffmann, K.‐P. Conduction velocity in pathways from retina to superior colliculus in the cat: a correlation with receptive‐field properties. J. Neurophysiol. 36: 409–424, 1973.
105. Hoffmann, K.‐P., and B. Dreher. The spatial organization of the excitatory region of receptive fields in the cat's superior colliculus. Exp. Brain Res. 16: 354–370, 1973.
106. Hoffmann, K.‐P., and S. M. Sherman. Effects of early monocular deprivation on visual input to cat superior colliculus. J. Neurophysiol. 37: 1276–1286, 1974.
107. Hoffmann, K.‐P., and M. Straschill. Influences of corticotectal and intertectal connections on visual responses in the cat's superior colliculus. Exp. Brain Res. 12: 120–131, 1971.
108. Horn, G., and R. M. Hill. Responsiveness to sensory stimulation of units in the superior colliculus and subjacent tectotegmental regions of the rabbit. Exp. Neurol. 14: 199–223, 1966.
109. Hubel, D. H. Cortical unit responses to visual stimuli in nonanesthetized cats. Am. J. Ophthalmol. 46: 110–121, 1958.
110. Hubel, D. H., S. LeVay, and T. N. Wiesel. Mode of termination of retinotectal fibers in macaque monkey: an autoradiographic study. Brain Res. 96: 25–40, 1975.
111. Hubel, D. H., and T. N. Wiesel. Receptive fields, binocular interaction and functional architecture in the cat's visual cortex. J. Physiol. London 160: 106–154, 1962.
112. Hubel, D. H., and T. N. Wiesel. Binocular interaction in striate cortex of kittens reared with artificial squint. J. Neurophysiol. 28: 1041–1059, 1965.
113. Hubel, D. H., and T. N. Wiesel. The period of susceptibility to the physiological effects of unilateral eye closure in kittens. J. Physiol. London 206: 419–436, 1970.
114. Hughes, A. Topographical relationship between the anatomy and physiology of the rabbit visual system. Doc. Ophthalmol. 30: 33–159, 1971.
115. Humphrey, N. K. The receptive fields of visual units in the superior colliculus of the rat. J. Physiol. London 189: 86P–88P, 1967.
116. Humphrey, N. K. Responses to visual stimuli of units in the superior colliculus of rats and monkeys. Exp. Neurol. 20: 312–340, 1968.
117. Hunt, R. K., and M. Jacobson. Neuronal specificity revisited. Curr. Top. Dev. Biol. 8: 203–259, 1974.
118. Ingle, D. Visual releasers of prey‐catching behavior in frogs and toads. Brain Behav. Evol. 1: 500–518, 1968.
119. Ingle, D. Visuomotor functions of the frog optic tectum. Brain Behav. Evol. 3: 57–71, 1970.
120. Ingle, D. Prey‐catching behavior of Anurans toward moving and stationary objects. Vision Res. 11: (Suppl. 3): 447–456, 1971.
121. Ingle, D. Disinhibition of tectal neurons by pretectal lesions in the frog. Science 180: 422–424, 1973.
122. Ingle, D. Evolutionary perspectives on the function of the optic tectum. Brain Behav. Evol. 8: 211–237, 1973.
123. Ingle, D., and J. M. Sprague. Sensorimotor function of the midbrain tectum. Neurosci. Res. Program Bull. 13: 169–288, 1975.
124. Ito, M., T. Shida, N. Yagi, and M. Yamamoto. Visual influence on rabbit horizontal vestibulo‐ocular reflex presumably effected via the cerebellar flocculus. Brain Res. 65: 170–174, 1974.
125. Jacobs, G. H., and R. L. Yolton. Visual sensitivity and color vision in ground squirrels. Vision Res. 11: 511–537, 1971.
126. Jacobson, M., and R. M. Gaze. Types of visual response from single units in optic tectum and optic nerve of goldfish. Q. J. Exp. Physiol. Cogn. Med. Sci. 49: 199–209, 1964.
127. Jarvis, C. D. Visual discrimination and spatial localization deficits after lesions of the tectofugal pathway in pigeons. Brain Behav. Evol. 9: 195–228, 1974.
128. Jassik‐Gerschenfeld, D., and J. Guichard. Visual receptive fields of single cells in pigeon's optic tectum. Brain Res. 40: 303–317, 1972.
129. Kadoya, S., L. R. Wolin, and L. C. Massopust, Jr. Collicular unit responses to monochromatic stimulation in squirrel monkey. Brain Res. 32: 251–254, 1971.
130. Kadoya, S., L. R. Wolin, and L. C. Massopust, Jr. Photically evoked unit activity in the tectum opticum of the squirrel monkey. J. Comp. Neurol. 142: 495–508, 1971.
131. Kanaseki, T., and J. M. Sprague. Anatomical organization of pretectal nuclei and tectal laminae in the cat. J. Comp. Neurol. 158: 319–337, 1974.
132. Kawamura, K., A. Brodal, and G. Hoddevik. The projection of the superior colliculus onto the reticular formation of the brain stem. An experimental anatomical study in the cat. Exp. Brain Res. 19: 1–19, 1974.
133. Kawamura, S., and E. Kobayashi. Identification of laminar origin of some tecto‐thalamic fibers in the cat. Brain Res. 91: 281–285, 1975.
134. Kawamura, S., J. M. Sprague, and K. Niimi. Corticofugal projections from the visual cortices to the thalamus, pretectum and superior colliculus in the cat. J. Comp. Neurol. 158: 339–362, 1974.
135. Keating, E. G. Impaired orientation after primate tectal lesions. Brain Res. 67: 538–541, 1974.
136. Keating, M. J. The formation of visual neuronal connections in an appraisal of the present status of the theory of “neuronal specificity”. In: Studies in the Development of Behavior and the Nervous System. Neural and Behavioral Specificity, edited by G. Gottlieb. New York: Academic, 1976, vol. 3, p. 59–110.
137. Keller, E. L. Colliculoreticular organization in the oculomotor system. In: Progress in Brain Research. Reflex Control of Posture and Movement, edited by R. Granit and O. Pompeiano. Amsterdam: Elsevier, 1979, vol. 50, p. 725–734.
138. Kelly, J. P., and C. D. Gilbert. The projections of different morphological types of ganglion cells in the cat retina. J. Comp. Neurol. 163: 65–80, 1975.
139. Kruger, L. The topography of the visual projection to the mesencephalon: a comparative study. Brain Behav. Evol. 3: 169–177, 1970.
140. Kurtz, D., and C. M. Butter. Impairments in visual discrimination performance and gaze shifts in monkeys with superior colliculus lesions. Brain Res. 196: 109–124, 1980.
141. Kuypers, H. G. J. M., and D. G. Lawrence. Cortical projections to the red nucleus and the brain stem in the rhesus monkey. Brain Res. 4: 151–188, 1967.
142. Lane, R. H., J. M. Allman, J. H. Kaas, and F. M. Miezin. The visuotopic organization of the superior colliculus of the owl monkey (Aotus trivirgatus) and the bush baby (Galago senegalensis) Brain Res. 60: 335–349, 1973.
143. Langer, T. P., and R. D. Lund. The upper layers of the superior colliculus of the rat: a Golgi study. J. Comp. Neurol. 158: 405–436, 1974.
144. Laties, A. M., and J. M. Sprague. The projection of the optic fibers to the visual centers in the cat. J. Comp. Neurol. 127: 35–70, 1966.
145. Latto, R., and A. Cowey. Fixation changes after frontal eye‐field lesions in monkeys. Brain Res. 30: 25–36, 1971.
146. Latto, R., and A. Cowey. Visual field defects after frontal eye‐field lesions in monkeys. Brain Res. 30: 1–24, 1971.
147. Lee, K. J., and T. A. Woolsey. A proportional relationship between peripheral innervation density and cortical neuron number in the somatosensory system of the mouse. Brain Res. 99: 349–353, 1975.
148. LeVay, S., M. P. Stryker, and C. J. Shatz. Postnatal development of ocular dominance columns in layer IV of the cat's visual cortex. Soc. Neurosci. Abstr. 3: 567, 1977.
149. Lund, J. S., R. D. Lund, A. E. Hendrickson, A. H. Bunt, and A. F. Fuchs. The origin of efferent pathways from the primary visual cortex area 17 of the macaque monkey as shown by retrograde transport of horseradish peroxidase. J. Comp. Neurol. 164: 287–304, 1975.
150. Lund, R. D. Synaptic patterns of the superficial layers of the superior colliculus of the rat. J. Comp. Neurol. 135: 179–208, 1969.
151. Lund, R. D. Synaptic patterns in the superficial layers of the superior colliculus of the monkey, Macaca mulatta. Exp. Brain Res. 15: 194–211, 1972.
152. MacKinnon, D. A., C. G. Gross, and D. B. Bender. A visual deficit after superior colliculus lesions in monkeys. Acta Neurobiol. Exp. 36: 169–180, 1976.
153. Magalhaes‐Castro, H. H., L. A. Murata, and E. Magalhaes‐Castro. Cat retinal ganglion cells projecting to superior colliculus as shown by horseradish peroxidase method. Exp. Brain Res. 25: 541–549, 1976.
154. Malpeli, J. G., and P. H. Schiller. Visuo‐motor function in monkeys with visual cortex ablation and with crossed corticotectal ablations (Abstract). Soc. Neurosci. Abstr. 1: 72, 1975.
155. Malpeli, J. G., and P. H. Schiller. Lack of blue OFF‐center cells in the visual system of the monkey. Brain Res. 141: 385–389, 1978.
156. Mandl, G. The influence of visual pattern combinations on responses of movement sensitive cells in cat's superior colliculus. Brain Res. 75: 215–240, 1974.
157. Marrocco, R. T., and R. H. Li. Monkey superior colliculus: properties of single cells and their afferent inputs. J. Neurophysiol. 40: 844–860, 1977.
158. Masland, R. H., K. L. Chow, and D. L. Stewart. Receptive‐field characteristics of superior colliculus neurons in the rabbit. J. Neurophysiol. 34: 148–156, 1971.
159. Mays, L. W., and D. L. Sparks. Saccades are spatially, not retinocentrically, coded. Science 208: 1163–1165, 1980.
160. Mays, L. E., and D. L. Sparks. Dissociation of visual and saccade‐related responses in superior colliculus neurons. J. Neurophysiol. 43: 207–232, 1980.
161. McIlwain, J. T. Retinotopic fidelity of striate cortex‐superior colliculus interactions in the cat. J. Neurophysiol. 36: 702–710, 1973.
162. McIlwain, J. T. Topographic relations in projection from striate cortex to superior colliculus of the cat. J. Neurophysiol. 36: 690–701, 1973.
163. McIlwain, J. T. Visual receptive fields and their images in superior colliculus of cat. J. Neurophysiol. 38: 219–230, 1975.
164. McIlwain, J. T., and P. Buser. Receptive fields of single cells in cat's superior colliculus. Exp. Brain Res. 5: 314–325, 1968.
165. McIlwain, J. T., and H. L. Fields. Interactions of cortical and retinal projections on single neurons of the cat's superior colliculus. J. Neurophysiol. 34: 763–772, 1971.
167. Meikle, T. H., Jr., and J. M. Sprague. The neural organization of the visual pathways in the cat. Int. Rev. Neurobiol. 6: 148–189, 1964.
168. Mello, N. K. The effects of unilateral lesions of the optic tectum on interhemispheric transfer of monocularly trained color and pattern discriminations in the pigeon. Physiol. Behav. 3: 725–734, 1968.
169. Michael, C. R. Integration of retinal and cortical information in the superior colliculus of the ground squirrel. Brain Behav. Evol. 3: 205–209, 1970.
170. Michael, C. R. Visual response properties and functional organization of cells in the superior colliculus of the ground squirrel. Vision Res. 11: (Suppl. 3): 299–308, 1971.
171. Michael, C. R. Functional organization of cells in superior colliculus of the ground squirrel. J. Neurophysiol. 35: 833–846, 1972.
172. Michael, C. R. Visual receptive fields of single neurons in superior colliculus of the ground squirrel. J. Neurophysiol. 35: 815–832, 1972.
173. Miles, F. A., and J. H. Fuller. Adaptive plasticity in the vestibulo‐ocular responses of the rhesus monkey. Brain Res. 80: 512–516, 1974.
174. Mize, R. R., and E. H. Murphy. Alterations in receptive field properties of superior colliculus cells produced by visual cortex ablation in infant and adult cats. J. Comp. Neurol. 168: 393–424, 1976.
175. Mohler, C. W., M. E. Goldberg, and R. H. Wurtz. Visual receptive fields of frontal eye field neurons. Brain Res. 61: 385–389, 1973.
176. Mohler, C. W., and R. H. Wurtz. Organization of monkey superior colliculus; intermediate layer cells discharging before eye movements. J. Neurophysiol. 39: 722–744, 1976.
177. Mohler, C. W., and R. H. Wurtz. Role of striate cortex and superior colliculus in visual guidance of saccadic eye movements in monkeys. J. Neurophysiol. 40: 74–94, 1977.
178. Moore, R. Y., and J. M. Goldberg. Ascending projections of the inferior colliculus in the cat. J. Comp. Neurol. 121: 109–136, 1963.
179. Nauta, W. J. H., and H. G. J. M. Kuypers. Some ascending pathways in the brainstem reticular formation of the cat. In: Reticular Formation of the Brain, edited by H. H. Jasper, L. D. Proctor, R. S. Knighton, W. C. Noshay, and R. T. Costello. Boston: Little, Brown, 1958, p. 3–30.
180. Norton, T. T. Receptive‐field properties of superior colliculus cells and development of visual behavior in kittens. J. Neurophysiol. 37: 674–690, 1974.
181. Oyster, C. W. The analysis of image motion by the rabbit retina. J. Physiol. London 199: 613–635, 1968.
182. Oyster, C. W., and H. B. Barlow. Direction‐selective units in rabbit retina: distribution of preferred directions. Science 155: 841–842, 1966.
183. Oyster, C. W., E. Takahishi, and J. Collewijn. Direction‐selective retinal ganglion cells and control of optokinetic nystagmus in the rabbit. Vision Res. 12: 183–193, 1972.
184. Palmer, L. A., and A. C. Rosenquist. Visual receptive fields of single striate cortical units projecting to the superior colliculus in the cat. Brain Res. 67: 27–42, 1974.
185. Pasik, T., P. Pasik, and M. B. Bender. The superior colliculi and eye movements. Arch. Neurol. Chicago 15: 420–436, 1966.
186. Peterson, B. W., M. E. Anderson, and M. Filion. Responses of ponto‐medullary reticular neurons to cortical, tectal and cutaneous stimuli. Exp. Brain Res. 21: 19–44, 1974.
187. Peterson, B. W., M. E. Anderson, M. Filion, and V. J. Wilson. Responses of reticulospinal neurons to stimulation of the superior colliculus. Brain Res. 33: 495–498, 1971.
188. Powell, E. W., and J. B. Hatton. Projections of the inferior colliculus in the cat. J. Comp. Neurol. 136: 183–192, 1969.
189. Precht, W., P. C. Schwindt, and P. C. Magherini. Tectal influences on cat ocular motoneurons. Brain Res. 82: 27–40, 1974.
190. Raczkowski, D., and I. T. Diamond. Cells of origin of several efferent pathways from the superior colliculus in Galago senegalensis Brain Res. 146: 351–357, 1978.
191. Raybourn, M. S., and E. L. Keller. Colliculoreticular organization in primate oculomotor system. J. Neurophysiol. 40: 861–878, 1977.
192. Rinvik, E., I. Grofova, and O. P. Ottersen. Demonstration of nigrotectal and nigroreticular projections in the cat by axonal transport of proteins. Brain Res. 112: 388–394, 1976.
193. Rioch, D. McK. Studies on the diencephalon of carnivora. I. Nuclear configuration of the thalamus, epithalamus and hypothalamus of dog and cat. J. Comp. Neurol. 49: 1–120, 1929.
194. Robinson, D. A. A method of measuring eye movement using a scleral search coil in a magnetic field. IEEE Trans. Bio‐Med. Electron. 10: 137–145, 1963.
195. Robinson, D. A. Oculomotor unit behavior in the monkey. J. Neurophysiol. 33: 393–404, 1970.
196. Robinson, D. A. Eye movements by collicular stimulation in the alert monkey. Vision Res. 12: 1795–1808, 1972.
197. Robinson, D. A. The effect of cerebellectomy on the cat's vestibulo‐ocular integrator. Brain Res. 71: 195–207, 1974.
198. Robinson, D. A. Adaptive gain control of vestibulo‐ocular reflex by the cerebellum. J. Neurophysiol. 39: 954–969, 1976.
199. Robinson, D. A., Control of eye movements. In: Handbook of Physiology. The Nervous System, edited by J. M. Brookhart and V. B. Mountcastle. Bethesda, MD: Am. Physiol. Soc., 1981, sect. 1, vol. II, chapt. 28, p. 1275–1320.
200. Robinson, D. A., and A. F. Fuchs. Eye movements evoked by stimulation of frontal eye fields. J. Neurophysiol. 32: 637–648, 1969.
201. Robinson, D. L., and C. D. Jarvis. Superior colliculus neurons studied during head and eye movements of the behaving monkey. J. Neurophysiol. 37: 533–540, 1974.
202. Robson, J. A., and W. C. Hall. Projections from the superior colliculus to the dorsal lateral geniculate nucleus of the grey squirrel (Sciurus carolinensis) Brain Res. 113: 379–385, 1976.
203. Ron, S., and D. A. Robinson. Eye movements evoked by cerebellar stimulation in the alert monkey. J. Neurophysiol. 36: 1004–1022, 1973.
204. Rosenquist, A. C., and L. A. Palmer. Visual receptive field properties of cells of superior colliculus after cortical lesions in the cat. Exp. Neurol. 33: 629–652, 1971.
205. Roucoux, A., and M. Crommelinck. Eye movements evoked by superior colliculus stimulation in the alert cat. Brain Res. 106: 349–363, 1976.
206. Roucoux, A., D. Guitton and M. Crommelinck. Stimulation of the superior colliculus in the alert cat. II. Eye and head movements evoked when the head is unrestrained. Exp. Brain Res. 39: 74–85, 1980.
207. Schaefer, K.‐P. Mikroableitungen im Tectum opticum des frei beweglichen Kaninchens. Ein experimenteller Beitrag zum Problem des Bewegungssehens. Arch. Psychiatr. Nervenkr. 208: 120–146, 1966.
208. Schaefer, K.‐P. Unit analysis and electrical stimulation in the optic tectum of rabbits and cats. Brain Behav. Evol. 3: 222–240, 1970.
209. Schiller, P. H. The discharge characteristics of single units in the oculomotor and abducens nuclei of the unanesthetized monkey. Exp. Brain Res. 10: 347–362, 1970.
210. Schiller, P. H. The effect of superior colliculus ablation on saccades elicited by cortical stimulation. Brain Res. 122: 154–156, 1977.
211. Schiller, P. H., and F. Koerner. Discharge characteristics of single units in the superior colliculus of the alert rhesus monkey. J. Neurophysiol. 34: 920–936, 1971.
212. Schiller, P. H., and J. Malpeli. Properties and tectal projections of monkey retinal ganglion cells. J. Neurophysiol. 40: 428–445, 1977.
213. Schiller, P. H., J. G. Malpeli, and S. J. Schein. Composition of the geniculostriate input to superior colliculus of the rhesus monkey. J. Neurophysiol. 42: 1124–1133, 1979.
214. Schiller, P. H., and M. Stryker. Single‐unit recording and stimulation in superior colliculus of the alert rhesus monkey. J. Neurophysiol. 35: 915–924, 1972.
215. Schiller, P. H., M. Stryker, M. Cynader, and N. Berman. Response characteristics of single cells in the monkey superior colliculus following ablation or cooling of visual cortex. J. Neurophysiol. 37: 181–194, 1974.
216. Schiller, P. H., S. True, and J. Conway. The effects of frontal eye field and superior colliculus ablations on visually triggered eye movements. Science 206: 590–592, 1979.
217. Schneider, G. E. Contrasting visuomotor functions of tectum and cortex in the golden hamster. Psychol. Forsch. 31: 52–62, 1967.
218. Schneider, G. E. Mechanisms of functional recovery following lesions of visual cortex or superior colliculus in neonate and adult hamsters. Brain Behav. Evol. 3: 295–323, 1970.
219. Schneider, G. E. Competition for terminal space in formation of abnormal retinotectal connections, and a functional consequence (Abstract). Anat. Rec. 169: 420, 1971.
221. Neurosciences Research Symposium Summaries, edited by F. O. Schmitt. Cambridge, MA: MIT Press, 1973, vol. 7, p. 287–290.
222. Schneider, G. E. Early lesions of superior colliculus: factors affecting the formation of abnormal retinal projections. Brain Behav. Evol. 8: 73–109, 1973.
223. Schneider, G. E., and W. J. H. Nauta. Formation of anomalous retinal projections after removal of the optic tectum in the neonate hamster (Abstract). Anat. Rec. 163: 258, 1969.
224. Sherk, H. The Circuit Formed by the Cat's Parabigeminal Nucleus and Superior Colliculus. Cambridge: Massachusetts Inst. of Technol., 1978. Ph.D. thesis.
225. Sherman, S. M. Visual field defects in monocularly and binocularly deprived cats. Brain Res. 49: 25–45, 1973.
226. Sherman, S. M. Visual fields of cats with cortical and tectal lesions. Science 185: 355–357, 1974.
227. Sparks, D. L. Response properties of eye‐movement related neurons in monkey superior colliculus. Brain Res. 90: 147–152, 1975.
228. Sparks, D. L. Functional properties of neurons in the monkey superior colliculus: coupling of neuronal activity and saccade onset. Brain Res. 156: 1–16, 1978.
229. Sparks, D. L., R. Holland, and B. L. Guthrie. Size and distribution of movement fields in the monkey superior colliculus. Brain Res. 113: 21–34, 1976.
230. Sparks, D. L., and J. G. Pollack. The neural control of saccadic eye movements: the role of the superior colliculus. In: Eye Movements, edited by F. J. Bajandas and B. A. Brooks. New York: Plenum, 1977, p. 179–219.
231. Sperry, R. W. Reestablishment of visuomotor coordination by optic nerve regeneration (Abstract). Anat. Rec. 84: 470, 1942.
232. Sperry, R. W. Visuomotor coordination in the newt (Triturus viridescens) after regeneration of the optic nerve. J. Comp. Neurol. 79: 33–55, 1943.
233. Sperry, R. W. Optic nerve regeneration with return of vision in anurans. J. Neurophysiol. 7: 57–69, 1944.
234. Sperry, R. W. Patterning of central synapses in regeneration of the optic nerve in teleosts. Physiol. Zoology 21: 351–361, 1948.
235. Sperry, R. W. Mechanisms of neural maturation. In: Handbook of Experimental Psychology, edited by S. S. Stevens. New York: Wiley, 1951, p. 236–280.
236. Sperry, R. W. Chemoaffinity in the orderly growth of nerve fiber patterns and connections. Proc. Natl. Acad. Sci. USA 50: 703–710, 1963.
237. Sprague, J. M. Interaction of cortex and superior colliculus in mediation of visually guided behavior in the cat. Science 153: 1544–1547, 1966.
238. Sprague, J. M. The superior colliculus and pretectum in visual behavior. Invest. Ophthalmol. 11: 473–482, 1972.
239. Sprague, J. M., G. Berlucchi, and A. DiBerardino. The superior colliculus and pretectum in visually guided behavior and visual discrimination in the cat. Brain Behav. Evol. 3: 285–294, 1970.
240. Sprague, J. M., G. Berlucchi, and G. Rizzolatti. The role of the superior colliculus and pretectum in vision and visually guided behavior. In: Handbook of Sensory Physiology. Central Processing of Vision Information. Visual Centers in the Brain, edited by R. Jung. New York: Springer‐Verlag, 1973, vol. 7, pt. 3B, p. 27–201.
241. Sprague, J. M., M. Levitt, K. Robson, C. M. Liu, E. Stellar, and W. W. Chambers. A neuroanatomical and behavioral analysis of the syndromes resulting from midbrain lemniscal and reticular lesions in the cat. Arch. Ital. Biol. 101: 225–295, 1963.
242. Sprague, J. M., and T. Meikle. The role of the superior colliculus in visually guided behavior. Exp. Neurol. 11: 115–146, 1965.
243. Stein, B. E. Nonequivalent visual, auditory, and somatic corticotectal influences in cat. J. Neurophysiol. 41: 55–64, 1978.
244. Stein, B. E., and M. O. Arigbede. Unimodal and multimodal response properties of neurons in the cat's superior colliculus. Exp. Neurol. 36: 179–196, 1972.
245. Stein, B. E., S. J. Goldberg, and H. P. Clamann. The control of eye movements by the superior colliculus in the alert cat. Brain Res. 118: 469–474, 1976.
246. Stein, B. E., E. Labos, and L. Kruger. Determinants of response latency in neurons of superior colliculus in kittens. J. Neurophysiol. 36: 680–689, 1973.
247. Stein, B. E., E. Labos, and L. Kruger. Long‐lasting discharge properties of neurons in kitten midbrain. Vision Res. 13: 2615–2619, 1973.
248. Stein, B. E., E. Labos, and L. Kruger. Sequence of changes in properties of neurons of superior colliculus of the kitten during maturation. J. Neurophysiol. 36: 667–679, 1973.
249. Stein, B. E., B. Magalhaes‐Castro, and L. Kruger. Relationship between visual and tactile representations in cat superior colliculus. J. Neurophysiol. 39: 401–419, 1976.
250. Sterling, P. Receptive fields and synaptic organization of the superficial gray layer of the cat superior colliculus. Vision Res. 11: (Suppl. 3) 309–328, 1971.
251. Sterling, P. Quantitative mapping with the electron microscope: retinal terminals in superior colliculus. Brain Res. 54: 347–354, 1973.
252. Sterling, P., and B. G. Wickelgren. Visual receptive fields in the superior colliculus of the cat. J. Neurophysiol. 32: 1–15, 1969.
253. Sterling, P., and B. G. Wickelgren. Function of the projection from the visual cortex to the superior colliculus. Brain Behav. Evol. 3: 210–218, 1970.
254. Stewart, D. L., D. Birt, and L. C. Towns. Visual receptive‐field characteristics of superior colliculus neurons after cortical lesions in the rabbit. Vision Res. 13: 1965–1977, 1973.
255. Stone, J., and Y. Fukuda. The naso‐temporal division of the cat's retina re‐examined in terms of Y‐, X‐ and W‐cells. J. Comp. Neurol. 155: 377–394, 1974.
256. Stone, J., and Y. Fukuda. Properties of the cat retinal ganglion cells: a comparison of W‐cells with X‐ and Y‐cells. J. Neurophysiol. 37: 722–748, 1974.
257. Stoney, S. D., Jr., W. D. Thompson, and H. Asanuma. Excitation of pyramidal tract cells by intracortical microstimulation: effective extent of stimulating current. J. Neurophysiol. 31: 659–669, 1968.
258. Straschill, M., and K.‐P. Hoffmann. Relationship between localization and functional properties of movement‐sensitive neurons of the cat's tectum opticum. Brain Res. 8: 382–385, 1968.
259. Straschill, M., and K.‐P. Hoffmann. Functional aspects of localization in the cat's tectum opticum. Brain Res. 13: 274–283, 1969.
260. Straschill, M., and K.‐P. Hoffmann. Activity of movement sensitive neurons of the cat's tectum opticum during spontaneous eye movements. Exp. Brain Res. 11: 318–326, 1970.
261. Straschill, M., and P. Reiger. Optomotor integration in the colliculus of the cat. In: Cerebral Control of Eye Movement and Motion Perception, edited by J. Dichgans and E. Bizzi. Basel: Karger, 1972. p. 130–138.
262. Straschill, M., and P. Reiger. Eye movements evoked by local stimulation of the cat's superior colliculus. Brain Res. 59: 211–227, 1973.
263. Straschill, M., and F. Schick. Discharges of superior colliculus neurons during head and eye movements of the alert cat. Exp. Brain Res. 27: 131–141, 1977.
264. Stryker, M. P., and P. H. Schiller. Eye and head movements evoked by electrical stimulation of monkey superior colliculus. Exp. Brain Res. 23: 103–112, 1975.
265. Syka, J., and T. Radil‐Weiss. Electrical stimulation of the tectum in freely moving cats. Brain Res. 28: 567–572, 1971.
266. Székely, G., G. Sétáló, and G. Lázár. Fine structure of the frog's optic tectum: optic fibre termination layers. J. Hirnforsch 14: 189–225, 1973.
267. Terashima, S., and R. C. Goris. Tectal organization of pit viper infrared reception. Brain Res. 83: 490–494, 1975.
268. Tiao, Y.‐C., and C. Blakemore. Functional organization in the superior colliculus of the golden hamster. J. Comp. Neurol. 168: 483–504, 1976.
269. Toyama, K., K. Matsunami, and T. Ohno. Antidromic identification of association, commissural and corticofugal efferent cells in cat visual cortex. Brain Res. 14: 513–517, 1969.
270. Updyke, B. V. Characteristics of unit responses in superior colliculus of the Cebus monkey. J. Neurophysiol. 37: 896–909, 1974.
271. Victorov, I. V. Neuronal structure of superior colliculus in the cat. Arch. Anat. 2: 45–55, 1968.
272. Wartzok, D., and W. B. Marks. Directionally selective visual units recorded in optic tectum of the goldfish. J. Neurophysiol. 36: 588–604, 1973.
273. Wässle, H., W. R. Levick, and B. Cleland. The distribution of the alpha type of ganglion cells in the cat's retina. J. Comp. Neurol. 159: 419–438, 1975.
274. Westheimer, G. Mechanism of saccadic eye movements. AMA Arch. Ophthalmol. 52: 710–724, 1954.
275. Westheimer, G., and S. M. Blair. Synkinese der Augen‐ und Kopfbewegungen bei Hirnstammreizungen am wachen Macacus‐Affen. Exp. Brain Res. 24: 89–95, 1975.
276. Wickelgren, B. G., and P. Sterling. Influence of visual cortex on receptive fields in superior colliculus of the cat. J. Neurophysiol. 32: 16–23, 1969.
277. Wickelgren‐Gordon, B. Some effects of visual deprivation on the cat superior colliculus. Invest. Ophthalmol. 11: 460–466, 1972.
278. Wiesel, T. N., and D. H. Hubel. Single‐cell responses in striate cortex of kittens deprived of vision in one eye. J. Neurophysiol. 26: 1003–1017, 1963.
279. Wiesel, T. N., and D. H. Hubel. Comparison of the effects of unilateral and bilateral eye closure on cortical unit responses in kittens. J. Neurophysiol. 28: 1029–1040, 1965.
280. Wilson, M. E., and M. J. Toyne. Retino‐tectal and corticotectal projections in Macaca mulatta Brain Res. 24: 395–406, 1970.
281. Wolin, L. R., P. Massopust, Jr., and J. Meder. Differential color responses from the superior colliculi of squirrel monkeys. Vision Res. 6: 637–644, 1966.
282. Wurtz, R. H. Visual receptive fields of striate cortex neurons in awake monkeys. J. Neurophysiol. 32: 727–742, 1969.
283. Wurtz, R. H., and M. E. Goldberg. Activity of superior colliculus in behaving monkey. III. Cells discharging before eye movements. J. Neurophysiol. 35: 575–586, 1972.
284. Wurtz, R. H., and M. E. Goldberg. Activity of superior colliculus in behaving monkey. IV. Effects of lesions on eye movement. J. Neurophysiol. 35: 587–596, 1972.
285. Wurtz, R. H., and C. W. Mohler. Enhancement of visual responses in monkey striate cortex and frontal eye fields. J. Neurophysiol. 39: 766–772, 1976.
286. Wurtz, R. H., and C. W. Mohler. Organization of monkey superior colliculus: enhanced visual response of superficial layer cells. J. Neurophysiol. 39: 745–765, 1976.

References: V. 
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 V. 
 V. 
 V. 
 V. 
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