Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 © Aq Final Report SENSING OF REMOTE EM SOURCES (PHYSIOLOGICAL CORRELATES) By: RUSSELL TARG EDWIN MAY HAROLD PUTHOFF SRI International, Mento Park, California DAVID GALIN ROBERT ORNSTEIN Langley Porter Neuropsychiatric Institute, San Francisco, California Prepared for: NAVAL ELECTRONICS SYSTEMS COMMAND WASHINGTON, D.C. 20360 Attention: MR, JAMES FOOTE ELEX 03X CONTRACT NO00039-76-C-0077 333 Ravenswood Avenue Menlo Park, California 94025 U.S.A, (415) 326-6200 Cable: STANRES, Menlo Park TWX: 910-373-1246 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 Final Report Covering the Period November 1975 to October 1976 SENSING OF REMOTE EM SOURCES (PHYSIOLOGICAL CORRELATES) By: RUSSELL TARG EDWIN MAY HAROLD PUTHOFF SRI International, Mento Park, California DAVID GALIN ROBERT ORNSTEIN Langley Porter Neuropsychiatric Institute, San Francisco, California Prepared for: NAVAL ELECTRONICS SYSTEMS COMMAND WASHINGTON, D.C. 20360 Attention: MR. JAMES FOOTE ELEX 03X CONTRACT NO00039-76-C-0077 SRI Project 4540 Approved by: ROBERT S. LEONARD, Director Radio Physics Laboratory DAVID D. ELLIOTT, Executive Director Systems Research and Analysis Division a A a. f/f ins 333 Ravenswood Avenue + Menlo Park, California 94025 + U.S.A. For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 international ANDKOVe4 aS a Rn
Approved For Release 2000/08/07 : CIA-RDP96-00788R0013003500071 -0 UNCLASSIFIED A SECURITY CLASSIFICATION OF THIS PAGE (When Data Entered) REPORT DOCUMENTATION PAGE 1. REPORT NUMBER 2. GOVT ACCESSION NO. | 3. RECIPIENT'S CATALOG NUMBER 4. TITLE (and Subtitie) 6. TYPE OF REPORT & PERIOD COVERED Final Report SENSING OF REMOTE EM SOURCES (PHYSIOLOGICAL Covering the period November CORRELATES) 1975 to October 1976 6. PERFORMING ORG. REPORT NUMBER SRI Project 4540 8. CONTRACT OR GRANT NUMBER(s) 7, AUTHOR(s) Russell Targ Edwin May Harold Puthoff David Galin Robert Ornstein Contract N00039-76-C-0077 5. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT, PROJECT, TASK AREA & WORK UNIT NUMBERS SRI International 333 Ravenswood Avenue Menlo Park, California 94025 42. REPORT DATE 13. NO. OF PAGES 11. CONTROLLING OFFICE NAME AND ADDRESS A April 1978 46 ELEX 03X P 15, SECURITY CLASS, (of this report Naval Electronics Systems Command repor Washington, D.C. 20360 UNCLASSIFIED Ta, MONITORING AGENCY NAME & ADDRESS (if diff. from Controlling Office) 158. DEGLASSIFICATION /DOWNG RADING SCHEDULE 16. DISTRIBUTION STATEMENT (of this report) 17, DISTRIBUTION STATEMENT (of the abstract entered In Block 20, if different from report) 18. SUPPLEMENTARY NOTES 19. KEY WORDS (Continue on reverse side if necessary and identify by block number) EEG Eleczrophysiology Electroencephlograph Psychoenergetics Brainwaves Subliminal perception 20. ABSTRACT (Continue on reverse side If necessary and identify by block number) We have investigated the ability of certain individuals to perceive remote (faint) stimuli at a noncognitive level of awareness. To investigate this we have looked for systematic changes in a subject's brainwave (EEG) production occurring at the same time as light flashes are generated on a random schedule in a remote.laboratory. We have found in this investigation that statistically significant correlations do appear to exist between the times of light flashes and the times of brainwave alterations, However, we consider these data to be DD en 1473 UNCLASSIFIED EDITAON FOV ERY ABE REISS] 2000/08/07 : CIARDP96.00788R001300350001.0..
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 CONTENTS LIST OF ILLUSTRATIONS . . oe eee LIST OF TABLES . .« « « «© « © «© # © PART ONE: SRI ANALYSIS . . 4 « « « I INTRODUCTION AND SUMMARY. . « If PILOT STUDY AT SRI. ..... III TECHNICAL APPROACH . . .« 6 « « IV DISCUSSION . . « «© « «© © «© « » PART TWO: LANGLEY PORTER ANALYSIS I INTRODUCTION . . 2. © «© «© «© © « II REANALYSIS OF PREVIOUS DATA . III FIRST EXPERIMENT AT LANGLEY PORTER: OF SRI STUDY . « © « «© © © o « IV SECOND EXPERIMENT AT LANGLEY PORTER; RE FINEMENT *o © @ @# @ ° e . e oe V DISCUSSION . . 2. 6 « © © w@ ow ATTEMPTED ATTEMPTED REPLICATION APPENDIX: OPTICAL ISOLATION EXPERIMENTS AT LANGLEY PORTER. . . REFERENCES . 4 6 «© © © © © @ wo Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 iv vi 11 14 16 17 20 25 32 34 40
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 ILLUSTRATIONS PART ONE 1 Typical Power Spectrum Averaged Over Twenty 8-s Epoch for One Subject . . . « «s+ © « Pr ee ee er ee 5 2 Schematic of the Remote-Sensing EEG Experiment .... +s 8 APPENDIX A-1 Floor Plan and Apparatus for Light-Leakage Measurements . 2.6 « « « « « Pe rr er 37 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 TABLES PART ONE 1 Summary of Results of the Replication Experiments Showing Power Means and Statistical Results for the Various Experimental Conditions . . 2. 1. 6 « « 2 «© «© # eo « 12 PART TWO 1 Reanalysis of Dr. Rebert's SRI Tapes Played Through the Langley Porter EEG Alpha Analyzer . . 1. 6 «+ «© «© © es © © @ 18 2 First Experiment at Langley Porter: Means of Summed EEG Alpha in Relative Power Units . . 2. 6 + 6+ 6 see ewes 25 3 Second Experiment at Langley Porter: All Trials, Sender vs No Sender ry e e e e e e e e « e e e e cd o 7 7 e e e 28 4 Second Experiment at Langley Porter: Guess Trials Only, Sender vs No Sender... 2 ee oe © © © © © ew oo 29 5 Second Experiment at Langley Porter: Pass Trial Means .. . 30 6 Second Experiment at Langley Porter: Correct Guess Tr La 1 Means ° eo e e e o °° e e CJ . e ° ¢ e e * e e e e. . ° . e 31 vi Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
nn ll ll hlUrlllhelhnllUhelUrrerl rele eee Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 PART ONE: SRI ANALYSIS Russell Targ Edwin May Harold Puthoff SRI International Menlo Park, California Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 I INTRODUCTION AND SUMMARY A. Introduction The objective of the program reported here was to investigate the characteristics of, and, if possible, determine the mechanisms responsible for, the coupling of remote electromagnetic stimuli to human detection modalities, utilizing physiological response (specifically, EEG) as an indication of such registration. In a number of laboratories evidence has been obtained indi- cating the existence of an as-yet-unidentified channel wherein informa- tion is coupled from remote electromagnetic stimuli to the human nervous system, as indicated by physiological responses, This coupling can be measured, even though overt subject responses such as verbalizations or pressing of a key provide no evidence for such information transfer. Physiological measures have included plethysmographic response! ~ and EEG activity.”'* Kamiya, Lindsley, Pribram, Silverman, Walter, and others have suggested that a whole range of EEG responses such as evoked poten- tials (EPs), spontaneous EEG, and the contingent negative variation (CNV) might be sensitive indicators of the detection of remote stimuli not mediated by usual sensory processes.* A pilot study was therefore undertaken at SRI to determine whether EEG activity could be used as a reliable indicator of informa- tion transmission between an isolated subject and a remote stimulus. Following earlier work of others, we assumed that perception could be indicated by such a measure even in the absence of verbal or other overt indicators. To aid in selecting a stimulus, we noted that Silverman and Buchsbaum attempted, without success, to detect EP changes in a subject in response to a single stroboscopic flash stimulus per trial observed by another subject.® Kamiya suggested that because of the unknown temporal characteristic of the information channel, it might be more ¥ "References are listed at the end of this report. Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 appropriate to use repetitive bursts of light to increase the probability of detecting information transfer.® Therefore, in our study we chose to use repetitive light bursts as stimuli.” ~° B, Summary In Section II we describe the pilot study conducted at SRI, which led to the present investigation, It was in this study that we obtained our first indication that remote light-flash stimuli could cause systematic changes in the observed EEG production of an individual shielded against direct perception of the light. Section III presents the technical approach employed in the most recent investigations. This includes a description of the battery- operated strobe light equipment, shielding precautions, experimental protocol, and finally data analysis. Section IV presents a detailed discussion of the results from all phases of the study. Part Two of this report is the technical evaluation prepared for us by our independent consultants at Langley Porter Neuropsychiatric Institute. In their report they analyze the present investigation from the point of view of practicing perceptual psychologists. In the Appendix to this report we describe the optical measure- ments made to determine the extent of possible light leakage from the stimulus room to the subject room. Il PILOT STUDY AT SRI In the design of the study it was assumed that the application of remote stimuli might result in responses similar to those obtained under conditions of direct stimulation. For example, when normal sub- jects are stimulated with a flashing light, their EEG typically shows a decrease in the amplitude of the resting rhythm and a driving of the brain waves at the frequency of the flashes.*° We hypothesized that if we stimulated one subject in this manner (a putative sender), the EEG of another subject in a remote room with no flash present (a receiver) 3 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
‘Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001 -0 might show changes in alpha (8 to 13 Hz) activity, and possibly EEG driving similar to that of the sender, either by means of coupling to the sender's EEG, or by coupling directly to the stimulus. We informed our subject that at certain times a light was to be flashed in a sender's eyes in a distant room, and if the subject per- ceived that event, consciously or unconsciously, it might be evident from changes in his EEG output, The receiver was seated in a visually opaque, acoustically and electrically shielded double-walled steel room located approximately 7 m from the sender's room. We initially worked with four female and two male volunteer sub- jects. These were designated "receivers.'' The senders were either other subjects or the experimenters. We decided beforehand to run one or two sessions of 36 trials with each subject in this selection pro- cedure, and to do a more extensive study with any subject whose results were positive. A Grass PS-2 photostimulator placed about 1 m in front of the sender was used to present flash trains of 10 s duration. The receiver's EEG activity from the occipital region (0z), referenced to linked mastoids, was amplified with a Grass 5P-1 preamplifier and associated driver ampli- fier with a bandpass of 1 to 120 Hz. The EEG data were recorded on magnetic tape with an Ampex SP300 recorder, On each trial, a tone burst of fixed frequency was presented to both sender and receiver and was followed in one second by either a 10-s train of flashes or a null flash interval presented to the sender, Thirty-six such trials were given in an experimental session, consisting of 12 null trials--no flashes following the tone--12 trials of flashes at 6 flashes per second (fps) and 12 trials of flashes at 16 fps, all randomly inter- mixed, determined by entries from a table of random numbers. Each of the trials consisted of an 1l-s EEG epoch, The last 4 s of the epoch were selected for analysis to minimize the desynchronizing action of the warning cue. This 4-s segment was subjected to Fourier analysis on a LINC 8 computer. Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 Spectrum analyses gave no evidence of EEG driving in any receiver, although in control runs the receivers did exhibit driving when physi- cally stimulated with the flashes. But of the six subjects studied initially, one subject showed a consistent alpha blocking effect. We therefore undertook further study with this subject. We note that of our six subjects, this one had the most monochromatic EEG spectrum. Figure 1 shows a typical occipital EEG spectrum of this subject. 6 5 ‘ N rT 4 N > a | 3 c w 5 2 a 1 0 2 4 - 6 8 10 12 14 16 FREQUENCY — Hz FIGURE 1 TYPICAL POWER SPECTRUM AVERAGED OVER TWENTY 8-SECOND EPOCHS FOR ONE SUBJECT Data from seven sets of 36 trials each were collected from this subject on three separate days. This comprised all the data collected to date with this subject under the test conditions described above, The alpha band was identified from average spectra; then scores of average power and peak power were obtained from individual trials and subjected to statistical analysis, The final analysis showed that power values were less in the 16-fps case than in the 0-fps case (no light) in all seven sets of peak power measurements and in six out of seven average-power measurements, Siegel's two-tailed t approximation to the nonparametric randomi- zation test?! was applied to the data from all sets, which included two Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 sessions in which the sender was removed, Average power during trials associated with the occurrence of 16 fps was significantly less than when there were no flashes (t = 2.09, df = 118, p< 0.04). The second measure, peak power, was also significantly less in the 16-fps conditions than in the null condition (t = 2.16, df = 118, p< 0.03). The response in the 6-fps condition was in the same direction as that associated with 16 fps, but the effect was not statistically significant. As part of the experimental protocol for each trial, the subject was asked to indicate conscious assessment as to which stimulus was generated. The guess was registered by the subject via one-way tele- graphic communication. An analysis of these guesses has shown them to be at chance, indicating the absence of any supraliminal cueing, so arousal as evidenced by significant alpha blocking occurred only at the noncognitive level of awareness, Several control procedures were undertaken to determine if these results were produced by system artifacts or by subtle cueing of the subject. Low-level recordings were made from saline of 12-kilohm resistance in place of the subject, with and without the introduction of 10-Hz, 50-uV signals from a battery-operated generator. The standard experimental protocol was adhered to and spectral analysis of the results were carried out. There was no evidence in the spectra associated with the flash frequencies, and the 10-Hz signal was not perturbed. In another control procedure a five-foot pair of leads was draped across the subject's chair (subject absent). The leads were connected to one input of a C.A.T. 400C “averager.'' Two-second sweeps, triggered at onset of the tone, were taken once every 13 s for approximately two hours, for about 550 samples. No difference in noise level between the fore-period and the onset of flicker was observed. III TECHNICAL APPROACH A. Replication Studies at Langley Porter The main effort of the program was directed toward replication, by an independent laboratory, of the original SRI study of EEG response 6 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 to remote strobe-light stimuli. Arrangements for replication were made with the Langley Porter Neuropsychiatric Institute, University of California Medical Center, San Francisco, Dr. David Galin and Dr. Robert Ornstein were our principal consultants. As a special precaution against the possibility of system artifacts in the form of electromagnetic pickup from the strobe-light discharge or associated electronic equipment (e.g., through the power lines), SRI developed an entirely-battery-operated package for use as a stimulus generator for the EEG experimentation. It consists of a battery-driven incandescent lamp, whose CW output passes through a mechanical chopper continuously driven by a battery-powered motor as shown in Figure 2. A 10-Hz timing generator (computer triggered) con- trols the generation of a 1-kHz warning tone 2 s before onset of the experimental period, and also drives a locking circuit that determines the presence or absence of the 10-s light stimulus, again all battery operated. Thus everything on the left of the diagram of Figure 2 is battery operated and therefore independent of the power-line system. Further, the arc-discharge strobe lamp was replaced by an incandescent lamp to eliminate the possibility of direct subliminal pickup of audio or electrical signals from possible transients associated with the arc discharge or associated electronics. Finally, the possibility of artifact due to light-leakage between the lamp (stimulus) and subject (receiver) was investigated by the use of a photomultiplier in conjunction with a phase-sensitive detection system. The results, presented in detail in the Appendix, indicated no light leakage between the rooms in question to the limit of our measurement capability (125 dB attenuation). 1, Description of the EEG Processor A hardware single-channel power spectrum analyzer was constructed from a commercial bandpass filter with corner frequencies of 9.0 and 12.0 Hz, and a roll-off 48 dB down at 8,0 and 13.0 Hz. Analog multipliers convert the filter output to a signal proportional to in-band Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 LNAWidadXS 53a ONISNSS SLOWSY = @ AYNDIS Lt-OvSr-VS WOOY C3073 IHS I 4 (C 5 3NOL ONINYYM 3a 7 S T3NNVHO NIALL re) Co) O re) ? @®®@ ve Zt STANNVHD 933 G WLLL LLL LL Wi0L HOVS 3HO4zS P95 Z YOLVYAN3ZD ANOL 2H4 t “yy61) GOl3d HOLVYANID ONIAGL ZH OL (~}—> dV 43443N@ dAV 1 SIOYLNOD LINDYID ONENDOT °95 OL AISNONNILNOD SNNY HOLOW YW3ddOHD LHOM Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 power. To confirm that this system is equivalent to the standard FFT analysis used in the pilot study, the analog data on the entire pilot study were reanalyzed, and the result was found to be consistent with the earlier analysis. 2. Experimental Protocol Each experimental session consisted of 40 trials, 20 each for the 0-fps (no light) and ‘the 16-fps case of the remote light stimulus. A trial is defined as a warning tone followed by a 10-s period consisting of a 2-s wait, and two 4-s data-collection periods. The trial rate was one trial every 30 + 1s. The trial sequence was randomized subject to the following conditions: (1) in each group of 10 trials there were equal numbers of each condition, and (2) no more than three in a row of a single type were allowed, Seven 40-trial sequences were made according to this prescription and recorded separately on audio tape. During the session, trials were generated from one of these tapes chosen blind to the experimenters so that the sequence was unknown to them, As in standard EEG protocol, and in accordance with preestablished criteria, certain trials were deleted after the session for three reasons only: artifact, logic circuit failure, or abnormal EEG power. If a trial was rejected, a trial of the opposite stimulus condition was rejected at random from the particular set of 10 trials in question. If more than 10 trials of a given type were rejected from a session, the entire session was deleted. (This occurred twice in each of the two experiments of the study, described below. ) Six channels of EEG and one logic channel taken from the sequence tape were recorded on a multiplexed FM analog tape recorder. The logic on the tape differentiated the trials as to flashing and nonflashing conditions, In pretesting the equipment, we ran the experiment using unselected subjects such as laboratory personnel, in order to test the adequacy of the experiment and to determine whether there were any correlated electronic or mechanical discharges from the apparatus, In Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 20 sessions of data acquisition, of 40 each (800 trials) there were no significant differences between the null and 16-Hz conditions. The absence of differences can also be taken as a demonstration of the non- responsiveness of the unselected subjects, B. Results Using the above protocol, two experiments were conducted in the course of the study, the first consisting of twelve sessions, the second, fourteen, For half of the twelve sessions in the initial experi- ment, the subject was asked to press a button when she felt the light was flashing. For the six sessions (105 trials each for the O- and 16-fps conditions) when she was not asked to overtly indicate her feelings about the light, there was a slight decrease of in-band EEG power measured over the left occipital region of the brain. For the six sessions (107 trials each for the O- and 16-fps conditions) when she was asked to respond overtly, there was a significant decrease of in-band EEG power (p < 0.037, using an F ratio test derived from a two-way analysis of variance). In considering the experiment as consisting of the combined 212 trials in each stimulus condition regardless of the overt response contingency, we find a statistically significant decrease in in-band EEG power (p < 0.011, using F ratio test as above). During the second experiment of fourteen sessions, three months later, a different contingency was added to determine if a "sender" was necessary to produce the effect we had observed earlier, For a given session, a random procedure (with equal trials) was used to determine if a person (called the "sender'' person) would be looking at the photo- simulator, There was no one present with the photo-stimulator otherwise. For the 7 "non-sender' sessions (121 trials each for the O0- and 16-fps conditions) we find a statistically significant increase of in-band EEG power measured over the mid-occipital region of the brain (p < 0.039 using an F ratio test as above). During the 7 "sender" sessions (123 trials in each stimulus condition) there was a slight increase of in- band EEG power. When all 244 trials were analyzed, regardless of "sender" condition, there was a statistically significant increase of 10 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 in-band EEG power (p < 0.008 using an F ratio test as above), and there was no significant difference found between ''sender" and "no-sender" conditions. For both experiments, we considered in-band EEG power for the QO-to-4«s and 4-to-8-s time periods independently, to determine if the effects were time dependent. Although some of these isolated subinter- vals were statistically significant, no systematic relationship emerged, Thus the effect appears to be cumulative over the 8s, The 0-to-8-s results are summarized in Table l. IV. DISCUSSION Although our pilot experiment and the two replication studies all showed significant changes in EEG production correlated with the presence or absence of a remote light stimulus, the sign of the systematic change in power in the third study was opposite to that of the first two. We therefore undertook a detailed frequency analysis of the EEG data tapes from the last two experiments, since the pilot experiment had already been subjected to fast-Fourier-transform (FFT) analysis. We conjectured that the observed power change in these experiments might be the result of a very small frequency shift, which could become translated into a large amplitude change due to discriminator action of the alpha-band filter. In a chapter on alpha blocking, Kooi, in his Fundamentals of Electroencephalography says, for example, "..,attentiveness is associated ‘with a reduction in amplitude and an increase in average frequency of spontaneous cerebral potentials.... The center frequency of the alpha rhythm may be influenced by the type of ongoing mental activity. Shifts in frequency may be highly consistent as two different tasks are per- formed alternately." As compared with the first experiment in which the average peak EEG power fell midband, the FFT analysis for the second experiment showed that the average peak EEG power occurred most often near 8 Hz, and thus fell slightly below the hardware summing window (+3 dB at 8.7-12.4 Hz), enhancing a possible discriminator effect. The FFT analysis further showed that there was an overall increase in fre- quency of peak power but the shift was statistically nonsignificant. ll Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
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Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 This slight shift of 0.11 Hz could possibly account for the observed power increase due to the highly nonlinear discriminator effects, In examining other portions of the spectrum for further effects, we found that systematic amplitude changes are highly dependent on the location in the frequency spectrum from which the power sum is taken, This is to be expected, since almost all EEG phenomena are known to be strongly frequency dependent. In the pilot study the frequency region for analysis was centered about the subject's dominant EEG output frequency, with bandpass deter- mined by the full-width ten-percent power points, In the two replication studies we used hardware filters in this same frequency. FFI analysis showed clearly that if other filter bands had been chosen, significant correlations would not have been found in some cases. Thus, although our filter selection was made before the collection of any data, other experimenters might have reasonably chosen other criteria for frequency selection, Therefore, although we have found statistically significant evidence for EEG correlates to remote light flash stimuli in all three experiments, we consider these data to be only suggestive, with a defini- tive result requiring further experimentation. In particular, further analysis techniques would have to be developed before any putative EEG effect could be considered as part of an information transmission/ processing channel. We wish to acknowledge the valuable contributions made to this project by SRI consultant Mr. David B, Hurt, who designed and constructed the battery powered light stimulator and logic elements used in the latter two phases of the program. 13 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
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Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 Final Report on: FEG STUDIES OF RESPONSES TO REMOTE STIMULATION SRI International Subcontract No. 14157 SRI Consultants David Galin, M.D. Robert Ornstein, Ph.D. Langley Porter Institute University of California Medical Center San Francisco, California 94143 15 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0
Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0 SEALED WINDOW SUBJECT ROOM PHOTO TUBE RCA 7265 HV SEALED DOOR PHASE- SIGNAL CHART SENSITIVE RECORDER DETECTOR REFERENCE IN SEALED CONTROL ROOM DOOR HALLWAY SEALED DOOR REFERENCE PHOTODIODE CHOPPER STIMULUS ROOM FIGURE A-1 FLOOR PLAN AND APPARATUS FOR LIGHT-LEAKAGE MEASUREMENTS 37 Approved For Release 2000/08/07 : CIA-RDP96-00788R001300350001-0