Processing of visual information in the functional field of view
Subtitle: the effects of stimulus, task, and motor response on latency and accuracy of performance.
Published: 2004
Language: eng
Number of pages: 115
Description: The aim of the present work was to examine the effect of perceptual load and target eccentricity on accuracy and latency of information processing. Perceptual load was altered in two studies by manipulating: (1) stimulus characteristics (set size, discriminability), (2) goal of the task (detection vs. identification), and (3) motor responses (ocular vs. manual, point vs. press). In support of the hypothesis, results from study 1 showed increased reaction times and decreased accuracy with increasing perceptual load. As predicted in study 2, manual press was initiated more slowly compared to pointing. In addition, pointing was initiated faster when accompanied by a saccade. In conclusion, perceptual load significantly affected information processing in the functional field of view (FFV). These results can be used to develop a clinical assessment tool for patients with visuospatial neglect who might have a general deficit in processing capacity.
Notes: Adviser: M. C. Verrier.

Thesis (M.Sc.)--University of Toronto, 2004.

Electronic version licensed for access by U. of T. users.

Source: Masters Abstracts International, Volume: 42-06, page: 2196.

MICR copy on microfiche (2 microfiches).