B.W. van Dijk
- Organization of contour from motion processing in primate visual cortex
- Vision Research
- Volume | Issue number
- 34 | 6
- Pages (from-to)
- Number of pages
- Document type
- Faculty of Social and Behavioural Sciences (FMG)
- Psychology Research Institute (PsyRes)
Investigated where contour from motion processing occurs by recording visual evoked potential (VEP) to a stimulus designed to signal the presence of relative motion-sensitive mechanisms. Two human Ss and 3 monkeys participated in the study and had VEP measured on the scalp and intracortically, respectively. Psychophysical testing, equivalent dipole estimation, and current source density analysis were also conducted. Relative motion specific response components were only elicited when human observers perceived contours from relative motion. Equivalent dipole source localization of the responses indicated the involvement of the primary visual cortex (PVC) in humans. This was corroborated by intracortical recordings in the awake monkey, where sources of the specific components are located within the supra- and infragranular layers of the PVC.
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