Figure-ground activity in primary visual cortex (V1) of the monkey matches the speed of behavioral response.
To look at an object its position in the visual scene has to be localized and subsequently appropriate oculo-motor behavior needs to be initiated. This kind of behavior is largely controlled by the cortical executive system, such as the frontal eye field. In this report, we analyzed neural activity in the visual cortex in relation to oculo-motor behavior. We show that in a figure-ground detection task, the strength of late modulated activity in the primary visual cortex correlates with the saccade latency. We propose that this may indicate that the variability of reaction times in the detection of a visual stimulus is reflected in low-level visual areas as well as in high-level areas.
Supèr
Hans
H
Vision & Cognition Group, The Netherlands Ophthalmic Research Institute, and Department of Psychology, University of Amsterdam, The Netherlands. h.super@ioi.knaw.nl
Spekreijse
Henk
H
Lamme
Victor A F
VA
D000818:Animals; D008253:Macaca mulatta; D011597:Psychomotor Performance / Q000502:physiology*; D011930:Reaction Time; D012438:Saccades / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology*