Separate processing dynamics for texture elements, boundaries and surfaces in primary visual cortex of the macaque monkey.

Investigated the temporal aspects of neuronal responses in the primary visual cortex of macaque monkeys evoked by texture segregation figure-ground displays. Recordings from the monkey primary visual cortex show that in late components of the neural responses, a correlate of boundary formation was expressed, followed by a filling-in (also called coloring) between the edges. These data favor a model of segmentation where boundary formation initiates surface filling-in