Center-surround interactions in face perception

Weakened center-surround interactions in visual motion processing in schizophrenia.

Schizophrenia is often accompanied by a range of visual perception deficits, with many involving impairments in motion perception. The presence of perceptual abnormalities may impair neural processes that depend on normal visual analysis, which in turn may affect overall functioning in dynamic visual environments. Here, we examine the integrity of suppressive center-surround mechanisms in motio...

Center–surround interactions in visual motion processing during binocular rivalry

When each eye is confronted with a dissimilar stimulus, the percept will generally alternate between the two. This phenomenon is known as binocular rivalry. Although binocular rivalry occurs at locations where targets overlap spatially, the area surrounding rivalrous targets can modulate their dominance. Here we show that during binocular rivalry of oppositely moving gratings, a surrounding gra...

Response to motion in extrastriate area MSTl: center-surround interactions.

The medial superior temporal area of the macaque monkey extrastriate visual cortex can be divided into a dorsal medial (MSTd) and a lateral ventral (MSTl) region. The functions of the two regions may not be identical: MSTd may process optic flow information that results from the movement of the observer, whereas MSTl may be related more closely to processing visual motion related specifically t...

CENTER-SURROUND INTERACTIONS IN VISUAL MOTION PROCESSING By Duje Tadin

Binocular interactions in center-surround modulation: measurement and modeling

The responses of neurons in the primary visual cortex (V1) are modulated by stimuli outside their classical receptive fields. This same phenomenon, called center-surround modulation, has also been found in psychophysical studies in cases where a visual target’s detectability is influenced by its surroundings. However, whether the surround modulation occurs only after binocular integration (at o...