It is generally supposed that there is a single, hierarchically organized pathway dedicated to
form processing, in which complex forms are elaborated from simpler ones, beginning with …

Many Gestalt phenomena have been described in terms of perception of a whole being not
equal to the sum of its parts. It is unclear how these phenomena emerge in the brain. We …

We here extend and complement our earlier time-based, magneto-encephalographic
(MEG), study of the processing of forms by the visual brain (Shigihara and Zeki,) with a …

This article analyzes computational properties that clarify why the parallel cortical systems
V1→ V2, V1→ MT, and V1→ V2→ MT exist for the perceptual processing of static visual …

Although a great deal is known about the early sensory and the later, perceptual, stages of
visual processing, far less is known about the nature of intermediate representational units …

Why does our visual system fail to reconstruct reality, when we look at certain patterns?
Where do Geometrical illusions start to emerge in the visual pathway? How far should we …

It is our fortune that misperceptions of the world are very rare. Only in highly contrived
laboratory settings do they occur regularly; or in very rare human cases do they show up …

Visual perception involves the grouping of individual elements into coherent patterns that
reduce the descriptive complexity of a visual scene. The physiological basis of this …

In this thesis, I describe a quantitative model that accounts for the circuits and computations
of the feedforward path of the ventral stream of visual cortex. This model is consistent with a …

Naturalistic textures with an intermediate degree of statistical regularity can capture key
structural features of natural images. V2 and later visual areas are sensitive to these …