Hierarchical models of visual processing assume that global pattern recognition is
contingent on the progressive integration of local elements across larger spatial regions …

Extensive psychophysical and computational work proposes that the perception of coherent
and meaningful structures in natural images relies on neural processes that convert …

The integration of local elements to coherent forms is at the core of understanding visual
perception. Accumulating evidence suggests that both early retinotopic and higher …

Real-life visual object recognition requires the processing of more than just geometric
(shape, size, and orientation) properties. Surface properties such as color and texture are …

We investigated the influence of stimulus complexity on the macro network of visual areas
involved in 'cue invariant'form perception. Functional MRI imaging on 14 healthy, adult …

To efficiently extract visual information from complex visual scenes to guide behavior and
thought, visual input needs to be organized into discrete units that can be selectively …

To address the question of the relationship between the two visual pathways, a ventral
stream for object and form vision and a dorsal stream for spatial and motion vision, we …

Learning in shape identification led to global changes in activation across the entire visual
pathway, as revealed with whole-brain fMRI. Following extensive training in a shape …

Two experiments are reported that used fMRI to compare the brain activation during the
imagery of material and geometric object features. In the first experiment, participants were …

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 …