Simultanagnosia is a disorder of visual attention that leaves a patient's world unglued:
scenes and objects are perceived in a piecemeal manner. It is generally agreed that …

In 1909 a Hungarian physician, Rezsö Bálint, published the first report of a striking visual
problem in a patient with bilateral parietal lesions (Bálint, 1909). Bálint had studied his …

Because of our limited processing capacity, different elements of the visual scene compete
for the allocation of processing resources. One of the most striking deficits in visual selection …

This study is the first to assess lesion–symptom relations for subitizing and counting
impairments in a large sample of neuropsychological patients (41 patients) using an …

Previous research has suggested that, when operating in a distributed attention mode, the
visual system automatically represents visual displays by their overall statistics, rather than …

The performance of two patients with visual agnosia was compared across a number of tests
examining visual processing. The patients were distinguished by having dorsal and medial …

Symmetry is a highly salient feature in the visual world, abundant in both man-made and
natural objects. In particular, humans find reflectional symmetry most salient …

Simultanagnosia is a deficit in which patients are unable to perceive multiple objects
simultaneously. To date, it remains disputed whether this deficit results from disrupted object …

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

Neuropsychological and functional imaging studies have shown a general right hemisphere
advantage for processing global visual information and a left hemisphere advantage for …