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Simultanagnosia (resulting from occipito-parietal damage) is a profound visual deficit, which impairs the ability to perceive multiple items in a visual display, while preserving the ability to recognise single objects. Here we demonstrate in a patient presenting with Balint's syndrome that this deficit may result from an extreme form of competition between objects which makes it difficult for attention to be disengaged from an object once it has been selected.

Original publication

DOI

10.1007/s00426-008-0210-2

Type

Journal article

Journal

Psychol Res

Publication Date

03/2009

Volume

73

Pages

263 - 270

Keywords

Acoustic Stimulation, Aged, Attention, Functional Laterality, Humans, Magnetic Resonance Imaging, Male, Parietal Lobe, Pattern Recognition, Visual, Perceptual Disorders, Space Perception, Vision Disorders, Visual Fields, Visual Pathways, Visual Perception