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Patients with extinction fail to report a contralesional stimulus when it is presented at the same time as an ipsilesional stimulus, and patients with unilateral neglect fail to report a contralesional stimulus even when there is no competing ipsilesional stimulus. Whereas extinction and neglect are common following stroke, the related phenomenon of anti-extinction is rare--there are four cases of anti-extinction in the literature, and all four cases demonstrated anti-extinction in the visual modality. Patients with anti-extinction do report a contralesional stimulus when it is presented at the same time as an ipsilesional stimulus; but, like patients with neglect, they fail to report a contralesional stimulus when there is no competing ipsilesional stimulus. We present the first case ofanti-extinction in the tactile modality.

Type

Journal article

Journal

Perception

Publication Date

2013

Volume

42

Pages

669 - 671

Keywords

Aged, Attention, Awareness, Extinction, Psychological, Functional Laterality, Generalization (Psychology), Hemiplegia, Humans, Infarction, Middle Cerebral Artery, Male, Pattern Recognition, Visual, Perceptual Disorders, Touch