Patterns of Neglect Dissociation
نویسندگان
چکیده
منابع مشابه
The dissociation of visuospatial neglect and neglect dyslexia.
A right-handed man with a left hemisphere lesion extending into the right hemisphere, with evidence of both a left-sided neglect dyslexia and right-sided visuospatial neglect is reported. When copying simple geometric designs he omitted to copy figures on the right-hand side of the page, when bisecting lines he tended to bisect the line to the left of the line's actual centre. He had a neglect ...
متن کاملPersonal and extrapersonal space: a case of neglect dissociation.
Dissociation between personal and extrapersonal neglect has rarely been observed in man. In this study we present a case of severe personal neglect in the absence of a deficit for extrapersonal space. An extensive neuropsychological assessment demonstrates the absence of cognitive impairments in visuo-spatial processing and confirms the selective presence of a severe representational deficit of...
متن کاملDissociation of sensory-attentional from motor-intentional neglect.
OBJECTIVES Spatial neglect may result from disruption of sensory-attentional systems that spatially allocate perceptual resources and the motor-intentional systems that direct exploration and action. Previous studies have suggested that the line bisection task is more sensitive to sensory-attentional disorders and the cancellation task to motor-intentional disorders. A new technique was develop...
متن کاملNeglect in vision and visual imagery: a double dissociation.
We report two patients with right hemisphere lesions who demonstrate a double dissociation on visual imagery and visual perceptual tasks. One (M.N.) performed normally on a variety of standard tests for neglects as well as on measures of visual attention known to be sensitive to the presence of neglect, yet failed to report items from the left side of an imagined scene. In contrast, the other (...
متن کاملDouble dissociation between representational personal and extrapersonal neglect.
BACKGROUND Although perceptual and representational neglect are frequently associated, the demonstration of a double dissociation between both neglect forms suggests that both rely on different central mechanisms. In addition, perceptual neglect can be selectively observed within personal space or extrapersonal space. However, it is not known whether the latter dissociation also exists in repre...
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ژورنال
عنوان ژورنال: Behavioural Neurology
سال: 1989
ISSN: 0953-4180,1875-8584
DOI: 10.1155/1989/728487