Elsevier

Neuropsychologia

Volume 32, Issue 9, September 1994, Pages 1059-1066
Neuropsychologia

Left visuo-spatial neglect can be worse in far than in near space

https://doi.org/10.1016/0028-3932(94)90152-XGet rights and content

Abstract

We tested five patients with marked left-sided visuo-spatial neglect and two control subjects on a test of line bisection. A series of horizontal lines was presented to each subject, who had to indicate the centre with a projection light-pen. All five patients misplaced the centre to the right, in accordance with their left-sided neglect. However, in all five the angular displacement was greater for lines well beyond reach, than for lines of identical angular size within reaching distance. This result, precisely because it is opposite to that of a previous report, supports the conclusion that there are separate dissociated neural systems concerned with the perception of, and response to, stimuli in near and far space.

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    2020, Neuropsychologia
    Citation Excerpt :

    The individual with a lesion to the right hemisphere may also demonstrate neglect of the contralesional side of space within arm's reach (peripersonal neglect) or beyond arm's reach (extrapersonal neglect). For instance, when asked to copy a picture, the affected individual may ignore the left side of the picture and draw only the right side of the picture (peripersonal neglect), or they may ignore the left side of the screen in a lecture theatre and read only the information located on the right side of the screen (extrapersonal neglect; see Cowey et al., 1994; Halligan and Marshall, 1991). Across different cohorts of patients who have suffered a CVA (or stroke), it has been reported that neglect is experienced in 33%–82% of patients with a right hemisphere lesion and 20%–65% of patients with a left hemisphere lesion (see Chen, Chen, Hreha, Goedert and Barrett, 2015a).

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