Abstract
AbstractThis chapter addresses one possible contributing component to the neglect syndrome that has received relatively little attention to date, namely deficits in spatial working memory. It is proposed that impaired spatial working memory may contribute to recursive examination of ipsilesional locations in many visual tasks. It also considers how possible spatial working memory deficits might impact performance on a standard diagnostic test for neglect, namely cancellation tasks. In doing so, it discusses a new variant of the cancellation task (‘invisible’ cancellation) which provides a clinically applicable method for investigating the role of spatial working memory at the bedside. In general, it is suggested that deficits in spatial working memory may promote visuospatial neglect. Specifically, it indicates a role for a deficit in retaining which locations have already been examined, across saccades during search.
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