Digit span performance and unilateral neglect.

L J Rapport; J S Webster; R L Dutra

doi:10.1016/0028-3932(94)90141-4

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PubMed · 8084411

Digit span performance and unilateral neglect.

L J Rapport·J S Webster·R L Dutra

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Abstract

This study tested the alternative hypotheses of Weinberg et al. (J. clin. Psychol. 28, 361, 1976) and Robertson (Neuropsychologia 28, 217-222, 1990) regarding the nature of dysfunctions underlying impaired backward digit span among patients with unilateral neglect. Results support the Weinberg et al. hypothesis that visual imagery plays a primary role in performance of Digits Backward. The findings also indicate a unilateral component to the Digits Backward task. Both neglecting and non-neglecting patients with high digit span discrepancy (DD) evidenced attentional bias to right space and a specific impairment in rotating objects in left space. Results were not consistent with Robertson's hypothesis that high DD arises from a general attentional deficit. In fact, patients with low DD evidence greatest impairment on tests of attention.

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L J Rapport, J S Webster, R L Dutra. 1994. Digit span performance and unilateral neglect.. https://doi.org/10.1016/0028-3932(94)90141-4

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