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Neurorehabilitation and Neural Repair
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Task-Dependent Neglect: Computed Tomography Size and Locus Correlations

Jennifer Horner

Department of Surgery, Duke University Medical Center

E. Wayne Massey

Department of Medicine, Duke University Medical Center

William W. Woodruff

Department of Radiology, Duke University Medical Center

Karen Nailling Chase

Department of Surgery, Duke University Medical Center

Deborah V. Dawson

Department of Community and Family Medicine, Duke University Medical Center, Durham, NC, U.S.A.

We studied the severity and task-specific nature of neglect in relation to brain lesion size and locus in 23 right hemisphere stroke patients. We used five visuospatial tasks, including reading and writing. No single task identified hemispatial neglect in all patients. Drawing from memory was most sensitive, whereas writing was least sensitive. Neglect was not limited to parietal disease, but occurred following lesions in several cortical and subcortical locations. Severity of neglect correlated significantly with lesion locus (it was most severe with central lesions), but not with lesion size. We discuss observed patterns of neglect relative to a theory of hypoarousal and suggest the importance of neglect to prognosis for recovery from stroke.

Key Words: Neglect • Task-dependent neglect • Left hemisphere • Head computed tomography.

Neurorehabilitation and Neural Repair, Vol. 3, No. 1, 7-13 (1989)
DOI: 10.1177/136140968900300102
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