| Summary: | <p>Abstract</p> <p>Background</p> <p>Cognitive deficits are a substantial burden in clinical depression. The present study considered dysfunction in the right-hemispheric attention network in depression, examining alertness and visuospatial attention.</p> <p>Methods</p> <p>Three computerized visuospatial attention tests and an alertness test were administered to 16 depressive patients and 16 matched healthy controls.</p> <p>Results</p> <p>Although no significant group effect was observed, alertness predicted reduced visuospatial performance in the left hemifield. Furthermore, sad mood showed a trend towards predicting left visual field omissions.</p> <p>Conclusions</p> <p>Decreased alertness may lead to lower left hemifield visuospatial attention; this mechanism may be responsible for a spatial bias to the right side in depression, even though treatment of depression and anxiety may reduce this cognitive deficit.</p>
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