On block design constructional disability in right and left hemisphere brain-damaged patients

Block design tasks without or with special visual cues, tests of reasoning abilities and tests of spatial abilities were administered to 20 right and 20 left hemisphere damaged patients and 20 controls. Hécaen and Assal's (1970) hypothesis was not confirmed for block design constructional performance. Results of multiple linear regression analysis suggest that left hemisphere damaged patients adopt different strategies for the two different task situations.