The relation of brain injury and visual perception to block design rotation.

Abstract

In a study of the Block Design Rotation Test with brain-injured and non-brain-injured patients with and without field reducers, it was found that diagonal symmetry produced more rotation in the S''s reproduced design than rectangular symmetry, "when the target design was presented as a diamond figure, there was more rotation than when it was presented as a square figure, ... when the target design was presented on a diamond ground, there was more rotation than when it was presented on a square ground ... both figure and symmetry were more powerful than ground in producing rotation...." These relationships were similar to ones reported earlier by Shapiro and Yates.