Abstract
A patient with severe left neglect consequent upon a large right temporoparietal infarct is described. We report her performance on line bisection with computerised visual display unit (VDU) presentation. In this format, the patient makes her transections by moving a “mouse”-controlled cursor arrow. The technique allows cueing (that is, the initial positioning of the cursor at either the left or right end of the stimulus line) to be locked to the task under analysis (line bisection). The effects of starting position and of perceptuo-motor compatibility upon the magnitude and direction of displacements from the true mid-point are compared and contrasted. Left-start cueing effects a significant reduction in neglect; stimulus-response incompatibility precipitates only minimal qualitative or quantitative changes.