Author:
Parker-Taillon Dianne,Kerr Robert
Abstract
The ability to learn and perform a psychomotor task (pursuit tracking task) of ten subjects who had sustained right hemisphere lesions (RHL) was compared to ten healthy individuals matched for age and gender. The task required subjects to react and move quickly, varying both the distance to be moved and the choice of movement direction. All subjects completed 1200 responses across two testing sessions. Results indicated that while the RHL group was able to ‘learn’ the task as well as the Control group, they were slower at correcting unanticipated movement errors. In addition, the RHL group did not respond to changes in the probable direction of the next movement in the same manner as the Control group and, in fact, appeared unaware of changes in the probability of movement direction.