Abstract Studies of saccadic eye movements in Parkinson's disease (PD) patients have revealed an ocuiomotor deficit associated with memory-gulded eye movements. Such patients show normal visually guided saccades to peripheral targets, but are often Impaired when required to make a saccade to the remembered location of a visual target. This deficit is Characterized by an impairment in the ability to generate an appropriately scaled primary saccade. Similar findlngs have recently been obtained using a skeietomotor analogue of the memory-guided saccade task. in that study we examined transport and grasp kinematics for visually guided and memory-guided prehension movements in a group of patients with PD, and demonstrated analogous deficits to those prevlously reported for memory-guided saccadic eye movements. While the patient group did not differ from their age-matched controls when executing visually guided prehension movements, they were clearly shown to be significantly impaired when executing memoryguide...