Saskia van Stockum, Michael R. MacAskill, Daniel Myall and Tim J. Anderson A perceptual discrimination task results in greater facilitation of voluntary saccades in Parkinson's disease patients European Journal of Neuroscience 37
A saccade task combining voluntary saccades with a perceptual discrimination task was used to investigate oculomotor changes in Parkinson's disease. Exogenous and endogenous effects facilitated saccade initiation more in the PD group than in the control group. The results suggest that both saccade initiation and the maintenance of fixation are impaired in PD.
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