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Antisaccade latency and accuracy in young healthy participants, healthy elderly, and Parkinson's patients (PD). (A) Increased average antisaccade onset latency in PD patients as compared to healthy elderly and in healthy elderly as compared to young participants. No significant differences in latency between healthy elderly and PD. (B) No significant differences between groups on average antisaccade accuracy. *P< 0.05; **P < 0.01.
