Pupil Diameter May Reflect Motor Control and Learning

  title={Pupil Diameter May Reflect Motor Control and Learning},
  author={Olivier White and Robert French},
  journal={Journal of Motor Behavior},
  pages={141 - 149}
ABSTRACT Non–luminance-mediated changes in pupil diameter have been used since the first studies by Darwin in 1872 as indicators of clinical, cognitive, and arousal states. However, the relation between processes involved in motor control and changes in pupil diameter remains largely unknown. Twenty participants attempted to compensate random walks of a cursor with a computer mouse to restrain its trajectory within a target circle while the authors recorded their pupil diameters. Two conditions… 
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