A Parametric fMRI Study of Overt and Covert Shifts of Visuospatial Attention

  title={A Parametric fMRI Study of Overt and Covert Shifts of Visuospatial Attention},
  author={Michael S. Beauchamp and Laurent Petit and Timothy M. Ellmore and John E. Ingeholm and James V. Haxby},
It has recently been demonstrated that a cortical network of visuospatial and oculomotor control areas is active for covert shifts of spatial attention (shifts of attention without eye movements) as well as for overt shifts of spatial attention (shifts of attention with saccadic eye movements). Studies examining activity in this visuospatial network during attentional shifts at a single rate have given conflicting reports about how the activity differs for overt and covert shifts. To better… 

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