point of regard in three-dimensional space on responsiveness of visual cortical neurons in
areas V1, V2, and V4. Such modulatory effects are both common, affecting 85% of cells, and
strong, frequently producing changes of mean firing rate by a factor of 10. The prevalence of
neurons in area V4 showing a preference for near distances may be indicative of the
involvement of this area in close scrutiny during object recognition. We propose that eye …