Visual attention in the tree shrew: an ablation study of the striate and extrastriate visual cortex

Science. 1971 Feb 19;171(3972):696-9. doi: 10.1126/science.171.3972.696.


Removal of the striate area in tree shrews results in increased distractibility, which prevents the animals from learning to discriminate form when hue is an irrelevant and distracting cue. Removal of the extrastriate visual cortex results in the reciprocal deficit: an increase in perseveration manifested by an inability to shift attention when irrelevant dimensions are made relevant.

MeSH terms

  • Animals
  • Attention*
  • Biological Evolution
  • Color
  • Discrimination Learning*
  • Eulipotyphla / physiology*
  • Form Perception*
  • Orientation
  • Psychophysiology
  • Visual Cortex / physiology*