Electrocorticography links human temporoparietal junction to visual perception

Nat Neurosci. 2012 Jun 3;15(7):957-9. doi: 10.1038/nn.3131.


Electrical stimulation of visual cortex can produce a visual percept (phosphene). We electrically stimulated visual cortex in humans implanted with subdural electrodes while recording from other brain sites. Phosphene perception occurred only if stimulation evoked high-frequency gamma oscillations in the temporoparietal junction (TPJ), a brain region associated with visual extinction and neglect. Electrical stimulation of TPJ modified the detectability of low-contrast visual stimuli.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Brain Waves / physiology
  • Cortical Synchronization / physiology*
  • Electric Stimulation / methods
  • Electrodes, Implanted*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Parietal Lobe / physiology*
  • Photic Stimulation / methods*
  • Temporal Lobe / physiology*
  • Visual Cortex / physiology*
  • Visual Perception / physiology*