The speed of visual cognition.

  title={The speed of visual cognition.},
  author={Christoph M. Michel and Margitta Seeck and Micah M. Murray},
  journal={Supplements to Clinical neurophysiology},
Intracranial electrophysiological recordings in primates showed repeatedly that neurons in several cortical areas are activated very early after visual stimulus presentation, practically at the same time (or even before) the activation of primary sensory neurons. Even neurons at the highest hierarchical levels of the visual system are activated in less than 100 ms. These findings challenge the classical interpretation of human evoked potential (EP) data that assume that the first, "exogenous… CONTINUE READING

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