Recognition and surprise alter the human visual evoked response

H. Neville, E. Snyder, David L Woods, R. Galambos

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


Event-related brain potentials (ERPs) to colored slides contained a late positive component that was significantly enhanced when adults recognized the person, place, or painting in the photograph. Additionally, two late components change in amplitude, corresponding to the amount of surprise reported. Because subjects received no instructions to differentiate among the slides, these changes in brain potentials reflect natural classifications made according to their perceptions and evaluations of the pictorial material. This may be a useful paradigm with which to assess perception, memory, and orienting capacities in populations such as infants who cannot follow verbal instructions.

Original languageEnglish (US)
Pages (from-to)2121-2123
Number of pages3
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number6 I
StatePublished - 1982
Externally publishedYes

ASJC Scopus subject areas

  • General
  • Genetics


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