Attenuated late positivity in the visual evoked potential in aphasia induced by lesions in anterior speech area

M. Behari, P. S. Rao, A. Verma

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Seven anterior aphasics, 7 nonbrain-damaged subjects and 7 normal controls were tested for their visual evoked potentials. Aphasics showed an attenuation of the long latency positivity related to interest in the stimulus. The attenuation may indicate the subject’s failure to signal communicative intention. Thus the attenuated positivity may be a physiological correlate of a behavioral state (aphasia) induced by brain lesions.

Original languageEnglish (US)
Pages (from-to)83-86
Number of pages4
JournalNeuropsychobiology
Volume25
Issue number2
DOIs
StatePublished - Jan 1 1992
Externally publishedYes

Keywords

  • Aphasia
  • Broca’s area
  • Communicative behavior
  • Visual evoked potential

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Psychiatry and Mental health
  • Biological Psychiatry

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