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Cognitive evoked potential (P 300 ): a metric for cerebral concussion
Author(s) -
PratapChand R.,
Sinniah Malliga,
Salem F. A.
Publication year - 1988
Publication title -
acta neurologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.967
H-Index - 95
eISSN - 1600-0404
pISSN - 0001-6314
DOI - 10.1111/j.1600-0404.1988.tb03643.x
Subject(s) - concussion , head injury , medicine , evoked potential , audiology , latency (audio) , cognition , anesthesia , poison control , psychology , physical medicine and rehabilitation , physical therapy , injury prevention , surgery , psychiatry , medical emergency , electrical engineering , engineering
‐ Cognitive impairment has been reported to occur in minor head injury (concussion). The value of the P 300 evoked potential as a measure of cerebral concussion was studied in 20 patients with minor head injury and compared with the data from 20 normal subjects. Significant abnormalities of the P 300 latency and amplitude were noted in these patients in the post‐concussion period. The abnormalities improved completely on repeat testing. The correlation of the P 300 to other parameters of head injury is discussed. The P 300 constitutes a simple laboratory test that is a sensitive measure of cerebral dysfunction in concussive head injuries.