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Long‐term effects of severe closed head injury on memory: evidence from a consecutive series of young adults
Author(s) -
BennettLevy J. M.
Publication year - 1984
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.1600-0404.1984.tb00826.x
Subject(s) - amnesia , closed head injury , head injury , medicine , young adult , cognition , pediatrics , cognitive impairment , audiology , psychology , traumatic brain injury , physical medicine and rehabilitation , surgery , psychiatry
– Long‐term cognitive sequelae of severe closed head injury were studied in a consecutive series of 39 young head‐injured adults without gross intellectual deficits. Testing was carried out 2–5 years post‐injury. Patients with a post‐traumatic amnesia (PTA) > 3 weeks were impaired on a wide range of tests, particularly those requiring long‐term retention of complex materials or where time constraints were a salient feature. Patients with a PTA of 1–3 weeks were unimpaired on all tasks. The results suggest that in young adults a threshold of brain damage related to long‐term cognitive impairment operates at around a 2–3 week PTA duration.