Cognitive sequelae of repeated head injury in a population of intravenous drug users

KNUT HESTAD, MARCIA UPDIKE, OLA A. SELNES, WALTER ROYAL

Research output: Contribution to journalArticle

Abstract

The relationship between closed head injury and performance on neuropsychological (NP) tests was investigated in a group of intravenous drug users (IVDUs). Subjects with repeated head traumas involving loss of consciousness (LOC) performed worse than both a control group without LOC and reference group with only a single episode of LOC. There were no significant differences between the last two groups. Performance on tests of memory, attention, and motor performance was significantly worse in the group with repeated head injury. The average time since the last episode of LOC was more than 11 years. We conclude from these findings that a single episode of LOC does not result in significant cognitive impairment in this population. Two or more episodes, however, are more likely to produce chronic cognitive impairment.

Original languageEnglish (US)
Pages (from-to)246-255
Number of pages10
JournalScandinavian Journal of Psychology
Volume36
Issue number3
DOIs
StatePublished - Sep 1995

Keywords

  • Head injury
  • drug use
  • neuropsychology
  • repeated
  • severity

ASJC Scopus subject areas

  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Psychology(all)

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