An Event-Related Potential Evaluation of the Cognitive Performance of U. S. Navy Alcoholics

Abstract

The results of the first of four sessions of a year-long longitudinal study of alcoholics are reported. The ERPs of two groups (11 alcoholics and 11 nonalcoholics) of subjects were recorded in order to evaluate their utility as objective indicators of cognitive rehabilitation. An additional analysis was done in order to evaluate their usefulness as indicators of alcoholism. The first session data supports the results of similar studies and therefore the data appears to be reliable and valid. A significant P50 amplitude difference between groups suggests that the alcoholics may have altered sensory gating abilities. The results of a stepwise discriminant analysis of the component parameter values indicated that 100 percent of the training set (all subjects in both groups) were correctly classified. The equation derived from the training set classification coefficients correctly classified six of six alcoholics in a different sample. The strong discrimination between groups suggests that certain ERP component values (P50, N1-P2 complex, and P300) may aid in the identification of alcoholics.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA247680

Entities

People

  • David A. Kobus
  • Jennifer A. Rogale
  • Lex L. Merrill

Organizations

  • Naval Health Research Center

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Alcoholism
  • Amplitude
  • Brain
  • Classification
  • Data Science
  • Discriminant Analysis
  • Education
  • Electroencephalography
  • Electrophysiological Phenomena
  • Health Services
  • Information Science
  • Medical Personnel
  • Military Personnel
  • Plastic Explosives
  • Psychiatry
  • Psychology
  • Training

Fields of Study

  • Medicine

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Human-Computer Interaction (HCI).
  • Regression Analysis.