J Neuropsychiatry Clin Neurosci 18:333-341, August 2006
doi: 10.1176/appi.neuropsych.18.3.333
© 2006 American Neuropsychiatric Association
Neuropsychological and Neurobehavioral Correlates of Aggression Following Traumatic Brain Injury
Rodger L. Wood, Ph.D. and
Christina Liossi, D.Psych.
Received July 22, 2005; revised September 23, 2005; accepted October 11, 2005. Dr. Wood is affiliated with Swansea University, Swansea, Wales. Dr. Liossi is affiliated with the University of Southampton, Southampton, United Kingdom. Address correspondence to Dr. Liossi, School of Psychology, University of Southampton, Highfield, Southampton, S017 1BJ, UK; cliossi{at}soton.ac.uk (E-mail).
This study aimed to establish the neuropsychological and neurobehavioral profile of individuals who develop aggression following traumatic brain injury. In a prospective cohort study, 134 brain-injured individuals who exhibited aggression were compared to 153 individuals who had sustained comparable injuries but were not aggressive. In the aggressive group, specific deficits were identified in verbal memory and visuo-perceptual skills. Compared to normative data, this group had impaired executive-attention function. It is tentatively suggested that significant impairment in verbal memory and visuospatial abilities against a background of diminished executive-attention functioning is associated with the development of aggression after brain injury, especially when other risk factors such as low premorbid IQ, low socioeconomic status, and male gender are present.
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