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Related Experiment Videos

"No longer Gage": frontal lobe dysfunction and emotional changes.

D T Stuss1, C A Gow, C R Hetherington

  • 1Rotman Research Institute of Baycrest Centre, North York, Ontario, Canada.

Journal of Consulting and Clinical Psychology
|June 1, 1992
PubMed
Summary

Damage to frontal systems causes significant personality and emotional changes. These changes manifest as disorders of motivation, mood, affect, and a key deficit in self-reflective awareness.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Psychology

Background:

  • Frontal lobe damage can result from various neurological causes.
  • Frontal lobe dysfunction is associated with numerous psychiatric disturbances.
  • Changes in emotional response and personality are common after frontal system damage.

Purpose of the Study:

  • To review and define changes in emotional response and personality following frontal system damage.
  • To analyze published reports based on proposed operational definitions.
  • To summarize neurological causes and psychiatric associations of frontal dysfunction.

Main Methods:

  • Review of existing literature on frontal lobe damage and its effects.
  • Proposal of operational definitions for emotional and personality changes.

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  • Analysis of published reports according to these definitions.

    • Main Results:

    • Symptoms of frontal lobe damage can be classified into disorders of drive/motivation, mood, and affect.
    • Primary change after frontal lobe pathology is a disorder of personality.
    • Personality dysfunction includes cognitive deficits, notably a disorder of self-reflective awareness.

    Conclusions:

    • Frontal lobe damage leads to distinct alterations in personality and emotional regulation.
    • Understanding these changes requires classifying them into specific disorder categories.
    • Disorders of personality, including impaired self-awareness, are central to frontal lobe dysfunction.