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Reduced negative affect response in female psychopaths.

Hedwig Eisenbarth1, Alessandro Angrilli, Antonio Calogero

  • 1University of Regensburg, Germany.

Biological Psychology
|July 31, 2013
PubMed
Summary

High psychopathy in female offenders shows reduced brain reactivity (N2 component) to angry and fear facial expressions, suggesting early emotional processing differences. This finding aligns with studies on psychopathic men.

Keywords:
Event-related potentialsFacial affectFemalePsychopathyTime–frequency

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Area of Science:

  • Neuroscience
  • Forensic Psychology
  • Psychiatry

Background:

  • Psychopathy is linked to altered emotional processing, but research often excludes females.
  • Previous studies suggest differences in brain activity during facial emotion recognition in psychopathic males.

Purpose of the Study:

  • To investigate brain activity differences in female offenders with varying psychopathy levels during emotional facial expression processing.
  • To determine if behavioral differences in psychopathy correlate with specific electroencephalographic (EEG) patterns.

Main Methods:

  • Utilized electroencephalography (EEG) to record event-related potentials (ERPs) in 23 female forensic inpatients.
  • Participants viewed facial expressions of fear, anger, and happiness.
  • Assessed psychopathy using the Psychopathy Checklist Revised (PCL-R).

Main Results:

  • No significant differences were found in N170, P3, or late positive potential components.
  • A notable difference in the N2 component was observed for angry and fear expressions, with higher psychopathy scores correlating with lower N2 reactivity.
  • This N2 effect was associated with PCL-R Factor 2, not Factor 1, and was linked to theta activity.

Conclusions:

  • Findings suggest a cortical deficit in processing negative facial emotions in female offenders with high psychopathy.
  • These emotional processing differences appear early in the neural response.
  • Results support existing theories of psychopathy and emotional deficits, extending them to a female forensic population.