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Investigating the Function of Deep Cortical and Subcortical Structures Using Stereotactic Electroencephalography: Lessons from the Anterior Cingulate Cortex
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Cognitive-emotion processing in psychogenic nonepileptic seizures.

Rachael Rosales1, Barbara Dworetzky2, Gaston Baslet1

  • 1Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, 60 Fenwood Road, Boston, MA 02115, USA.

Epilepsy & Behavior : E&B
|November 16, 2019
PubMed
Summary

Patients with psychogenic nonepileptic seizures (PNES) exhibit impaired emotion processing, particularly in emotion clarity and adjustment, especially those with trauma histories. These deficits correlate with increased psychopathology, suggesting potential therapeutic targets.

Keywords:
Emotion processingEmotionsFunctional neurological disorderPsychogenic nonepileptic seizuresPsychopathology

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Area of Science:

  • Neuroscience
  • Psychology
  • Clinical Medicine

Background:

  • Cognitive-emotion processing is implicated in the pathogenesis of psychogenic nonepileptic seizures (PNES).
  • Understanding these alterations is crucial for developing effective treatments for PNES.

Purpose of the Study:

  • To characterize cognitive-emotion processing deficits in patients with PNES.
  • To investigate the impact of trauma-related factors on these deficits.
  • To explore the relationship between cognitive-emotion processing and psychopathology severity in PNES.

Main Methods:

  • A descriptive, cross-sectional study involving 143 video-EEG confirmed PNES patients.
  • Self-report questionnaires assessed emotion perception (Trait Meta-Mood Scale) and coping styles (Affective Styles Questionnaire).
  • Data were compared to normative data and analyzed for correlations with psychopathology and trauma history.

Main Results:

  • PNES patients showed significantly lower scores in emotion clarity and adjustment compared to norms.
  • Individuals with a history of childhood abuse or PTSD had poorer emotion clarity, adjustment, and tolerance.
  • Impaired emotion clarity correlated with higher depression, anxiety, stress, and illness perception severity.

Conclusions:

  • Patients with PNES, particularly those with trauma and PTSD, demonstrate deficits in emotion clarity and adjustment.
  • These cognitive-emotion processing alterations are linked to increased psychopathology.
  • Characterized deficits offer potential targets for therapeutic interventions in PNES.