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Related Experiment Videos

Emotion recognition during cocaine intoxication.

K P C Kuypers1, L Steenbergen2, E L Theunissen1

  • 1Department of Neuropsychology & Psychopharmacology, Faculty of Psychology & Neuroscience, Maastricht University, Maastricht, The Netherlands.

European Neuropsychopharmacology : the Journal of the European College of Neuropsychopharmacology
|September 3, 2015
PubMed
Summary

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Cocaine use impairs the recognition of negative emotions, particularly sadness. This effect depends on emotion intensity and the individual's cortisol response to cocaine.

Area of Science:

  • Neuroscience
  • Psychology
  • Pharmacology

Background:

  • Chronic cocaine use is associated with social skill deficits.
  • The direct impact of cocaine on social cognition, independent of polydrug use, remains unclear.
  • Cocaine's effects on stress responses (cortisol) and emotion recognition warrant investigation.

Purpose of the Study:

  • To investigate cocaine's effect on emotion recognition in a controlled setting.
  • To examine the relationship between cocaine-induced stress responses and emotion recognition deficits.
  • To differentiate cocaine's effects from potential confounding factors like polydrug use.

Main Methods:

  • A placebo-controlled, within-subject study involving 24 recreational cocaine users.
  • Administration of oral cocaine (300 mg) or placebo, with testing 1-2 hours post-administration.
Keywords:
CocaineCortisolEmotion recognition

Related Experiment Videos

  • Assessment of emotion recognition for basic emotions (fear, anger, disgust, sadness, happiness) at varying intensities, alongside cortisol and cardiovascular measurements.

    • Main Results:

    • Cocaine significantly impaired the recognition of negative emotions, influenced by expression intensity.
    • High-intensity anger and disgust recognition improved to placebo levels under cocaine, while sadness recognition worsened.
    • Enhanced cortisol responses correlated with normalized performance for high-intensity anger and disgust recognition.

    Conclusions:

    • Cocaine impairs negative emotion recognition, with effects modulated by emotion intensity and individual cortisol reactivity.
    • The study highlights cocaine's specific impact on social cognition, mediated by physiological stress responses.
    • Findings suggest that cocaine's influence on emotion processing is complex and context-dependent.