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Emotional and physiological responses to false feedback.

G P Crucian1, J D Hughes, A M Barrett

  • 1The Department of Neurology, University of Florida, Gainesville 32610-0236, USA. crucigp@neurology.ufl.edu

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|February 24, 2001
PubMed
Summary

Brain damage impacts emotional experience. Left hemisphere damage increases reactivity to false physiological feedback, influencing emotional judgments, while the right hemisphere integrates emotional cues.

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Area of Science:

  • Neuroscience
  • Psychology
  • Cognitive Science

Background:

  • The relationship between autonomic arousal and emotional experience is complex and not fully understood.
  • Cognitive-arousal theories suggest emotions arise from physiological feedback and cognitive interpretation of stimuli.
  • The right hemisphere's role in arousal modulation and emotional interpretation is hypothesized to be crucial for emotional experience.

Purpose of the Study:

  • To investigate the impact of left and right hemisphere damage on emotional experience and judgment.
  • To test the hypothesis that right hemisphere damage interferes with emotional experience due to impaired processing of arousal and stimuli.
  • To examine how false cardiac feedback affects emotional ratings and cardiac reactivity in neurologically intact and lesioned individuals.

Main Methods:

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  • Participants included neurologically intact men, men with right hemisphere lesions, and men with left hemisphere lesions.
  • Subjects were exposed to emotionally provocative pictures paired with false cardiac feedback.
  • Emotional ratings of pictures and cardiac reactivity were measured to assess the effects of false feedback.

Main Results:

  • Left hemisphere damaged subjects showed significant changes in emotional ratings and cardiac reactivity in response to false feedback.
  • Right hemisphere damaged subjects and controls showed less significant changes in emotional ratings.
  • Increased visceral-autonomic response was observed in left hemisphere lesioned patients compared to controls and right hemisphere patients.

Conclusions:

  • Cognitive interpretation of physiological arousal and stimuli are vital for emotional judgment and experience.
  • Left hemisphere damage enhances reactivity to false feedback, while the intact right hemisphere integrates emotional information and arousal perception.
  • Findings challenge the James-Lange and attribution theories, suggesting other neuropsychological factors influence emotional judgment.