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Related Experiment Videos

Depression, pain, and hemispheric activation.

M W Otto1, M J Dougher, R A Yeo

  • 1Department of Psychiatry, Massachusetts General Hospital, Boston.

The Journal of Nervous and Mental Disease
|April 1, 1989
PubMed
Summary
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This study explored right hemisphere brain activation in depression and pain. While the right hemisphere did not mediate co-occurring pain and depression, it uniquely influences pain perception.

Area of Science:

  • Neuroscience
  • Psychology
  • Pain Research

Background:

  • Depression and chronic pain frequently co-occur.
  • The right hemisphere is theorized to process negative emotional stimuli.
  • Hemispheric specialization may underlie the link between depression and pain.

Purpose of the Study:

  • To investigate the role of hemispheric activation in depression and pain.
  • To examine if right hemisphere specialization mediates the co-occurrence of depression and pain.
  • To explore the relationship between depression, experimental pain, and cerebral laterality.

Main Methods:

  • Investigated 16 depressed and 16 nondepressed female students.
  • Assessed cerebral laterality using visual and auditory bias tasks.

Related Experiment Videos

  • Measured pain perception via a cold pressor task.

    • Main Results:

    • The hypothesis that the right hemisphere mediates co-occurring pain and depression was not supported.
    • Findings suggest the right hemisphere plays a unique role in pain perception.
    • Pain exposure led to increased right hemisphere activation (left visual field bias).

    Conclusions:

    • The right hemisphere's role in pain perception is distinct from its role in mediating co-occurring depression and pain.
    • Pain perception is influenced by mood, preceding tasks, and hand tested.
    • Results have implications for understanding pain lateralization in disorders with psychogenic components.