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Current investigations in headache

M Sovak, D J Dalessio, M Kunzel

    Research Publications - Association for Research in Nervous and Mental Disease
    |January 1, 1980
    PubMed
    Summary
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    Biofeedback training in migraine patients reduced sympathetic nervous system activity, improving migraine symptoms and psychological well-being. This suggests biofeedback may treat psychosomatic disorders with vasomotor abnormalities.

    Area of Science:

    • Neuroscience
    • Autonomic Nervous System Physiology
    • Psychophysiology

    Background:

    • Migraine is associated with complex autonomic and vasomotor changes.
    • Understanding these physiological responses is crucial for developing effective treatments.

    Purpose of the Study:

    • To investigate the autonomic and vasomotor responses in migraineurs compared to normal subjects.
    • To evaluate the efficacy of biofeedback (BF) training in modulating these responses and improving migraine symptoms.

    Main Methods:

    • Studied supraorbital (SA), superficial temporal (TA), and digital (F) arterial beds and heart rate in normal subjects and migraineurs.
    • Utilized volitional hand warming and heat application to induce vasomotor changes.
    • Assessed changes using finger temperature feedback training and psychological tests (MMPI).

    Related Experiment Videos

    Main Results:

    • Normal subjects showed distinct vasoconstriction/vasodilation patterns.
    • Migraineurs exhibited varied responses; some experienced bradycardia.
    • Clinically improved migraineurs showed a general decrease in sympathetic outflow, not specific digital vasodilation.
    • Improvement in migraine correlated with better MMPI scores, indicating reduced neurosis.

    Conclusions:

    • Biofeedback training may reduce sympathetic tonic outflow in migraineurs, leading to clinical improvement.
    • Psychological factors, such as reduced neurosis, are linked to biofeedback efficacy.
    • A conditioned vasomotor reflex, termed the 'relaxation reflex', was identified.
    • Further research is warranted to explore BF's application in other psychosomatic disorders.