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Operant procedures and the comatose patient.

M E Boyle, R D Greer

    Journal of Applied Behavior Analysis
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    Operant procedures using music were tested on patients in a vegetative coma. Music contingent on behavior showed effectiveness, particularly for patients with shorter coma durations, suggesting potential for coma rehabilitation.

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    Area of Science:

    • Neurology
    • Behavioral Science

    Background:

    • Patients in a vegetative coma often have limited treatment options.
    • Operant conditioning principles are rarely applied in coma rehabilitation.

    Purpose of the Study:

    • To assess the efficacy of operant procedures with contingent music in patients with vegetative coma.
    • To explore the use of behavioral interventions in a medical area with limited prior application.

    Main Methods:

    • Three patients in vegetative coma (6, 10, 38 months) were assessed using discrete trial procedures.
    • Multiple baselines across three behaviors (head/finger movement, eye movement, mouth movement) were employed.
    • An ABAB design with contingent music (preferred excerpts) was used for treatment and withdrawal phases.

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    Main Results:

    • Contingent music successfully elicited all three targeted behaviors in the patient with the shortest coma duration (6 months).
    • The treatment was less effective for patients with longer coma durations (10 and 38 months), affecting fewer than three behaviors.
    • Behavioral responses varied based on coma duration and the specific behavior targeted.

    Conclusions:

    • Operant procedures, particularly contingent music, show potential as a rehabilitation strategy for patients in vegetative coma.
    • Treatment efficacy may be influenced by the duration of the coma, with better outcomes in earlier stages.
    • Further research is warranted to explore and refine these behavioral interventions for coma patients.