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Related Experiment Videos

Amphetamine withdrawal: a behavioral evaluation.

L Kokkinidis, R M Zacharko, H Anisman

    Life Sciences
    |April 28, 1986
    PubMed
    Summary

    Amphetamine withdrawal significantly depressed self-stimulation and increased immobility, suggesting motivational deficits. Motor and arousal systems were largely unaffected by amphetamine withdrawal in mice.

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    Area of Science:

    • Neuroscience
    • Behavioral Pharmacology
    • Psychopharmacology

    Background:

    • Chronic amphetamine (AMPH) administration can lead to significant behavioral alterations.
    • Understanding the neurobiological underpinnings of AMPH withdrawal is crucial for addiction research.

    Purpose of the Study:

    • To investigate the behavioral effects of withdrawal from long-term amphetamine treatment.
    • To differentiate between motivational and motor/arousal deficits during amphetamine withdrawal.

    Main Methods:

    • Mice underwent chronic amphetamine treatment.
    • Behavioral assessments included intracranial self-stimulation (ICSS), forced swim test (FST), shuttle escape performance, acoustic startle, and locomotor activity.

    Main Results:

    • Amphetamine withdrawal severely depressed ICSS response rates.
    • Withdrawal increased immobility duration in the FST.
    • Shuttle escape, acoustic startle, and locomotor activity showed minimal changes post-withdrawal.

    Conclusions:

    • Amphetamine withdrawal induces deficits in motivational processes, as evidenced by impaired ICSS and increased FST immobility.
    • These motivational changes are distinct from alterations in motor or arousal mechanisms.
    • Findings suggest that amphetamine withdrawal impacts reward circuitry rather than general motor function or arousal levels.

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