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Pre-trial cocaine and performance in rat.

M Torrelio, J A Izquierdo

    Psychopharmacologia
    |February 2, 1976
    PubMed
    Summary

    Cocaine administration enhances performance in rats but does not improve memory retention. The positive effects on conditioned responses disappear once the drug

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    Area of Science:

    • Neuroscience
    • Behavioral Pharmacology

    Background:

    • Cocaine is a stimulant with known effects on the central nervous system.
    • Understanding drug effects on learning and performance is crucial in behavioral neuroscience.

    Purpose of the Study:

    • To investigate the impact of acute cocaine administration on performance and retention in a conditioned response task.
    • To differentiate between performance enhancement and memory consolidation effects of cocaine.

    Main Methods:

    • Rats (naive, high-performance, and low-performance trained) received cocaine (10 mg/kg i.p.) or saline pre-trial.
    • Performance was assessed via conditioned responses.
    • Retention was evaluated after the drug's effects subsided.

    Main Results:

    • Cocaine significantly improved performance in all rat groups compared to controls.
    • The performance enhancement was transient; conditioned responses decreased to baseline levels once cocaine effects wore off.
    • No significant improvement in retention was observed.

    Conclusions:

    • Cocaine acutely enhances performance in a conditioned response task in rats.
    • The observed behavioral improvements are attributed to performance facilitation rather than enhanced memory consolidation or retention.
    • These findings highlight the dissociative effects of cocaine on performance versus memory.

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