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Cites:

1

Information Journal Paper

Title

THE SPATIAL LEARNING AND MEMORY PERFORMANCE IN METHAMPHETAMINE–SENSITIZED AND WITHDRAWN RATS

Pages

  234-239

Abstract

 Objective(s): There is controversial evidence about the effect of methamphetamine (METH) on SPATIAL MEMORY. We tested the time- dependent effects of METH on spatial short-term (working) and long-term (reference) memory in METH –sensitized and withdrawn rats in the Morris water maze.Materials and Methods: Rats were sensitized to METH (2 mg/kg, daily/5 days, SC). Rats were trained in water maze (4 trials/day/ for 5 days). Probe test was performed 24 hr after training. Two days after probe test, working memory training (2 trials/day/ for 5 days) was conducted. Acquisition-retention interval was 75 min. The treatment was continued per day 30 and 120 min before the test. Two groups of METH –sensitized rats were trained in reference memory after a longer period of withdrawal (30 days).Results: Sensitized rats exhibited significantly longer escape latencies on the training, spent significantly less time in the target zone (all, P<0.05), and their working memory impaired 30 min after injection. While, METH has no effect on the spatial learning process 120 min after injection, and rats spent significantly less time in the target zone (P<0.05), as well it has no effect on working memory. Also, impairment of reference memory persisted after prolonged abstinence.Conclusion: Our findings indicated that METH impaired spatial learning and memory 30 min after injection, but spared spatial learning, either acquisition or retention of spatial working, but partially impaired retention of spatial reference memory following 120 min after injection in sensitized rats, which persisted even after prolonged abstinence.

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    • Cite

    APA: Copy

    BIGDELI, IMANOLLAH, NIKFARJAM HAFT ASIA, MASOMEH, MILADI GORJI, HOSSEIN, & FADAEI, ATEFEH. (2015). THE SPATIAL LEARNING AND MEMORY PERFORMANCE IN METHAMPHETAMINE–SENSITIZED AND WITHDRAWN RATS. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 18(3), 234-239. SID. https://sid.ir/paper/638244/en

    Vancouver: Copy

    BIGDELI IMANOLLAH, NIKFARJAM HAFT ASIA MASOMEH, MILADI GORJI HOSSEIN, FADAEI ATEFEH. THE SPATIAL LEARNING AND MEMORY PERFORMANCE IN METHAMPHETAMINE–SENSITIZED AND WITHDRAWN RATS. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2015;18(3):234-239. Available from: https://sid.ir/paper/638244/en

    IEEE: Copy

    IMANOLLAH BIGDELI, MASOMEH NIKFARJAM HAFT ASIA, HOSSEIN MILADI GORJI, and ATEFEH FADAEI, “THE SPATIAL LEARNING AND MEMORY PERFORMANCE IN METHAMPHETAMINE–SENSITIZED AND WITHDRAWN RATS,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 18, no. 3, pp. 234–239, 2015, [Online]. Available: https://sid.ir/paper/638244/en

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