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  • Title: Serotonin influences the behavioral recovery of rats following nucleus basalis lesions.
    Author: Markowska AL, Wenk GL.
    Journal: Pharmacol Biochem Behav; 1991 Apr; 38(4):731-7. PubMed ID: 1651515.
    Abstract:
    The present study investigated the effects of serotonergic depletion upon the performance of rats with lesions of the nucleus basalis magnocellularis (NBM) in a nonspatial memory task. NBM lesions were made by injections of ibotenic acid. Serotonin was depleted by systemic injections of p-chloroamphetamine (PCA). After four weeks of testing, the choice accuracy of PCA rats was not different from that of control rats (CON), while the choice accuracy of NBM rats and rats with combined treatment (NBM + PCA) was significantly lower than CON rats, but not different from each other. After prolonged testing, performance improved in NBM rats, but not in NBM + PCA rats indicating that simultaneous loss of both cholinergic and serotonergic neurotransmission produced a significantly longer lasting behavioral deficit than the loss of cholinergic neurotransmission alone.
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