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  • Title: Cholinergic blockade, septal lesions, and DRL performance in the rat.
    Author: Ellen P, Aitken WC, Sims T, Stahl JM.
    Journal: J Comp Physiol Psychol; 1975 Jul; 89(5):409-20. PubMed ID: 1194448.
    Abstract:
    Four experiments describing the effects of cholinergic blockade produced by systemic injection of either atropine sulfate or atropine methyl nitrate on the differential reinforcement of low rate (DRL) responding of rats are reported. It was shown that atropine sulfate injected either chronically or at high dosage suppressed DRL responding. Injected acutely, atropine sulfate produced disinhibitory effects. When atropine was injected either chronically or acutely into animals with septal lesions, there was suppression of responding. It was suggested that the specific behavioral outcome resulting from cholinergic blockade depends on the balance resulting from the competing peripheral and central effects of such blockade.
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