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  • Title: Anti-muscarinic drug effects in a swim-to-platform test: dose-response relations.
    Author: Vanderwolf CH.
    Journal: Behav Brain Res; 1991 Aug 29; 44(2):217-9. PubMed ID: 1751013.
    Abstract:
    Rats were given subcutaneous or intraperitoneal injections of scopolamine, intraperitoneal injections of atropine, or control injections, and trained on a simple swim-to-platform task. Errors were proportional to dose for both drugs over a wide range. No difference was found in the effects of intraperitoneal or subcutaneous scopolamine but scopolamine was 25 times more potent than atropine. The potency of both drugs in impairing swim-to-platform behavior was similar to their potency in abolishing the cholinergic component of neocortical low voltage fast activity. The electrocortical effect of anticholinergic drugs may be a major factor in the behavioral impairment they produce.
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