[The realization of food-acquisition behavior in rats against a background of multiple injections of enkephalin-like peptides into the neostriatum].

Microinjections of Tyr-D-Ala-Gly-Phe-D-Leu-Arg, Tyr-D-Orn-Gly-Phe-NH2, Tyr-D-Arg-Gly-PheOEt induced blockade of alimentary conditioning in the Skinner's box in rats. The data obtained suggest an involvement of the enkephalinergic neostriatal system in the motor-conditioned alimentary behaviour.