| Abstract: | Reports an error in "Previous experience disrupts atropine-induced stereotyped 'trapping' in rats" by Terry L. DeVietti, Sergio M. Pellis, Vivien C. Pellis and Philip Teitelbaum (Behavioral Neuroscience, 1985Dec], Vol 996], 1128-1141). Three lines were erroneously repeated. In the first paragraph on p. 1138, the third sentence should read as follows: "Further, at the high doses that result in stereotypic trapping there are reliable changes in both cortical and hippocampal activity (Schallert et al., 1980; Shoham, Chen, DeVietti, & Teitelbaum, 1985; Vanderwolf, 1975)." (The following abstract of the original article appeared in record 1986-13974-001.) Three experiments with 64 Long-Evans hooded rats investigated atropine-induced stereotypic trapping reported by T. Schallert et al (see record 1981-07548-001). Exps I-II showed that such trapping was disrupted by previous experience with the specific trapping task or the test context alone. Exp III showed that, in response to the test context, specific behaviors were altered in Ss that were experienced with the context. Inexperienced Ss treated with intraperitoneal atropine (60 mg/kg) moved slowly and showed a strong thigmotaxis to surfaces with the body, particularly the snout. The hindquarters did not cooperate well with the movements of the forequarters. In contrast, atropine-treated Ss familiar with the context moved with medium-speed, coordinated movements, and showed a reduced tendency for surface contact with body and snout. These reactions of drugged Ss were exaggerated forms of those of undrugged Ss to the unfamiliar and familiar context, respectively. Results indicate that stereotypic trapping develops as a consequence of an interaction between the adaptive responses of the rat to a novel environment and atropine. (37 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
