Abstract
Induction of behavior by chemical extracts of trained rat brain has been observed in two types of choice situations. (1) In a symmetric (left/right) choice situation, the induced bias may be either positively or negatively related to that learned by the donors, depending strongly upon dosage and the exact experimental conditions. This makes the effect unstable and difficult to replicate with this procedure. Inversion effects appear to predominate in the observed dosage range. (2) In an asymmetric (two-chamber) choice situation, differing in operant tasks, wall colors, and other cues, a consistently positive effect with a simpler dose dependence was observed. The difference between these two cases is attributed to the lack of specific stimuli identifying the behavioral choices in the symmetric situation, and the abundance of specific stimulus cues in the asymmetric case.
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Selected References
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- Rosenblatt F., Farrow J. T., Rhine S. The transfer of learned behavior from trained to untrained rats by means of brain extracts. II. Proc Natl Acad Sci U S A. 1966 Apr;55(4):787–792. doi: 10.1073/pnas.55.4.787. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rosenblatt F., Miller R. G. Behavioral assay procedures for transfer of learned behavior by brain extracts, ii. Proc Natl Acad Sci U S A. 1966 Dec;56(6):1683–1688. doi: 10.1073/pnas.56.6.1683. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ungar G., OcegueraNavarro C. Transfer of habituation by material extracted from brain. Nature. 1965 Jul 17;207(994):301–302. doi: 10.1038/207301a0. [DOI] [PubMed] [Google Scholar]