Summary
In a shock-free procedure, goldfish were trained to acquire a preference for quinine or acetic acid for which they have an innate repulsion. Recipients of brain extracts taken from trained donors showed a positive reaction to the previously dislike taste quality. The change in reaction was observed between the second and the seventh day after injection. It was not exhibited by recipients of brain extracts prepared from untrained donors.
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Supported by Deutsche Forschungsgemeinschaft (Sonderforschungsbereich 33).
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Zippel, H.P., Domagk, G.F. Transfer of taste preference from trained goldfish (Carassius auratus) into untrained recipients. Pflugers Arch. 323, 258–264 (1971). https://doi.org/10.1007/BF00586388
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DOI: https://doi.org/10.1007/BF00586388