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Taste aversion following backward conditioning procedures in preweanling and adult rats
Author(s) -
Franchina Joseph J.,
Dietz Sheri
Publication year - 1981
Publication title -
developmental psychobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.055
H-Index - 93
eISSN - 1098-2302
pISSN - 0012-1630
DOI - 10.1002/dev.420140602
Subject(s) - taste aversion , conditioning , saline , psychology , zoology , lithium chloride , medicine , endocrinology , physiology , developmental psychology , taste , biology , chemistry , mathematics , neuroscience , statistics , organic chemistry
Abstract Laboratory rats, 18 and 90 days old, received an intraperitoneal injection (2% body weight) of .15 M lithium chloride or .9% saline 10 or 30 min before 15‐min access to 12% sucrose. Additional control groups received LiCl injection followed by tap water access. Testing with a 2‐bottle choice procedure revealed reliable aversion effects for both age groups at each toxicosis‐flavor interval. Adult rats showed reliably greater persistence of aversion following training with the 10‐ than with the 30‐min interval. Rat pups showed no reliable differences in aversion across training intervals. Reliably greater aversion effects occurred for adults than for pups following training at the 10‐min interval. Following training at the 30‐min interval a similar reliable age effect occurred on Test Trial 1; but from Trial 2 onward the magnitude of aversion was similar for pups and adult rats.