Abstract
In Experiments 1 and 2, rats were exposed to two compound flavors, AX and BX, containing one flavor in common (X). Following this exposure phase, an aversion was conditioned to A in the experimental group by pairing its consumption with an injection of lithium, while a control group drank A without being poisoned. The effect of this treatment was to establish B as a conditioned inhibitor. In Experiment 1, experimental animals were slower than controls to condition an aversion to B when its consumption was paired with lithium (a retardation test of conditioned inhibition). In Experiment 2, B alleviated the suppression of intake of another flavor previously paired with lithium (a summation test). Experiments 3 and 4 established that these effects depended upon prolonged prior exposure to AX and BX.
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This research was supported by grants from Kutxa-UPV/EHU to A.E. and from the Science and Engineering Research Council to N.J.M.
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Espinet, A., Iraola, J.A., Bennett, C.H. et al. Inhibitory associations between neutral stimuli in flavor-aversion conditioning. Animal Learning & Behavior 23, 361–368 (1995). https://doi.org/10.3758/BF03198935
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DOI: https://doi.org/10.3758/BF03198935