Abstract
High, low, and control alcohol-sensitive (HAS, LAS, CAS, respectively) rats were tested for their perception of the taste of alcohol using the taste reactivity test. Reactivity tests with a single concentration of sucrose and quinine were also done. After initial taste reactivity, all rats were tested for alcohol consumption in a standard two-bottle test (water in the second bottle). Postconsumption taste reactivity tests completed the experiment. Results indicated that HAS, LAS, and CAS rats did not differ significantly in their taste reactivity response to a range of alcohol concentrations (5–40%), nor did they differ significantly in response to sucrose or quinine. Reactivity responses were similar for each group before and after the consumption tests. Despite the lack of line differences in taste reactivity, HAS and LAS rats consumed significantly less alcohol than the CAS rats during the two-bottle access tests. The present results are in contrast to research done with rats selectively bred for alcohol consumption (Alcohol Preferring and Nonpreferring rats, High Alcohol Drinking and Low Alcohol Drinking rats), which exhibit clear line differences in patterns of reactivity changes following alcohol access. The selection phenotype of alcohol sensitivity appears to be independent of rats' behavioral response to the taste of alcohol.
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