Preference threshold of the white rat for sucrose

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28 animals were given a series of 4-min. drinking tests in a 2-choice situation, sucrose solution vs. water. Each test was preceded by forced-sampling of both liquids. The concentration at which 75% of the group made more tongue contacts with the sucrose solution was taken as the preference threshold. This concentration was .32 gm/100 cc of solution. This determination provides a baseline useful for the planning and evaluation of studies designed to map various sucrose isohedons for the rat on the basis of observations in the same test situation. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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