Effect of Varying Sucrose Concentration on Macrobehavioral Aspects of Licking in the Rat

Jeffrey W. Fagen, Robert F. Rycek, Elsbeth G. Ritz, Gary E. Shoemaker

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3 Scopus citations


Rats (eight male, eight female) were trained to lick 32% and 4% sucrose solutions for three minutes per day on four consecutive days. Measures of the number of licks revealed robust positive and negative contrast effects. Analysis of the burst-pause pattern of licking revealed that the decrease in licking characteristic of the negative contrast effect resulted from a decrease in the number of bursts, while the increase in licking characteristic of the positive contrast effect was the result of a shortening of the interburst interval.

Original languageEnglish (US)
Pages (from-to)181-187
Number of pages7
JournalJournal of General Psychology
Issue number2
Publication statusPublished - Oct 1983


ASJC Scopus subject areas

  • Gender Studies
  • Experimental and Cognitive Psychology
  • Arts and Humanities (miscellaneous)

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