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Exposure to maternal odor enhances intake of a taste that mimicks the sensory attributes of ethanol

Authors
  • Ifran, María C.1, 2
  • Suárez, Andrea B.3
  • Loarte, Andrea N.1, 2
  • Pautassi, Ricardo M.3
  • Kamenetzky, Giselle V.1, 2
  • 1 Universidad de Buenos Aires, Combatientes de Malvinas 3150, Buenos Aires, CP 1427, Argentina , Buenos Aires (Argentina)
  • 2 Universidad Abierta Interamericana, Buenos Aires, Argentina , Buenos Aires (Argentina)
  • 3 Instituto de Investigaciones Médicas M. y M. Ferreyra (INIMEC-CONICET-Universidad Nacional de Córdoba), Friuli 2434, Córdoba, CP 5000, Argentina , Córdoba (Argentina)
Type
Published Article
Journal
Learning & Behavior
Publisher
Springer US
Publication Date
Jul 01, 2019
Volume
47
Issue
4
Pages
302–309
Identifiers
DOI: 10.3758/s13420-019-00373-w
Source
Springer Nature
Keywords
License
Yellow

Abstract

Early exposure to ethanol increases subsequent acceptance of this drug. Little attention, however, has been devoted to the interaction of the taste of the drug with other, familiar or non-familiar, odors contingent with ethanol access, particularly early in ontogeny. This study assessed the influence of exposure to maternal odor on intake and grasp responses to an artificial nipple providing a solution (a sucrose-quinine mix) that emulates the taste of alcohol, in 4-day-old rat pups. The results showed that the mother’s odor enhanced intake from and seeking responses to an artificial nipple that provided the solution that mimicked the taste of alcohol (Experiment 1). This pattern of results was not evoked by the odor of an unrelated dam (Experiment 2), nor was it observed when the nipple delivered water. The main new finding of the present study is that 4-day-old rats tested in the presence of the mother (and hence exposed to her odor cues) exhibited enhanced seeking and intake of a solution that mimics the chemosensory properties of ethanol.

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