| Impulsive rats are less maternal. | |
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MedLine Citation:
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PMID: 20799285 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Early life environment and maternal care can have long-lasting effects on behavior and physiology. Previously, we found that compared to mother-reared (MR) female rats, rats reared without mothers, siblings, and nest, through artificially rearing (AR), show reduced levels of maternal behavior when they grow up. These effects can be reversed if AR pups are provided with extra "licking-like" tactile stimulation during the preweaning period [Gonzalez et al. [2001] Developmental Psychobiology, 38(1), 11-42]. We also found that AR rats are more action impulsive and have reduced attentional capacities in comparison to their MR siblings [Lovic, Fletcher, & Fleming, in preparation; Lovic & Fleming [2004] Behavioural Brain Research 148: 209-219]. However, it is unknown whether increased impulsivity contributes to reduced levels of maternal behaviors. The purpose of this study was to assess the relationship between impulsivity and maternal behavior in AR and MR rats. Female rats were reared with (MR) or without mothers (AR) and half of the AR rats received additional stroking stimulation. As adults, AR and MR rats were mated and maternal behavior towards their own pups was assessed. In addition, rats were assessed on impulsive action (differential reinforcement of low-rate schedule; DRL-20s). Consistent with previous findings, AR rats were both less maternal and more action impulsive than MR rats. Partial correlations revealed that impulsivity was inversely related to pup licking-impulsive rats were less maternal. |
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Authors:
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Vedran Lovic; Daniela J Palombo; Alison S Fleming |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Developmental psychobiology Volume: 53 ISSN: 1098-2302 ISO Abbreviation: Dev Psychobiol Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2010-12-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0164074 Medline TA: Dev Psychobiol Country: United States |
Other Details:
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Languages: eng Pagination: 13-22 Citation Subset: IM |
Copyright Information:
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© 2010 Wiley Periodicals, Inc. |
Affiliation:
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Department of Psychology, University of Michigan, 530 Church St., Ann Arbor, MI, USA. vlovic@umich.edu |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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