Document Detail

Maternal responsiveness and maternal selectivity in domestic sheep and goats: the two facets of maternal attachment.
MedLine Citation:
PMID:  17186516     Owner:  NLM     Status:  MEDLINE    
Sheep and goats rapidly establish an exclusive relationship with their neonate following contact with it during a sensitive period of maternal responsiveness induced by the physiological events occurring at parturition. The data concerning the sensory, physiological, and neurobiological factors involved in the activation of both maternal responsiveness and the establishment of selective nursing indicates that these processes are activated simultaneously by the combined action of two main factors, the prepartum rise in circulating estrogen and the vaginocervical stimulation (VCS) caused by fetus expulsion. On the one hand, these two factors act on a neural network including the main olfactory system (MOB), the medial preoptic area (MPOA), and the paraventricular nucleus of the hypothalamus (PVN) to induce maternal responsiveness towards any neonate. The intracerebral release of oxytocin (OT) from the PVN, and the triggering of olfactory attraction for amniotic fluid (AF) are key elements in this process. On the other hand, VCS at birth also sets the MOB ready to memorize the individual odor of the neonate, through the release of peptides and neurotransmitters (noradrenaline and acetylcholine). In addition to the MOB, the network involved in recognition mainly includes the medial and cortical amygdala. Across consolidation processes, reorganization occurs in the network engaged in lamb recognition. Whether this memorization may be potentiated by other sensory cues is not known. The identification of the chemosensory compounds involved in the attraction for AF and in the recognition of the neonate is important for understanding the mechanisms of maternal attachment.
Pascal Poindron; Frédéric Lévy; Matthieu Keller
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Developmental psychobiology     Volume:  49     ISSN:  0012-1630     ISO Abbreviation:  Dev Psychobiol     Publication Date:  2007 Jan 
Date Detail:
Created Date:  2006-12-28     Completed Date:  2007-03-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0164074     Medline TA:  Dev Psychobiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  54-70     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2006 Wiley Periodicals, Inc.
Laboratoire de Comportement, Neurobiologie et Adaptation, UMR 6175, INRA/CNRS/Université de Tours/Haras Nationaux, 37380 Nouzilly, France.
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MeSH Terms
Behavior, Animal*
Maternal Behavior*
Object Attachment*
Parturition / physiology,  psychology*
Recognition (Psychology) / physiology*

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