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Title: Distress vocalization delay in the neonate lamb as a neurobehavioral assessment tool
Contributor(s): Morton, Christine (author)orcid ; Hinch, Geoffrey (author)orcid ; Small, Alison (author)
Publication Date: 2017
DOI: 10.1002/dev.21517
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Abstract: Acoustic features of infant distress vocalizations including latency and rate of emission are used as indices of neurological deficit and integrity in human and rodent neonates. This paper investigates the relationship between temporal characteristics of distress calls, elicited by an isolation stimulus, and indicators of neurobehavioral development over 12 hr postpartum in the neonate lamb. Delayed vocalization initiation was found to be associated with poor locomotor and orientation behavior reflecting the capacity of the lamb to reunite with and follow its dam, and a lowered rate of signal emission following commencement of vocalization. Animals demonstrating delayed vocalization initiation also appeared more likely to be of a birth weight predisposed to fetal distress, and to urinate when exposed to a novel environment. Based on these preliminary studies, we propose that compromised emission of vocal signals is indicative of neurobehavioral deficit in the neonate lamb.
Publication Type: Journal Article
Source of Publication: Developmental Psychobiology, 59(4), p. 523-534
Publisher: John Wiley & Sons Inc
Place of Publication: United States of America
ISSN: 1098-2302
Field of Research (FOR): 111401 Foetal Development and Medicine
110903 Central Nervous System
070206 Animal Reproduction
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
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Appears in Collections:Journal Article
School of Environmental and Rural Science

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