| Separable brainstem and forebrain contributions to ultrasonic vocalizations in infant rats. | |
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MedLine Citation:
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PMID: 16187838 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Competing views persist concerning the functional significance of ultrasonic vocalizations (USVs) emitted by infant rats. One perspective holds that USVs result from an emotional state of fear and anxiety, the adult expression of which depends in part on forebrain mechanisms. Here the authors examine whether pups lacking forebrain input are capable of emitting USVs. Aspirations of neocortex and hippocampus or precollicular decerebrations were performed on 8-day-old rats. After the rats recovered, USV responses were recorded for 10 min at room temperature (Phase 1) followed by enhanced cooling for 20 min (Phase 2). Experimental pups emitted significantly fewer USVs than shams during Phase 1 but vocalized at similar rates during Phase 2. Thus, in infants, brainstem neural circuitry is sufficient to support emission of USVs. |
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Authors:
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Jessica E Middlemis-Brown; Eric D Johnson; Mark S Blumberg |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Behavioral neuroscience Volume: 119 ISSN: 0735-7044 ISO Abbreviation: Behav. Neurosci. Publication Date: 2005 Aug |
Date Detail:
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Created Date: 2005-09-28 Completed Date: 2006-01-23 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8302411 Medline TA: Behav Neurosci Country: United States |
Other Details:
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Languages: eng Pagination: 1111-7 Citation Subset: IM |
Copyright Information:
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(c) 2005 APA |
Affiliation:
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Program in Behavioral and Cognitive Neuroscience, Department of Psychology, University of Iowa, Iowa City, IA 52242, US. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Analysis of Variance Animals Animals, Newborn Behavior, Animal Brain Stem / physiology* Decerebrate State / physiopathology Female Male Prosencephalon / physiology* Rats Rats, Sprague-Dawley Temperature Time Factors Ultrasonics* Vocalization, Animal / physiology* |
| Grant Support | |
ID/Acronym/Agency:
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HD38708/HD/NICHD NIH HHS; MH50701/MH/NIMH NIH HHS; MH66424/MH/NIMH NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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