Journal article
Separable Brainstem and Forebrain Contributions to Ultrasonic Vocalizations in Infant Rats
Behavioral neuroscience, Vol.119(4), pp.1111-1117
08/2005
DOI: 10.1037/0735-7044.119.4.1111
PMID: 16187838
Abstract
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.
Details
- Title: Subtitle
- Separable Brainstem and Forebrain Contributions to Ultrasonic Vocalizations in Infant Rats
- Creators
- Jessica E Middlemis-Brown - Program in Behavioral and Cognitive Neuroscience, Department of Psychology, University of IowaEric D Johnson - Program in Behavioral and Cognitive Neuroscience, Department of Psychology, University of IowaMark S Blumberg - Program in Behavioral and Cognitive Neuroscience, Department of Psychology, University of Iowa
- Resource Type
- Journal article
- Publication Details
- Behavioral neuroscience, Vol.119(4), pp.1111-1117
- DOI
- 10.1037/0735-7044.119.4.1111
- PMID
- 16187838
- NLM abbreviation
- Behav Neurosci
- ISSN
- 0735-7044
- eISSN
- 1939-0084
- Publisher
- American Psychological Association
- Language
- English
- Date published
- 08/2005
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute; Biology
- Record Identifier
- 9984002477102771
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