Ultrasonic Vocalizations in Mice During Exploratory Behavior are Context-Dependent

Mun, Ho-Suk and Lipina, Tatiana V. and Roder, John C. (2015) Ultrasonic Vocalizations in Mice During Exploratory Behavior are Context-Dependent. Frontiers in Behavioral Neuroscience, 9. ISSN 1662-5153

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Abstract

While rat ultrasonic vocalizations (USVs) are known to vary with anticipation of an aversive vs. positive stimulus, little is known about USVs in adult mice in relation to behaviors. We recorded the calls of adult C57BL/6J male mice under different environmental conditions by exposing mice to both novel and familiar environments that varied in stress intensity through the addition of bright light or shallow water. In general, mouse USVs were significantly more frequent and of longer duration in novel environments. Particularly, mice in dimly-lit novel environments performed more USVs while exhibiting unsupported rearing and walking behavior, and these calls were mostly at high frequency. In contrast, mice exhibited more low frequency USVs when engaging in supported rearing behavior in novel environments. These findings are consistent with data from rats suggesting that low-frequency calls are made under aversive conditions and high-frequency calls occur in non-stressful conditions. Our findings increase understanding of acoustic signals associated with exploratory behaviors relevant to cognitive and motivational aspects of behavior.

Item Type: Article
Subjects: Open Article Repository > Biological Science
Depositing User: Unnamed user with email support@openarticledepository.com
Date Deposited: 24 Feb 2023 06:58
Last Modified: 25 May 2024 08:03
URI: http://journal.251news.co.in/id/eprint/647

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