Social Transmission of Fear in Rats: The Role of 22-kHz Ultrasonic Distress Vocalization

Abstract

BACKGROUND Social alarm calls alert animals to potential danger and thereby promote group survival. Adult laboratory rats in distress emit 22-kHz ultrasonic vocalization (USV) calls, but the question of whether these USV calls directly elicit defensive behavior in conspecifics is unresolved. METHODOLOGY/PRINCIPAL FINDINGS The present study investigated… (More)
DOI: 10.1371/journal.pone.0015077

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