@article{oai:repo.qst.go.jp:00047052,
 author = {Kato, Yoko and Gokan, Hayato and Oh-Nishi, Arata and Suhara, Tetsuya and Watanabe, Shigeru and Minamimoto, Takafumi and 加藤 陽子 and 大西 新 and 須原 哲也 and 南本 敬史},
 journal = {Behavioural brain research},
 month = {Sep},
 note = {Vocalizations of common marmoset (Callithrix jacchus) were examined under experimental situations related to fear or anxiety. When marmosets were isolated in an unfamiliar environment, they frequently vocalized "tsik-egg" calls, which were the combination calls of 'tsik' followed by several 'egg'. Tsik-egg calls were also observed after treatment with the anxiogenic drug FG-7142 (20mg/kg, sc). In contrast, when marmosets were exposed to predatory stimuli as fear-evoking situations, they frequently vocalized tsik solo calls as well as tsik-egg calls. These results suggest that marmosets dissociate the vocalization of tsik-egg and tsik calls under conditions related to fear/anxiety; tsik-egg solo vocalizations were emitted under anxiety-related conditions (e.g., isolation and anxiogenic drug treatment), whereas a mixed vocalization of tsik-egg and tsik was emitted when confronted with fear-provoking stimuli (i.e., threatening predatory stimuli). Tsik-egg call with/without tsik can be used as a specific vocal index of fear/anxiety in marmosets, which allows us to understand the neural mechanism of negative emotions in primate.},
 pages = {43--52},
 title = {Vocalizations associated with anxiety and fear in the common marmoset (Callithrix jacchus).},
 volume = {275},
 year = {2014}
}