Rats emit unique distress calls in social inequality conditions
Rats emit unique distress calls in social inequality conditions
复制标题
老鼠在社会不平等条件下发出独特的求救信号
DOI:
10.1101/2022.02.22.481162
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Masahide Yoshida & Tatsushi Onaka
中科院分区:
文献类型:
--
作者:
Shota Okabe;Yuki Takayanagi;Masahide Yoshida & Tatsushi Onaka
Humans show aversion toward inequality of social reward, and this aversion plays important roles for the establishment of social cooperation. However, it has remained unknown whether commonly used experimental animals show negative responses to social reward inequality. In this study, we found that rats showed bonding-like behavior to an affiliative human who repeatedly stroked the rats. In addition, these rats emitted distress calls, an index of negative emotion, when an affiliative human stroked another rat in front of them. These distress calls had acoustic characteristics different from those emitted in response to physical stress stimuli such as air-puff. Rats emitted calls with higher frequency (28 kHz) and shorter durations (0.05 sec) in an inequality condition than the frequency and durations of calls emitted when receiving air-puff. Our results suggested that rats exhibited negative emotion with unique distress calls in response to a social inequality condition.
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