Ultrasonic Vocalizations of Rats (Rattus norvegicus) During Mating, Play, and Aggression: Behavioral Concomitants, Relationship to Reward, and Self-Administration of Playback
Ultrasonic Vocalizations of Rats (Rattus norvegicus) During Mating, Play, and Aggression: Behavioral Concomitants, Relationship to Reward, and Self-Administration of Playback
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DOI：
10.1037/a0012889
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发表时间：
2008-11-01
影响因子：
1.4
通讯作者：
Panksepp, Jaak
中科院分区：
文献类型：
--
作者：
Burgdorf, Jeffrey;Kroes, Roger A.;Panksepp, Jaak
大鼠（Rattus norvegicus）在其一生中发出各种超声波，反映了不同形式的情绪唤醒和伴随的情感状态。在这项研究中，在交配、攻击、同种和异种（被称为“挠痒”）打闹行为中，超声波发声的高频录音被记录下来。我们发现，频率调制的50 khz叫声（颤音和步叫声）与交配、玩耍和攻击期间的积极食欲行为呈正相关。这些呼叫也与这些社会接触的奖励值呈正相关。然而，恒定频率（即平坦）的50 khz叫声与食欲行为或奖励无关。相比之下，22 khz的叫声与交配、玩耍和攻击期间的厌恶/退缩行为呈正相关。最后，我们发现大鼠自我控制播放频率调制的50 khz颤音呼叫，并避免播放22 khz呼叫。播放50千赫的电话或磁带的嘶嘶声是中性的。这些结果表明，频率调制的50 khz呼叫指数在大鼠中具有积极的价值，食欲和社交情绪状态。
Rats (Rattus norvegicus) emit a variety of ultrasonic vocalizations throughout their lifespan that reflect different forms of emotional arousal and accompanying affective states. In this study, high frequency recordings of ultrasonic vocalizations were made during mating, aggression, and both conspecific and heterospecific (dubbed "tickling") rough-and-tumble play behavior. We found that frequency modulated 50-kHz calls (trills and step calls) were positively correlated with positively valenced appetitive behavior during mating, play, and aggression. These calls were also positively correlated with the reward value of these social encounters. However, constant frequency (i.e., flat) 50-kHz calls were not related to appetitive behaviors or reward. In contrast, 22-kHz calls were positively related to aversive/withdrawal behaviors during mating, play, and aggression. Finally, we found that rats self-administered playback of frequency modulated 50-kHz trill calls and avoided playback of 22-kHz calls. Playback of flat 50-kHz calls or tape hiss was neutral. These results suggest that frequency modulated 50-kHz calls index a positively valenced, appetitive, social-emotional state in rats.