Peters R H, Koch P C, Blythe B L, Sufka K J
Department of Psychology, Iowa State University, Ames 50011.
Physiol Behav. 1988;44(6):749-51. doi: 10.1016/0031-9384(88)90056-x.
Brief 50-kHz ultrasonic vocalizations are emitted by male rats during copulatory encounters with sexually receptive females. These vocalizations also occurred during pairings with estrous females in male rats whose copulatory behaviors had been associatively inhibited by LiCl-induced aversive contingencies. Longer 22-kHz calls, typically emitted during the postejaculatory refractory period, were not observed in these males. These results demonstrate a dissociation of behaviors that were (mounts, intromissions, and ejaculations) and were not (50-kHz vocalizations) associatively inhibited by LiCl.
在与处于性接受期的雌鼠交配时,雄鼠会发出短暂的50千赫超声波叫声。在那些交配行为因氯化锂诱导的厌恶条件而受到联合抑制的雄鼠与处于发情期的雌鼠配对时,也会出现这些叫声。在这些雄鼠中未观察到通常在射精后不应期发出的较长的22千赫叫声。这些结果表明,(爬跨、插入和射精)行为与(50千赫叫声)行为之间存在分离,前者受到氯化锂的联合抑制,而后者未受抑制。