Sipos M L, Nyby J G, Serran M F
Department of Psychology, Lehigh University, Bethlehem, PA 18015.
Physiol Behav. 1993 Jul;54(1):171-4. doi: 10.1016/0031-9384(93)90061-j.
Male mice will emit ultrasounds to at least two chemosignals present in female mouse urine: a) an ephemeral unconditioned stimulus (UCS) present in freshly voided urine and b) a conditioned stimulus (CS) that remains after the UCS has disappeared. In this study, four phases examined the time frame over which the UCS disappeared. Urine that had been aged for either 12, 15, 18, or 24 h was compared for vocalization elicitation with fresh urine (which contains the UCS) and metabolic cage-collected urine ( which does not). Under the conditions utilized, significant pheromone fade-out occurred between 15 and 18 h.
a)新鲜排出尿液中存在的短暂非条件刺激(UCS),以及b)在非条件刺激消失后仍存在的条件刺激(CS)。在本研究中,四个阶段考察了非条件刺激消失的时间范围。将陈化12、15、18或24小时的尿液与新鲜尿液(含有非条件刺激)和代谢笼收集的尿液(不含有非条件刺激)进行发声诱导比较。在所采用的条件下,在15至18小时之间发生了显著的信息素消退。