Moye T B, Rudy J W
Dev Psychobiol. 1987 Jul;20(4):405-14. doi: 10.1002/dev.420200405.
Hooded rats from 15 to 30 days of age were trained with a Pavlovian trace fear conditioning procedure in order to study the development of their capacity to learn associations between events separated in time. For both the auditory and visual systems, the associative processes necessary to learn about temporally contiguous events emerged earlier during ontogenesis than the processes necessary to integrate events separated in time. Furthermore, the ability of the rats to integrate events separated by increasingly long intervals continued to improve as they got older. We suggest that the emergence of the capacity to integrate temporally separate events reflects the maturation of memory processes that retain representations of stimulus events over time, and that these processes continue to mature for a considerable period after the basic associative processes have become functional.
对15至30日龄的有帽大鼠进行巴甫洛夫痕迹恐惧条件反射训练，以研究它们学习时间上分离的事件之间关联的能力发展。对于听觉和视觉系统，学习时间上相邻事件所需的联想过程在个体发育过程中比整合时间上分离的事件所需的过程出现得更早。此外，随着大鼠年龄的增长，它们整合间隔越来越长的事件的能力持续提高。我们认为，整合时间上分离的事件的能力的出现反映了随着时间保留刺激事件表征的记忆过程的成熟，并且在基本联想过程开始起作用后的相当长一段时间内，这些过程仍在继续成熟。
