Institut des Neurosciences Paris-Saclay (NeuroPSI), UMR 9197, Université Paris-Saclay, Centre National de la Recherche Scientifique, 91190 Gif-sur-Yvette, France.
Laboratoire de Psychologie Sociale et Cognitive, UMR 6024, Université Clermont Auvergne, Centre National de la Recherche Scientifique, F-63000 Clermont-Ferrand, France.
Learn Mem. 2021 Jan 15;28(2):40-43. doi: 10.1101/lm.051789.120. Print 2021 Feb.
The present study evaluates the updating of long-term memory for duration. After learning a temporal discrimination associating one lever with a standard duration (4 sec) and another lever with both a shorter (1-sec) and a longer (16-sec) duration, rats underwent a single session for learning a new standard duration. The temporal generalization gradient obtained 24 h later showed a modification in long-term memory for durations longer than the standard but only when the new duration was longer than the one initially learned. The effect was confirmed for another set of durations (0.5-2-8 sec). Our study demonstrates asymmetry in updating long-term memory for time.
本研究评估了对时长的长期记忆更新。在学习了一个将一个杠杆与标准时长（4 秒）关联，而另一个杠杆与更短（1 秒）和更长（16 秒）时长关联的时间辨别任务后，大鼠接受了一个新的标准时长学习的单个训练课程。24 小时后获得的时间泛化梯度显示，在标准时长以上的时长的长期记忆发生了变化，但仅当新时长长于最初学习的时长时才会发生这种变化。对于另一组时长（0.5-2-8 秒），该效应得到了证实。我们的研究表明，对时间的长期记忆更新存在不对称性。
