ISSN 0439-755X
CN 11-1911/B
主办：中国心理学会
　　　中国科学院心理研究所
出版：科学出版社

心理学报 ›› 1997, Vol. 29 ›› Issue (2): 202-207.

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不同刺激强度训练后一日龄小鸡的记忆形成

郑丽;王建军;翁旭初;匡培梓   

  1. 南京大学，中国科学院心理研究所
  • 出版日期:1997-06-25 发布日期:1997-06-25
  • 通讯作者: 郑丽

MEMORY FORMATION FOLLOWING VARIOUSLY REINFORCEDTRAINING IN DAY-OLD CHICKS

Zheng Li Wang Jianjun (NanJing University , 21003) Weng Xuchu Kuang Peizi (Institute of Psychology , Chinese Academy of Science , Beijing , 100012)   

  • Published:1997-06-25 Online:1997-06-25

摘要： 一日龄小鸡，分别接受不同浓度的回避性刺激物邻氨基苯甲酸甲酯（ＭｅＡ）训练，间隔一定时间后测试记忆保持。主要结果为：５％和２０％ＭｅＡ训练，分别使动物记忆保持１５分钟和５０分钟左右，相当于记忆形成多阶段模型中的ＳＴＭ和ＩＴＭ阶段。４０％ＭｅＡ训练，记忆保持到训练后８－１０小时，相当于不依赖新糖蛋白合成的ＬＴＭ形成的早期阶段。只有６０％以上浓度的ＭｅＡ训练才使记忆保持至少２４小时。上述结果提示，利用弱化训练的方法，不仅可以将ＳＴＭ，ＩＴＭ和ＬＴＭ分离开，而且可把ＬＴＭ形成的早期阶段分离出来独立研究，增加了对ＬＴＭ新的理解，为进一步探讨记忆形成机制提供了一条新的途径。

关键词: 一日龄小鸡, 训练刺激强度, 记忆阶段

Abstract: Day - old chicks were trained with varying concentrations of a taste aversant, methyl anthranilate (MeA) , and tested for retention at different time - points after training. Chicks trained with 5% and 20%MeA preserved memory about 15 minutes and 50 minutes respectively , fitting the STM and ITM of the multiple - stage model of memory formation, while those trained with 40%MeA yielded high retention level up to 8 - 10 hours, this time -course appeared to correspond with the glycoprotein - synthesis - independent stage of the LTM. Only MeA over 60% resulted in good reten- tion lasting at least 24 hours. The results demonstrated that the weak - learning. paradigm not only could dissociate the traditional three main stages of memory forma- tion (STM, ITM, LTM), but also could differentiate the LTM into an early and a later phase. This could open a new approach to the further investigations of the mechanisms of memory formation

Key words: day - old chick, memory stage, intensity of training stimulus