了解试验序列会破坏经典调节中的部分强化灭绝效应.
Tianjian Jiao1, Justin A Harris1
1School of Psychology, The University of Sydney.
概括
部分增强灭绝效应 (PREE) 表明不一致的增强减缓了灭绝. 这项研究发现,学习试验序列对于PREE是不必要的,这表明不确定性可能是关键.
科学领域:
- 行为心理学 行为心理学
- 动物学习是动物学习.
- 灭绝现象 灭绝现象
背景情况:
- 部分增强灭绝效应 (PREE) 描述了部分增强后更慢的灭绝.
- 序列理论认为,在获取过程中学习非强化试验序列可以解释PREE.
研究的目的:
- 调查是否在条件化过程中学习试验序列是PREE所必需的.
- 检查顺序学习在部分强化灭绝效应中的作用.
主要方法:
- 两项实验训练了老鼠,使用一个固定的试验序列.
- 在条件化过程中评估了顺序学习,并在灭绝过程中评估了随后的PREE.
主要成果:
- 一些老鼠学会了序列,但没有显示PREE.
- 其他老鼠在没有学习试验序列的情况下显示了PREE.
- 结果与顺序理论的预测相矛盾.
结论:
- 对于PREE来说,学习试验序列既不必要也不够.
- PREE可能是由对条件刺激强化不确定性的驱动.
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