在人类关联式学习过程中,结果的元素之间存在着阴影,但不是相对的有效性
Martyn Quigley1, Mark Haselgrove2
1Swansea University, UK.
Neurobiology of learning and memory
|June 23, 2023
概括
这项研究探讨了遮蔽和相对有效性如何影响人类学习结果. 研究人员发现了结果覆盖的证据,但结果的相对有效性并非如此,这挑战了现有的学习模型.
科学领域:
- 认知心理学 认知心理学
- 学习理论学习理论
- 行为科学 行为科学
背景情况:
- 覆盖和相对有效性是协会学习中的关键概念.
- 雷斯科拉-瓦格纳模型 (1972) 解释了学习中的提示互动.
- 以前的研究集中在线索-结果关联,而不是结果-结果相互作用.
研究的目的:
- 调查是否覆盖和相对有效性效应延伸到人类的学习结果.
- 为了测试Rescorla-Wagner模型在新型食物过敏学家范式中的预测.
- 探索协同学习中的多种结果之间的相互作用.
主要方法:
- 三项实验使用了与人类参与者的食物过敏症范式.
- 实验1通过将线索与复合结果配对来覆盖测试结果.
- 实验2和3检查了使用歧视和伪歧视试验的结果相对有效性.
主要成果:
- 实验1证明了一个结果覆盖效应,其中对一个结果的学习被另一个结果的存在所减少.
- 实验2和3未能找到一个显著的结果相对有效性效应.
- 参与者的主观评分并没有反映出结果线索的差异性预测有效性.
结论:
- 这些发现提供了证据,证明结果在人类协会学习中覆盖了结果的相对有效性,但不是结果的相对有效性.
- 结果表明Rescorla-Wagner模型对结果相互作用的直接应用存在局限性.
- 需要进一步的研究来完善学习模型,以解释复杂的结果关联.
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