增加了泛化,更强大的收购,或减少了灭绝? 调查多种背景的收购效应背后的机制
Wei Jun Marc Chao1, Bridget L McConnell2
1College of Healthcare Sciences, James Cook University, Singapore.
Behavior therapy
|June 27, 2024
概括
在多个环境中获得恐惧会增加反应,并阻碍灭绝. 这是因为概括,而不是更强的学习或更慢的灭绝,是驱动这种效应的主要机制.
科学领域:
- 认知心理学 认知心理学
- 行为神经科学 行为神经科学
- 学习和记忆的学习和记忆
背景情况:
- 在多个环境中获取可以损害灭绝的有效性,减少有条件的响应.
- 这种现象背后的机制仍然未被充分探索.
研究的目的:
- 调查为什么在多个环境中获取阻碍了灭绝.
- 检查概括,获取学习和灭绝学习作为潜在的机制.
主要方法:
- 180名参与者在一个或三个环境中接受了歧视性培训 (CS+ → Outcome,CS- → noOutcome).
- 培训之后,在一个新的背景下灭绝或没有灭绝.
- 测试发生在收购,灭绝或新情境中,测量条件预期.
主要成果:
- 在收购后,在三种情况下,与一种情况下相比,在三种情况下观察到灭的有条件期望的更强烈的更新.
- 获取环境的数量没有影响激发性刺激-结果关联的强度.
- 没有发现获取上下文数对灭绝期间的抑制性学习有显著的影响.
结论:
- 概括似乎是多背景获取对灭绝学习负面影响的主要机制.
- 研究结果表明,上下文概括干扰了灭绝减少受条件反应的能力.
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