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给时间一个机会在中期的反转任务中
Catarina Soares1, Carlos Pinto2, Armando Machado3
1School of Psychology, University of Minho, Gualtar Campus, 4710-057, Braga, Portugal. csoares@psi.uminho.pt.
Learning & behavior
|November 20, 2023
概括
在中期逆转任务中的子主要使用时间来预测变化,但有些使用计数或强化策略. 调整试验间隔 (ITI) 影响了他们的表现,时间是观察到的主要策略.
科学领域:
- 行为神经科学 行为神经科学
- 动物认知动物的认知能力.
- 学习和记忆的学习和记忆
背景情况:
- 会议中期反转任务评估动物如何学习和适应不断变化的强化应急情况.
- 子通常似乎在这个任务中计时了反转点,导致在预期的切换试验中出现错误.
研究的目的:
- 调查定时与其他策略 (计数,应急学习) 在子在中期反转任务中的表现中的作用.
- 检查操纵试验间隔 (ITI) 对逆转反应的准确性和时间的影响.
主要方法:
- 子被训练在一个中期反转任务与一个恒定的试验间隔 (ITI).
- 测试会包括操纵ITI (翻倍或减半) 来观察反转试验性能的影响.
- 额外的测试包括一个刺激的持续强化或延迟强化的条件,以测试策略的使用.
主要成果:
- 大多数子的表现与计时策略保持一致,即使ITI被改变了.
- 将ITI减半并没有持续地使逆转试验增加一倍,这表明可能涉及的因素超出了简单的时机.
- 一些单独的子展示了基于计数或强化意外情况而不是纯粹的时间的策略.
结论:
- 虽然定时是中期逆转任务中普遍存在的策略,但其主导地位可能受到ITI操纵和个人差异等因素的影响.
- 在ITI效应中观察到的不对称性表明,新的线索或学习策略可以与简单的时间预测相互作用或取代.
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