任务无关阶段,但不是对比变量解锁了视觉感知学习中的概括
Beyza Akkoyunlu1,2,3,4,5, Caspar M Schwiedrzik1,2,3,5
1Neural Circuits and Cognition Lab, European Neuroscience Institute Göttingen-A Joint Initiative of the University Medical Center Göttingen and the Max Planck Institute for Multidisciplinary Sciences, Grisebachstraße 5, 37077 Göttingen, Germany.
概括
练习视觉任务可以提高表现,但学习往往是具体的. 在训练过程中引入空间阶段的可变性可以增强跨位置的概括性,与对比度的可变性不同,揭示了训练如何影响视觉感知学习.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 视觉感知 视觉感知 视觉感知
背景情况:
- 视觉感知学习 (VPL) 通过实践提高任务性能.
- VPL通常对训练过的刺激和位置表现出特异性.
- 在培训期间,与任务无关的变化可以减少VPL的特异性.
研究的目的:
- 调查不同视觉特征的变化如何影响VPL中的空间概括.
- 为了比较随机对比与空间阶段对学习概括的影响.
主要方法:
- 一个导向歧视任务被用来培训参与者.
- 在对比或空间阶段引入了试验逐试验的变化.
- 评估了将学习推广到一个新的空间位置.
主要成果:
- 在训练过程中随机化空间阶段导致完全将学习推广到一个新的位置.
- 随机对比并没有导致显著的空间概括.
- 这些发现表明特征变异性对VPL特异性的差异性影响.
结论:
- 参与VPL的神经群体受到训练任务的特征的影响.
- 任务无关的可变性,特别是在空间阶段,是促进VPL概括的一个关键因素.
- 这支持了这样一个假设:可变性独立调节感知学习的特异性.
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