刺激前额叶皮质通过增加代表性重叠来促进训练转移
Yohan Wards1, Shane E Ehrhardt1, Kelly G Garner1,2,3,4
1School of Psychology, The University of Queensland, McElwain Building, Campbell Road, St Lucia, Queensland 4072, Australia.
Cerebral cortex (New York, N.Y. : 1991)
|May 21, 2024
概括
跨直流刺激 (tDCS) 与多任务训练相结合,改善了学习概括性. 左前额叶皮层tDCS通过改变神经表征,特别增强了对新任务的转移.
科学领域:
- 认知神经科学 认知神经科学
- 神经成像是一种神经成像.
背景情况:
- 多任务处理的困难可能来自于跨任务的学习概括.
- 训练减少了大脑区域的表示重叠,减轻了这些成本.
- 超直流刺激 (tDCS) 可以增强训练诱导的性能增长.
研究的目的:
- 调查前额叶皮层tDCS和多任务训练之间的相互作用背后的神经机制.
- 为了确定结合的tDCS和培训是否会改变与任务相关的代表性重叠.
- 评估对学习对新任务的概括的影响.
主要方法:
- 178名参与者接受了左侧或右侧前额皮层tDCS与多任务训练相结合.
- 功能磁共振成像 (fMRI) 数据是在训练前和训练后收集的.
- 机器学习被用来分析与任务相关的大脑区域神经活动的重叠.
主要成果:
- 左前额皮层tDCS与多任务训练相结合,增强了对空间注意力任务 (视觉搜索) 的转移.
- 额头,头顶和小脑区域的分类准确度 (减少表示重叠) 的变化预测了视觉搜索收益.
- 右前额叶皮层tDCS在概括方面没有产生类似的改善.
结论:
- 前额叶皮层tDCS可以调节训练诱导的神经表征的变化.
- 这种调制有助于跨任务学习的概括.
- 有针对性的tDCS可能是一个可行的策略来增强认知灵活性.
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