认知变化的机制:训练提高了视觉工作记忆表现的质量,但不是数量
Shuangke Jiang1, Myles Jones1, Claudia C von Bastian1
1Department of Psychology, University of Sheffield, UK.
Journal of cognition
|July 24, 2023
概括
视觉工作记忆 (WM) 训练提高了训练任务中的表示质量,而不是数量. 这些收益并没有转移到未经培训的任务上,这表明提高了效率,而不是能力.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 人类的感知人类的感知.
背景情况:
- 视觉工作记忆 (WM) 训练对未经训练的任务显示出不一致的认知益处.
- 了解WM培训的机制对于解释这些不一致性至关重要.
研究的目的:
- 调查WM培训如何影响WM视觉表示的数量和质量.
- 确定培训收益是否提高了能力或效率.
主要方法:
- 这是一项预先注册的,测试前/测试后的在线研究,涉及64名年轻成年人.
- 随机分配到一个实验组 (定向-复制任务) 或一个活跃的对照组 (视觉搜索任务).
- 使用连续复制任务评估WM表示的四次培训课程.
主要成果:
- 实验组在训练任务中的视觉WM表示的质量,但不是数量,显著改善.
- 这些改进是特定于训练的刺激和范式,而不是一般化.
- 没有观察到视觉WM表示数量的显著变化.
结论:
- 视觉WM培训的收益不是由提高能力驱动的.
- 质量的提高表明,利用现有的WM容量提高了效率.
- 训练效应是刺激和范式特定的,限制了对未经训练的任务的概括.
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