工作内存存储元件在双任务条件下的精确和近似算术处理中的作用
1Department of Psychology and Behavioral Sciences, Zhejiang University.
概括
精确的算术依赖于口语和视觉空间工作记忆存储,与近似的算术不同. 精确和近似的算术处理都取决于认知任务的中央执行功能.
科学领域:
- 认知心理学
- 神经科学
- 人类的认知
背景情况:
- 工作记忆对于复杂的认知任务至关重要.
- 它包括不同的组件:语言存储,视觉空间存储和中央执行功能.
- 了解这些组件在算术中的作用是认知研究的关键.
研究的目的:
- 调查工作记忆中语言和视觉空间短期存储的具体作用,以准确和近似的算法.
- 检查中央行政干预对两种算术处理类型的影响.
- 阐明不同算术策略的不同工作记忆机制.
主要方法:
- 与成年参与者进行了四次双重任务实验.
- 任务涉及在不同工作记忆负载下精确和近似的算术 (口头,视觉空间,中央执行干扰).
- 实验操作包括干扰材料的变化和算术任务难度平衡.
主要成果:
- 语言和视觉空间存储干扰显著损害了精确的算术性能.
- 储存干扰没有影响近似的算术性能,但受到了中央执行干扰的影响.
- 中央行政部门的干涉对精确和近似的算术任务产生了负面影响.
结论:
- 精确的算术处理更多地依赖于口头和视觉空间的短期存储,而不是近似的算术.
- 精确和近似的算法都依赖于工作内存中的中央执行资源.
- 不同的工作记忆机制支持精确与近似的算术,突出了认知灵活性.
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