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工作记忆在视觉选择性注意力中的作用
J W de Fockert1, G Rees, C D Frith
1Department of Psychology, University College London, Gower Street, London WC1E 6BT, UK. : j.de-fockert@ucl.ac.uk
概括
工作记忆 (WM) 通过对信息进行优先排序,有助于减少分心. 高WM负载增加了对面部和视觉皮层活动的分心,证实了WM在选择性注意力中的作用.
科学领域:
- 认知神经科学 认知神经科学
- 心理学 心理学 心理学
背景情况:
- 工作记忆 (WM) 理论上是通过保持信息优先级来控制注意力.
- 了解WM在选择性注意力中的作用对于认知科学至关重要.
研究的目的:
- 调查工作记忆对于减少分心是必不可少的假设.
- 检查工作记忆负载如何影响选择性视觉注意力和神经处理.
主要方法:
- 进行了神经成像 (fMRI) 和行为实验.
- 参与者执行了选择性注意力任务,工作记忆负载不同 (低高).
- 干扰刺激 (面孔) 呈现,而参与者在WM中保持数字序列.
主要成果:
- 更高的工作记忆负载导致分散注意力的面孔增加了行为干扰.
- 额前皮层活动增加与更高的记忆负载相关.
- 在高记忆负载条件下观察到视觉皮质面部相关活动升高.
结论:
- 工作记忆在控制视觉选择性注意力方面发挥着重要作用.
- 维护工作记忆中的信息会影响分心刺激的处理.
- 与工作记忆负载相关的前额活动调节注意力控制.
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