序列依赖:一个记忆负载问题
Yuri A Markov1,2, Natalia A Tiurina1,3, David Pascucci1,4,5
1Laboratory of Psychophysics, Brain Mind Institute, École Polytechnique Fédérale de Lausanne (EPFL), Switzerland.
Heliyon
|July 29, 2024
概括
序列依赖,即对最近刺激的偏见,是由视觉工作记忆 (VWM) 资源显著调节的. 高电流VWM负载加强了过去的影响,而高的先前VWM负载削弱了它们.
科学领域:
- 认知神经科学 认知神经科学
- 感知和心理物理学的感知.
- 人类行为人类行为.
背景情况:
- 序列依赖描述了最近的感官信息如何影响当前的感知决策.
- 认知资源的作用,如视觉工作记忆 (VWM),在调节串行依赖仍然不完全理解.
研究的目的:
- 调查VWM资源的可用性如何影响串行依赖.
- 为了确定VWM负载是否会影响感知任务中的串行依赖的强度.
主要方法:
- 两项实验涉及参与者复制刺激方向.
- 另外一个视觉工作记忆 (VWM) 任务与主要任务交叉,负载级别不同.
- 分析了与VWM负载条件相关的连续依赖性和复制精度.
主要成果:
- 序列依赖是由VWM负载调节的:在之前的试验中,高负载减少了序列依赖.
- 相反,当前试验中的高VWM负载增加了串行依赖.
- 这些影响与VWM负载对响应复制精度的影响不同.
结论:
- VWM资源在调节串行依赖方面发挥着至关重要的作用.
- 这些发现揭示了VWM能力与最近过去刺激对当前感知的影响之间的密切联系.
- 这表明记忆系统和感知处理之间的动态相互作用.
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