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首页> 外文期刊>Journal of Experimental Psychology. General >A central capacity limit to the simultaneous storage of visual and auditory arrays in working memory
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A central capacity limit to the simultaneous storage of visual and auditory arrays in working memory

机译:将视觉和听觉阵列同时存储在工作内存中的中央容量限制

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摘要

If working memory is limited by central capacity (e.g., the focus of attention; N. Cowan, 2001), then storage limits for information in a single modality should apply also to the simultaneous storage of information from different modalities. The authors investigated this by combining a visual-array comparison task with a novel auditory-array comparison task in 5 experiments. Participants were to remember only the visual, only the auditory (unimodal memory conditions), or both arrays (bimodal memory conditions). Experiments I and 2 showed significant dual-task tradeoffs for visual but not for auditory capacity. In Experiments 3-5, the authors eliminated modality-specific memory by using postperceptual masks. Dual-task costs occurred for both modalities, and the number of auditory and visual items remembered together was no more than the higher of the unimodal capacities (visual: 3-4 items). The findings suggest a central capacity supplemented by modality- or code-specific storage and point to avenues for further research on the role of processing in central storage.
机译:如果工作记忆受到中心容量的限制(例如,关注焦点; N.Cowan,2001),则单一模式中信息的存储限制也应适用于同时存储来自不同模式的信息。作者通过在5个实验中将视觉阵列比较任务与新型听觉阵列比较任务相结合的方式对此进行了研究。参与者仅记住视觉,仅听觉(单峰记忆条件)或两个数组(双峰记忆条件)。实验I和2显示了视觉上的双重任务折衷,但听觉能力却没有。在实验3-5中,作者通过使用知觉后掩膜消除了特定于模态的记忆。两种方式都发生了双重任务成本,并且一起记住的听觉和视觉项目的数量不超过单峰能力中较高的一项(视觉:3-4个项目)。研究结果表明,中央处理能力可以通过模式或代码特定的存储加以补充,并为进一步研究处理在中央存储中的作用提供了途径。

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