Pupillometry signatures of sustained attention and working memory.

Pupillometry signatures of sustained attention and working memory.
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持续关注和工作记忆的瞳孔测定签名。

DOI:
10.3758/s13414-022-02557-5
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发表时间:
2022-11
期刊:
Attention, perception & psychophysics
影响因子:
--
通讯作者:
Vogel EK
Vogel EK
中科院分区:
其他
文献类型:
--
作者:
Keene PA;deBettencourt MT;Awh E;Vogel EK

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注意与工作记忆之间存在着错综复杂的关系。最近的研究进一步证实了注意力和工作记忆的同步波动,通过紧密交织持续的注意力和工作记忆任务。这项工作提出了许多关于这些行为波动背后的生理特征的公开问题。在两个实验中,我们探索瞳孔动态使用实时触发结合交错持续的注意力和工作记忆任务。在实验1中,我们使用行为实时触发,并复制了我们实验室最近的发现,即持续注意力与工作记忆中保持的项目数量同时波动。此外,高度注意的时刻,通过行为检测,也表现出较大的瞳孔大小。在实验2中,我们开发了一种新的实时瞳孔触发技术来跟踪瞳孔大小的波动在真实的时间和触发工作记忆探针。我们发现,这种瞳孔触发程序揭示了持续注意力的差异,反应时间为指标。这些实验反映了实时触发方法的进步,并进一步解开了一般唤醒,持续注意力和工作记忆之间的关系。
There exists an intricate relationship between attention and working memory. Recent work has further established that attention and working memory fluctuate synchronously, by tightly interleaving sustained attention and working memory tasks. This work has raised many open questions about physiological signatures underlying these behavioral fluctuations. Across two experiments, we explore pupil dynamics using real-time triggering in conjunction with an interleaved sustained attention and working memory task. In Experiment 1, we use behavioral real-time triggering and replicate recent findings from our lab that sustained attention fluctuates concurrently with the number of items maintained in working memory. Furthermore, highly attentive moments, detected via behavior, also exhibited larger pupil sizes. In Experiment 2, we develop a novel real-time pupil-triggering technique to track pupil size fluctuations in real time and trigger working memory probes. We show that this pupil triggering procedure reveals differences in sustained attention, as indexed by response time. These experiments reflect methodological advances in real-time triggering and further disentangle the relationship among general arousal, sustained attention, and working memory.
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