Chinen Koji, Kawabata Akira, Tanaka Hitoshi, Komura Yutaka
Graduate School of Human and Environmental Studies, Kyoto University, Yoshida-Nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, Japan.
iScience. 2023 Oct 31;26(11):108208. doi: 10.1016/j.isci.2023.108208. eCollection 2023 Nov 17.
Even when we attend to successive visual events, we often cannot notice an event occurring during a certain temporal window. Such an inaccessible time for visual awareness is known as "attentional blink" (AB). Whether AB is a phenomenon unique to humans or exists also in other animals is unclear. Using a dual-task paradigm shared between macaques and humans, we here demonstrate a nonhuman primate model of AB. Although macaques also showed behavioral signatures of AB, their AB effect lasted longer than that of humans. To map the relation between macaque and human ABs, we introduced a time warping analysis. The analysis revealed a formal structure behind the interspecies difference of AB; the temporal window of macaque AB was scaled from that of human AB. The present study opens the door to combining the approaches of neuroscience, psychophysics, and theoretical models to further identify a scale-invariant biological substrate of visual awareness.
即使我们关注连续的视觉事件，我们通常也无法注意到在某个时间窗口内发生的事件。这种视觉意识无法触及的时间被称为“注意瞬脱”（AB）。AB是人类独有的现象还是也存在于其他动物中尚不清楚。通过使用猕猴和人类共享的双任务范式，我们在此展示了一个AB的非人类灵长类动物模型。尽管猕猴也表现出AB的行为特征，但其AB效应持续的时间比人类更长。为了描绘猕猴和人类AB之间的关系，我们引入了时间规整分析。该分析揭示了AB种间差异背后的形式结构；猕猴AB的时间窗口是从人类AB的时间窗口缩放而来的。本研究为结合神经科学、心理物理学和理论模型的方法以进一步确定视觉意识的尺度不变生物基质打开了大门。
