Natural rhythms of periodic temporal attention
Natural rhythms of periodic temporal attention
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DOI：
10.1038/s41467-020-14888-8
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发表时间：
2020-02
影响因子：
16.6
通讯作者：
Arnaud Zalta;S. Petkoski;Benjamin Morillon
中科院分区：
文献类型：
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作者：
Arnaud Zalta;S. Petkoski;Benjamin Morillon
注意力是一个基本的节律过程，这一点最近得到了大量的经验证据。然而，时间注意力的本质是灵活地集中时间。这种功能是否受到潜在的节律神经机制的限制尚不清楚。在六个相互关联的实验中，我们行为量化的采样能力，在听觉或视觉感知的周期性时间注意。我们揭示了有限的注意力的存在，最佳采样率为~1.4 Hz的听觉和~0.7 Hz的视觉。调查运动对时间注意力的贡献，我们发现它与运动节奏精度成比例，最大值为~1.7 Hz。关键的是，运动调制有利于听觉，但不利于视觉时间注意。这些结果被捕获的耦合振荡器的计算模型，揭示了潜在的结构约束控制电机和注意力波动之间的时间对齐。
That attention is a fundamentally rhythmic process has recently received abundant empirical evidence. The essence of temporal attention, however, is to flexibly focus in time. Whether this function is constrained by an underlying rhythmic neural mechanism is unknown. In six interrelated experiments, we behaviourally quantify the sampling capacities of periodic temporal attention during auditory or visual perception. We reveal the presence of limited attentional capacities, with an optimal sampling rate of ~1.4 Hz in audition and ~0.7 Hz in vision. Investigating the motor contribution to temporal attention, we show that it scales with motor rhythmic precision, maximal at ~1.7 Hz. Critically, motor modulation is beneficial to auditory but detrimental to visual temporal attention. These results are captured by a computational model of coupled oscillators, that reveals the underlying structural constraints governing the temporal alignment between motor and attention fluctuations.