High-density EEG system for auditory cognitive neuroscience

人类调整自己的行为以适应传入的感官信息的能力是非凡的。在说话、演奏乐器或拍手等听觉运动行为中的适应是快速而毫不费力的。例如，开始鼓掌的观众往往是不同步的（不合时宜的），但很快就会彼此一致，形成一个一致的、连贯的模式。这种相位一致性体现了我们适应广泛的声音变化的能力，这些变化是音乐和语言的特征。在协调任务期间，大脑活动也表现出相位一致性，因为神经网络会随着时间的推移形成同步振荡模式。不幸的是，目前的科学理论几乎完全基于（单个）个体的大脑行为测量，通常是对计算机生成的（非适应性）刺激的反应。这种限制有两个负面结果：a)我们忽略了研究特定于人类互动的时间适应；b)我们缺乏足够的数据来充分测试个体之间大脑行为相互作用的相位相干模型。

The capacity for humans to adapt their behaviour to incoming sensory information is extraordinary. Adaptation during auditory-motor behaviours such as speaking, playing a musical instrument, or clapping to a beat is fast and effortless. Audience members, for example, who begin to clap are often unsynchronized (out-of-phase) but quickly align with each other, forming an in-phase, coherent pattern. This phase coherence characterizes our ability to adapt to the wide range of acoustic changes that characterize music and speech. Brain activity during coordination tasks demonstrates phase coherence as well, as neural networks form synchronous oscillatory patterns over time. Unfortunately, current scientific theory is based almost exclusively on brain-behaviour measurements from (single) individuals, often in response to computer-generated (non-adaptive) stimuli. This limitation has two negative outcomes: a) we have neglected to study temporal adaptation that is specific to human interactions; and b) we lack the data with which to adequately test phase-coherence models of brain-behaviour interactions between individuals.