High-density EEG system for auditory cognitive neuroscience

人类根据传入的感官信息调整行为的能力是非同寻常的。在说话、演奏乐器或随着节拍鼓掌等听觉运动行为中的适应是快速和毫不费力的。例如，开始鼓掌的观众通常是不同步的(不同步的)，但很快就会彼此对齐，形成一种同步的、连贯的模式。这种相位一致性表征了我们适应音乐和语音所特有的广泛声学变化的能力。协调任务期间的大脑活动也显示出相位一致性，因为神经网络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(单身)个体的大脑行为测量，通常是对计算机产生的(非适应性)刺激的反应。这一局限有两个负面后果：a)我们忽视了对特定于人类互动的时间适应的研究；b)我们缺乏足够的数据来充分测试个人之间大脑行为互动的相位一致性模型。

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.