EC2_B76.nwb

The enclosed data is collected using a high-density 256-channel electrocorticography array implanted in a human patient during treatment for epilepsy. The subjects are reading aloud consonant-vowel syllables from a list. The data was collected by Dr. Edward Chang at the University of California, San Francisco, and curated by Ben Dichter. Data is organized by subject ID, and each file is a continuous recording session in Neurodata Without Borders: Neurophysiology (NWB:N) 2.0 format. Voltage traces are included for each of the recorded 256 channels. Microphone signal was recorded at the time but is removed for HIPAA compliance. Detailed hand-marked annotations are provided which mark what syllable was said, and the times of the start, consonant-vowel transition, and end of each syllable. A rest-period time is also included when the subject was silent, which can be used as a baseline. Hand-marked anatomical labels are included for electrodes in the relevant brain regions. All dates have been removed for HIPAA compliance and replaced with Jan 1, 1900.本随附数据集通过植入癫痫治疗患者体内的高密度256通道皮层脑电图（electrocorticography, ECoG）阵列采集获得。受试对象朗读预设列表中的辅音-元音音节。该数据集由加州大学旧金山分校的Edward Chang博士采集，并由Ben Dichter完成数据整理。数据集按受试对象ID进行组织，每个文件均为连续录制会话，采用Neurodata Without Borders: Neurophysiology (NWB:N) 2.0格式存储。所有256个记录通道均包含电压轨迹数据。采集阶段同步录制了麦克风信号，但出于《健康保险流通与责任法案》（HIPAA）合规要求已将其移除。数据集附带详细的人工标注信息，标注内容涵盖朗读的音节类型，以及每个音节的起始时刻、辅音-元音转换时刻与结束时刻。此外还包含受试对象静默休息的时段数据，可作为基线参照使用。针对相关脑区的电极，数据集附带人工标注的解剖学标签。为符合HIPAA合规要求，所有原始日期均已移除，并替换为1900年1月1日。