EC2_B8.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.本数据集采用植入癫痫治疗患者体内的高密度256通道皮层脑电图（electrocorticography, ECoG）阵列采集获取。受试对象需大声朗读预设音节列表中的辅音-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，Ben Dichter负责数据整理。数据集按受试者ID进行分类组织，每个文件均为一段连续记录时段，采用神经数据无国界：神经生理学（Neurodata Without Borders: Neurophysiology, NWB:N）2.0格式存储。全部256个记录通道均包含电压迹线数据。采集阶段曾同步录制麦克风信号，但为符合健康保险流通与责任法案（Health Insurance Portability and Accountability Act, HIPAA）的合规要求，该信号已被移除。数据集附带详细的人工标注信息，标注了每一个读出音节的具体内容，以及每个音节的起始时刻、辅音-元音转换时刻与结束时刻。此外还包含受试者保持静默的静息时段数据，可作为实验基准对照使用。针对相关脑区内的电极，数据集还提供了人工标注的解剖学定位标签。为符合HIPAA合规要求，所有真实日期均已被移除，替换为1900年1月1日。