EC9_B53.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.本次提供的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。受试对象需大声朗读预设列表中的辅音-元音音节。本数据集由加州大学旧金山分校的Edward Chang博士采集，Ben Dichter负责数据整理与归档。数据集按受试者ID进行分类组织，每个文件对应一段连续的记录会话，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。所有256个记录通道的电压波形轨迹均已包含在数据集中。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，简称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注释，标注了每个朗读音节的具体内容、音节起始时刻、辅音-元音转换时刻以及音节结束时刻。同时包含受试者保持静默的休息时段时间戳，可作为实验基线参考使用。针对相关脑区的植入电极，附带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，替换为统一的1900年1月1日。