GP31_B2.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.<br>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.

本附带数据集采用高密度256通道皮层脑电图（electrocorticography, ECoG）阵列采集，该阵列植入于一名接受癫痫治疗的人类患者体内。受试者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。
数据集按受试者ID进行组织，每个文件均为一份连续的记录会话，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。256个记录通道的电压轨迹数据均已包含在内。采集过程中同步录制了麦克风信号，但出于《健康保险流通与责任法案（Health Insurance Portability and Accountability Act, HIPAA）》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。此外还包含受试者静默状态下的静息时段数据，可作为实验基线使用。同时附带相关脑区电极的人工标注解剖学标签。出于HIPAA合规要求，所有原始日期信息均已被移除，替换为1900年1月1日。