Electroencephalography measurements during Colemak typing lessons

Ten volunteers were trained through a series of twelve daily lessons to type in a computer using the Colemak keyboard layout. During the fourth-, eight-, and eleventh-session, electroencephalography (EEG) measurements were acquired for the five trials each subject performed in the corresponding lesson. Electrocardiography (ECG) data at each of those trials were acquired as well. The purpose of this experiment is to aim in the development of different methods to assess the process of learning a new task. All measurements were acquired using the B-Alert X10 wireless system from Advanced Brain Monitoring. EEG sensors in that system have fixed gain, they are referenced to linked mastoids, and the sensor array distribution is based on the international 10–20 reference system. Hence, EEG sensors are positioned at F3, Fz, F4, C3, Cz, C4, P3, POz, and P4. The ECG channel measures the Lead-I. All data are acquired at a sampling frequency of 256 Hz. These datasets corresponds to the decontaminated and detrended EEG+ECG measurements. All data was acquired at the Laboratory of Biomedical Signal Processing at The Center for Research and Advanced Studies (Cinvestav), Monterrey's Unit.

招募十名志愿者，通过每日共十二课时的系列训练，使其掌握使用科尔马克（Colemak）键盘布局进行计算机打字的技能。在第4、第8和第11次训练课期间，采集每位受试者在对应课时中完成的5次试次的脑电图（electroencephalography, EEG）数据，同期亦采集了各次试次的心电图（electrocardiography, ECG）数据。本实验旨在研发多种用于评估新任务学习进程的方法。所有生理信号均通过Advanced Brain Monitoring公司的B-Alert X10无线采集系统完成采集。该系统的脑电图传感器采用固定增益模式，以双侧乳突作为参考电极，传感器阵列布局遵循国际10-20导联系统标准，因此脑电图传感器的安放位置为F3、Fz、F4、C3、Cz、C4、P3、POz及P4。心电图通道采用标准I导联采集信号，所有数据的采样频率均为256 Hz。本数据集包含经过降噪与去趋势化处理的脑电图+心电图联合采集数据。所有数据均采集自墨西哥蒙特雷研究与高等研究中心（Center for Research and Advanced Studies, Cinvestav）生物医学信号处理实验室。