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.

本实验招募了十名志愿者，通过一系列共计十二课的日常训练，使他们熟练使用 Colemak 键盘布局在计算机上进行打字。在第四、第八和第十一次训练课程中，对每位志愿者在相应课程中的五个测试进行了脑电图（EEG）测量。同时，还收集了每个测试的心电图（ECG）数据。本实验旨在探索评估学习新任务过程的不同方法。所有测量均采用 Advanced Brain Monitoring 公司的 B-Alert X10 无线系统进行。该系统中的 EEG 传感器具有固定增益，并以连接的乳突为参考点，其传感器阵列分布基于国际 10-20 标准系统。因此，EEG 传感器被置于 F3、Fz、F4、C3、Cz、C4、P3、POz 和 P4 位置。ECG 通道测量的是 I 导联。所有数据均以 256 Hz 的采样频率采集。这些数据集对应于去污和去趋势的 EEG+ECG 测量。所有数据均于墨西哥蒙特雷的研究与先进研究中心（Cinvestav）的生物医学信号处理实验室采集。