EEG Face House

Continuous EEG was recorded using a 32-channel ActiveTwo BioSemi system (Amsterdam, Netherlands), configured to the standard International 10-20 System (channels: 28 lateral channels FP1/2; F7/8; F3/4; AF3/4; FC1/2, FC5/6, C3/4, T7/8, CP1/2, CP5/6, P3/4, P7/8, O1/2, PO3/4, plus 4 midline channels Fz, Cz, Pz, Oz). For some children, an additional eye-electrode was placed behind the child’s left eye (Ex3), and/or additional loose electrodes were positioned at the mastoids (Ex1-2). Electrodes offset were less than 20μv. The EEG data were recorded relative to common mode sense and driven right leg (CMS/DRL) electrodes placed near Cz. Continuous EEG was acquired at a 2048Hz sample rate using Actiview (version 7.05) from a Dell latitude E5540 laptop (operating system Windows 10 Professional; in lab 0.41 version details: i5-4310U CPU @ 2,00 GHz 2,60GHz 8GB; in lab 0.42, version details: i3-4010U CPU @ 1,70 GHz 1,70GHz 4GB). Tasks were programmed in Matlab using Psych-Toolbox 3 (Brainard & Vision, 1997) from a second laptop (MacBookPro 11,1 13 inch retina OSX 10.9.5 Intel Core i7 2,8 GHz 16GB 1600 MHz DDR3).

连续脑电图（EEG）采用32通道ActiveTwo BioSemi系统（荷兰阿姆斯特丹生产）进行采集，该系统按照国际标准10-20系统（International 10-20 System）配置电极通道：包含28个侧列电极FP1/2、F7/8、F3/4、AF3/4、FC1/2、FC5/6、C3/4、T7/8、CP1/2、CP5/6、P3/4、P7/8、O1/2、PO3/4，以及4个中线电极Fz、Cz、Pz、Oz。
部分受试儿童会额外在左眼后方放置眼电电极（Ex3），或在乳突部位安置额外的松散电极（Ex1-2）。所有电极的偏移量均小于20μV。
本次脑电图数据以放置于Cz附近的共模感应（CMS）与驱动右腿（DRL）电极作为参考进行采集。连续脑电图的采样率为2048Hz，采用Actiview软件（版本7.05）完成采集，运行设备为Dell Latitude E5540笔记本电脑（操作系统为Windows 10专业版；实验室0.41版本的硬件配置为：i5-4310U CPU @ 2.00GHz 2.60GHz，8GB内存；实验室0.42版本的硬件配置为：i3-4010U CPU @ 1.70GHz 1.70GHz，4GB内存）。
实验任务通过Matlab结合Psych-Toolbox 3（Brainard & Vision, 1997）编写，运行设备为另一台笔记本电脑（MacBookPro 11,1，13英寸视网膜屏幕，操作系统为OSX 10.9.5，搭载Intel Core i7 2.8GHz处理器，16GB 1600MHz DDR3内存）。