事件相关电位数据采集卡的设计与实现  

Design and implementation of the data acquisition card for event related potentials

作　　者：彭小虎[1,2] 王国锋[2] 彭聃龄[1] 

机构地区：[1]北京师范大学心理学院脑与认知研究所,北京市100875 [2]湖南省第一师范学校教育科学系,湖南省长沙市410002

出　　处：《中国临床康复》2005年第5期42-44,共3页Chinese Journal of Clinical Rehabilitation

基　　金：国家攀登计划(95-专-09);中国博士后基金资助(2003034026)~~

摘　　要：目的:研制基于USB2.0的事件相关电位数据采集卡,为神经活动功能改变的评定提供依据。方法:以USB2.0芯片CY7C68013为核心,结合CPLD(ComplexPro-grammableLogicDevice,CPLD)和FIFO(FirstIn,FirstOut,FIFO),设计硬件系统及控制程序。结果:事件相关电位数据采集卡包括硬件设计和软件设计两部分。在硬件上包含多路开关、模数转换、FIFO模块、CPLD模块、USB模块;在软件上包含CPLD编程、USB固件、USB驱动以及应用程序。结论:该卡具有精度高、实时性好、可自由设置通道、单端和差分信号可同时采集、外部信号和采集数据同步等优点,完全能胜任事件相关电位数据采集。AIM:To design the data collection card based on USB2.0 for event related potentials(ERP) and provide material to evaluate the change of neural activity. METHODS:The hardware system and control program were designed based on USB2.0 chip CY7C68013,which combined Complex Programmable Logic Device(CPLD) and First In, First Out(FIFO). RESULTS:The study included hardware and software design. There were analog multiplexers,A/D conversion(analog digital conversion), FIFO module,CPLD module in the hardware design and CPLD program,USB firmware, USB driver in the software design. CONCLUSION:The card possesses of some advantages:high precision, outstanding real time ability,free channels setting,single ended and differential signals collecting simultaneously,exterior signal and collecting data synchronization.So,the card is competent for the data collection of event related potentials.

关 键 词：事件相关电位 P300 数据收集 设备设计 

分 类 号：R74[医药卫生—神经病学与精神病学]