In the acquisition of visual evoked EEG,a flash needs to be used to stimulate the tester’S eyes at different frequencies and appropriate light intensity.Aiming at this need,it designed a new type of visual evoked potential flash stimulator based on Atmega8 single-chip microcomputer driving LEDs,and analyzed the specific design scheme selection,hardware circuit design,software design.The stimulator complies with medical standards.
Ret Girat Yazicioglu,Patrick Merken,Robert Puers.A 200tLW eight-channel EEG acquisition ASIC for ambulatory EEG systems[J].IEEE Journal of Solid-state Circuits,2008,43(12):3025-3038.
Refot Firat Yazicioglu,Patrick Merken,RobertPuers,et a1.Low-power lownoise 8-chaanel EEG front·-end ASIC for alnbulatory acqui—sition systems[C]∥Solid-State Circuits Conference,ESSCIRC2006.Proceedings of the 32nd European,2006:247-250.
Joan Paulo Carmo,NunoSergio se o Dias,Helder Raul Silva,et a1.A 2.4 GHz low—power/low—voltage wireless plug-and-play module for EEG applications[J].IEEE Sensors Journal,2007,11(7):1524-1530.