Hi,<br><br>I am having some major timing issues in my ERP studies. I'm finding P300 peak latencies around 500 ms in a simple flanker task and there is no P1/N1 wave to speak of. <br><br>I suspect that the problem is a result of our display setup. Stimuli are presented on an LCD monitor connected through a KVM switch. Does anyone know if the input lag from this could have caused these problems? We use EGI 32 channel nets for acquisition and send triggers via a custom software from a Mac Mini (e.g. not using E-prime).<br>
<br><br>Jason<br clear="all"><br>-- <br>Jason Ralph<br>CogWorks Laboratory<br>Cognitive Science Department<br>Rensselaer Polytechnic Institute<br>110 8th Street, Troy, NY 12180<br>