We offer both manual and vocal response devices that are flexible, accurate, and easy to use.  Whether you need an accurate reaction time measure, a participant response in a behavioral paradigm, or a control input that determines the direction the rest of the experiment will take, we have a solution.  We offer manual response devices intended for use in ERP and behavioral testing applications and voice response devices designed specifically for experiments requiring a vocal response.  We also supply response boxes from Cambridge Research Systems for use in ERP and Behavioral situations and a fiber optic response system for use in MEG and fMRI made by Current Designs.