Reaction time testing is made easy with the PVT-192. The literature has shown that simple reaction time is a convenient and sensitive continuous performance test for long-term, large scale testing of awareness, effects of sleep deprivation, and drug effects. The PVT test, combined with easy-to-use React software, has proven to be a valuable tool wherever measures of performance or sleepiness are needed. These include the transportation and pharmaceutical industries. Call us for a bibliography.