Independent logic durator.
D000161:Acoustic Stimulation / Q000295:instrumentation; D000703:Analog-Digital Conversion; D004599:Electric Stimulation Therapy / Q000295:instrumentation; D004576:Electromyography / Q000295:instrumentation; D004582:Electronics, Medical / Q000295:instrumentation*; D006801:Humans; D010775:Photic Stimulation / Q000295:instrumentation; D012119:Respiration; D013995:Time