BIOPAC® Systems, Inc. Logo

285 – Identifying Stimulation Threshold

This Application Note details various protocols for identifying a stimulation threshold for stimulation. The purpose of establishing this threshold is to ensure the subject’s comfort level and safely determine the point at which a stimulation signal becomes unpleasant, or even painful. This is accomplished by sending a series of very short stimulus pulses to the subject and gradually increasing the voltage. The subject then indicates his or her level of comfort or discomfort, and the stimulation is adjusted accordingly.

Case 1: MP150 + UIM100C + STM100C + STMISOLA (current and voltage mode) or STMISOC/D/E (voltage mode only) + LEAD110A x2 + EL509 + GEL104

Case 2a: MP150 + UIM100C + STM200 + LEAD110A x2 + EL509 + GEL104
Case 2b: 3rd-party hardware and software + STM200 + LEAD110A x2 + EL509 + GEL104

Case 3: E-Prime + STMISOLA or STMISOC + LEAD110A x2 + EL509 + GEL104

Case 4: 3rd-party application + STMISOLA or [STMISOC + STM100C + IPS100C + HLT100C + INISO] + LEAD110A x2 + EL509 + GEL104

Case 5: MP150 + STM100C + STMISOC (in current mode) + LEAD110A x2 + EL509 + GEL104

Case 6: Third party equipment + STP100C + IPS100C + STM100C + STMISOC (in current mode) + LEAD110A x2 + EL509 + GEL104

Case 7: 3rd-party equipment + MP150/IPS100C + STP100C + STM100C + STMISOC (in voltage mode) or STMISOLA + LEAD110A x2 + EL509 + GEL104

Associated Applications

Spotlight On
BIOPAC training

T4 Human Physiology Conference

Early bird savings extended! T4: Tools, Trends, Techniques, and Technology Monday, July 24, 2017 – Wednesday, July 26, 2017 Join BIOPAC for three days of hands-on, small-group human physiology workshops, presented by renowned experts, on the beautiful University of California at Santa Barbara campus in Santa Barbara, California, USA. Who should attend Anyone who records and […]

View All
Latest News

News Citations—Respiration and Cardiovascular Activity

BIOPAC provides software and hardware that allow for research teams to record and analyze respiration activity in physiological experimentation. Here are a few notable studies in monitoring respiration and cardiovascular activity. The coupling between peripheral microcirculation and slow breathing: The purpose of this study was to investigate the coupling of breathing movements and microcirculatory blood […]

BIOPAC on 60 Minutes | Brain Hacking with Anderson Cooper

CBS News | 60 Minutes | Brain Hacking APRIL 9, 2017| Why can’t we stop looking at our smartphones? And are the designers of the apps and content on them using brain science to keep us hooked? Anderson Cooper reports.   BIOPAC users Larry D. Rosen, Ph.D. and Nancy A. Cheever, Ph.D. from California State […]

Read All
Request a Demonstration
Request a Demonstration