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 1a: MP160 + HLT100C + STM100C + STMISOLA or STMISOC/D/E + 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
BSL MP41 kit rental

Practical Lab Kit for Remote Learning

BSL Home rentals enable students to conduct hands-on physiology labs in the safety of their own home, dorm room, or any remote location while social distancing and stay-at-home orders keep them out of campus labs Complete lab solution to preserve practical lab experience!  For instructors—BSL Home makes it easy for instructors to continue running practical […]

View All
Latest News

New Citations | Respiration Analysis and More

Comparing Diaphragm Tissue Between Healthy and Ill Patients The human diaphragm is one of the primary muscles used in respiration, contracting and expanding to control breathing. To measure how much diaphragms move for critically ill patients (in an Intensive Care Unit) compared to diaphragms in a healthy subject, patients at “Papageorgiou” General Hospital in Thessaloniki, […]

BIOPAC Systems Helps STARK Industries Launch VITAL Ventilator for NASA JPL

BIOPAC’s ventilator testing equipment and expertise supports STARK Industries’ effort to manufacture, validate, and test NASA JPL’s VITAL Ventilators Goleta, California – June 16, 2020 BIOPAC Systems, Inc. announced a partnership with STARK Industries, LLC to provide ventilator validation and testing equipment for the mass production of ventilators. STARK Industries was awarded a global license […]

Read All
Request a Demonstration
Request a Demonstration