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 + STMISLOA 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
AcqKnowledge ECG, Respiration, EDA (GSR), heart rate data

AcqKnowledge Software Upgrade to current release

New Features and Enhancements Increase the Power & Flexibility of AcqKnowledge! This upgrade to the current release of AcqKnowledge adds the newest features and user interface enhancements for your data acquisition and analysis needs. AcqKnowledge New Features Version 5.0.3 B-Alert System users: 64-bit support Stellar Telemetry License users: New features, including 64-bit support, Real-Time Mode (allows data […]

View All
Latest News

New Citations | Psychophysiology, Chewing Study, Pulse Wave Velocity

Recent studies in Psychophysiology, EMG, ECG and PPG measurement utilizing BIOPAC software and hardware: Fight or Flight (Reflex Response Time) “Fight or flight” is a physiological response that occurs due to a perceived threat to survival. It can physiologically be observed through an increase in heart rate, respiratory rate, blood pressure, oxygen availability, and other mechanisms. In […]

New Citations | Heart Rate & Heart Rate Variability, Wingate Anaerobic Test, and Neuroscience of Music

HRV, EMG, and EEG studies using BIOPAC hardware and software include: DON’T STRESS Humans encounter various stressful situations everyday at work, home, and school. Such stress when experienced at high degrees and/or for a long duration of time could lead to cardiovascular diseases, cognitive dysfunctions, and psychological disorders. This study examined the validity of a novel physiological measurement […]

Read All
Request a Demonstration
Request a Demonstration