BIOPAC® Systems, Inc. Logo

249 – Online Averaging Latency Parameters

This application note describes the procedure to determine a relational curve between specified latencies and the Inter-Stimulus Interval (ISI) using the online averaging feature in AcqKnowledge.

The Inter-Stimulus Interval (ISI) is the interval between stimulus pulses as generated by the STM100C module under software commands from AcqKnowledge. For averaging mode, this stimulus signal triggers a stimulus response that is read in by an MP unit many times for the purposes of reducing noise and smoothing the response. The repetition interval of the stimulus signal (ISI) is a critical factor for some averaging measurements, especially when a subject under test, who may be prone to unpredictable movement, necessitates rapid stimulus/response measurements. For large intervals, the latency factor dominates and as that factor decreases, other processing times become increasingly dominant.

Spotlight On
MedelOpt cyclist

MedelOpt Mobility Systems

MedelOpt® Mobility systems provide high-density NIRS with EEG available in a flexible, adaptable headset for high density mapping with complete mobility with an unlimited range of acquisition for up to 8 hours. MedelOpt Mobility adjusts to real-world situations or virtual reality (VR) environments with a specific design to fit any head mounted VR display. Use for […]

View All
Latest News

New Citations | BIOPAC in Motivation Studies

Discovering and understanding what motivates humans to produce better results has intrigued many researchers. Many researchers have explored the psychophysiological processes that drive our behavior. Here are some recent studies that have used BIOPAC systems to research motivation… Motivation and Pleasure Deficits Undermine the Benefits of Social Affiliation in Psychosis. Blanchard, J. J., Smith, J. […]

New Citations | BIOPAC in Eye Tracking Studies

Eye tracking technology has come a long way and has enabled researchers to conduct mobile experiments and track participants in real world scenarios. These featured studies demonstrate some of the use cases for mobile eye tracking technology. Here are some recent studies that have used BIOPAC systems for eye tracking research… Drivers’ gaze patterns when resuming […]

Read All
Request a Demonstration
Request a Demonstration