BIOPAC® Systems, Inc. Logo

Script 005 – Mark TTL start and end




BIOPAC Developer - scripting, network data transfer, API, support

This script places start and end markers at the beginning and end of a series of selected TTL pulses. (If a single TTL pulse is selected, it will place the markers at the rising and falling edges.) This is useful for marking the beginning and end of experimental conditions.

To use the script, select a burst of pulses and hit run. The markers will be inserted on the rising edge of the first pulse and the falling edge of the last pulse in the selection. Repeat this process to mark any additional bursts of pulses.

This script can be modified to place end marker a few seconds after the last pulse, rather than on the falling edge, so you can measure the physiological responses that occur in the few seconds after the last stimulus pulse. See Script 006 to download the modified version.

Script download contains sample data file and BIOPAC Basic Script.

Associated Products

Spotlight On
SS25LB, TSD121C Hand Dynamometer

Hand Clench Dynamometer for MRI

Use to measure clench force in the MRI; clench force range 0-50 kgf. The lightweight, ergonomically designed transducer provides direct readings in kilograms or pounds. Use in isolation or combine with EMG recordings for in-depth studies of muscular activity. The isometric design improves experiment repeatability and accuracy. The TSD121B-MRI has an 8 meter cable terminated for connection […]

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