BIOPAC® Systems, Inc. Logo

EDA (GSR) subject preparation

BIOPAC offers a variety of setups for recording electrodermal activity, including

The following general guidelines will improve the quality of data from any setup:

  1. Never abrade the skin.
    • Note: For MRI setups, lightly abrading the skin may sometimes help if the subject has particularly calloused fingers. Still, this is not recommended and should be used as a last resort only. See MRI Guidelines for additional information.
  2. If you clean the electrode site, do it with water for all subjects.
  3. Make sure you have enough gel on the electrodes. (Dry disposable electrodes will result in a deteriorated signal. Follow the storage guidelines for the electrodes to prevent them from drying out)
  4. Use isotonic gel. (If using disposable electrodes and they appear dry you can still use them by applying isotonic gel as long as the dry gel on the electrodes has not crystallized)
  5. Attach the electrodes 5-10 minutes before recording.

For more detailed information, see Guidelines – EDA, EDR, GSR, SCL, and SCR.

Associated Applications

Associated Application Notes

Associated Disciplines

Associated Advanced Features

Spotlight On

Eye Tracking Glasses ETV

The ETVision (ETV) wearable eye tracking glasses resemble an eyeglasses frame that can be worn by itself or over the participant’s prescription eyeglasses. It contains miniature “eye cameras” that view each eye and a “scene camera” that views the scene in front of the participant, and a microphone. An optional visor can be mounted to […]

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