EDA/GSR (Electrodermal Activity)

Measure emotional arousal through skin conductivity

Electrodermal activity (EDA, also known as galvanic skin response; GSR) measures the activity of the autonomic nervous system. Our level of emotional arousal changes in response to the environment we’re in – if something is scary, threatening, joyful, or otherwise emotionally relevant, then the subsequent change in emotional response that we experience also increases eccrine sweat gland activity. EDA / GSR serves as a valuable index of emotional arousal as it offers insights into a respondent’s underlying physiological and psychological processes.

EDA/GSR used to gauge a participant’s stress levels during a VR study.

Automated EDA/GSR analyses

Quantifying moments of increased physiological arousal allows you to better understand the impact of stimuli. Through our open-source R Notebooks, iMotions provides automatic EDA peak detection, as well as epoching and aggregates of binned data, helping you to fully evaluate the effect of the stimulus.

Quickly and easily assess emotional intensity

Researchers are already using the EDA/GSR module to:

Measure cognitive load in education
Investigate food craving regulation
Explore player experience in VR games
Investigate the effects of sleep deprivation
And more

Electrodermal Activity (EDA) / Galvanic Skin ResponsePDF

EDA/GSR and PPG used as biosensors within the “invisible gorilla” test.

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FAQ

Here you can find some of the questions we are asked on a regular basis. If you have questions you cannot find here, or elsewhere on our website, please contact us here.

What is Electrodermal Activity (EDA/GSR)?

What is galvanic skin response used for?

Why is galvanic skin response measured on the fingers?

Features

Hardware agnostic
Connection to Shimmer3, BIOPAC, Bionomadix, or Biosignals Plux
Data collection and visualization
Collect, visualize, analyze, and export raw and processed data
Automatic peak detection
EDA/GSR peaks, and a range of other metrics are automatically detected and calculated using R notebooks
Built-in QA
Integrated quality assurance tools
Collect data from multiple devices
Connect up to 6 Shimmer devices on one iMotions software license
Further device integrations
- Additionally collect photoplethysmography and accelerometer data with Shimmer
Battery level and signal strength
See in the iMotions software if the connected devices are powered and have a strong signal

Brochures

iMotions EDA / GSR Solutions

GSR Hardware

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Enable Multimodal Research

Designed for academics with the mission to elevate the quality, and quantity of human insights, iMotions is the only truly multi modal research platform which allows you to capture the full picture of human behavior. Read about the features for each module which have been developed to ensure data validity and ease of use and configuration.