Your Study with E4 wristband - Guides & Tutorials
What should I know to use EDA data in my experiment?
What is Electrodermal Activity (EDA)? Electrodermal activity refers to electrical changes, measured at the surface of the skin, that arise when the skin receives innervating signals from the brain. For most people, if you experience emotional ac...
What should I know to use the PPG/IBI data in my experiment?
PPG (Photoplethysmography) is used to give the "blood volume pulse (BVP)" signal shown in the bottom graph of both of the images below. The PPG is mainly used to identify the heart rate of the person wearing the sensor. Heart rate is com...