The Mindfield eSense Skin Response is a small sensor to measure your skin conductance using two electrodes and the microphone input of your iPhone® (from 3G), iPad® (from the first-gen) und iPod touch® (from the 4th-gen). A free app by Mindfield® is included to illustrate your skin conductance in different ways. You can export the values via e-mail and have different possibilities for biofeedback training.
SKIN RESPONSE / SKIN CONDUCTANCE:
Skin response, also known as galvanic skin response (GSR), electrodermal response (EDR) or skin conductance (SC) is a method of measuring the electrical conductance of the skin, which varies with its moisture level. The conductance is measured in µSiemens by the eSense Skin Response. Two electrodes are fixated to the index and middle finger, not too tight to squeeze the blood but also not too loose to keep them in position. The electrodes should not move around, the hand should lay relaxed. The eSense Skin Response measures the electrical conductance (which is the inverse of the electrical resistance) between 2 points, and is essentially a type of ohmmeter. Active measuring involves sending a very small amount of current through the fingers.
HOW TO USE:
- With buying the eSense Skin Response you can download our free app in the App Store by Apple®. (you can also do this before but without a sensor the app will deliver senseless values)
- Connect the electrodes to your middle and index finger upper part. - Connect the eSense Skin Response to your iOS device microphone input.
- Start the App, read the included instructions and start using your eSense!
SUPPORTED iOS DEVICES:
- Apple® iPhone® from 3G
- Apple® iPad® from the first generation
- Apple® iPod touch® from the 4th generation
- Mindfield® eSense Skin Response Sensor
- 2 Velcro®-Electrodes
- Free App by Mindfield® on the App Store
The perspiratory glands of the skin are innervated by the sympathetic nervous system only and are a good indicator of an inner stress level and activation. This aspect can be demonstrated during measurement by confrontation with a stimulus like mental activity, emotional stress, deep breathing or an unexpected loud noise. The skin response should increase as the skin becomes wettish. To get a good measurement keep the room temperature constant, breathe relaxed (not too deep) and do not move the hand with the electrodes.