The operating steps and principles of the psychological skin conductance tester for the dilation of blood vessels in the skin during emotional states

Simply put, it reflects your emotions or physiological state by measuring changes in skin resistance, such as a decrease in resistance when under stress. The operation mainly consists of three steps:‌cleanse skin‌、‌Stick the electrode properly‌、‌Start recording‌.

1operating steps

‌cleanse skin‌Wipe your fingers or palms with alcohol or water to ensure dryness and reduce interference.

‌Place electrodes‌Place two electrodes tightly against the skin, usually with the player's fingers or palms. The higher the fit, the more accurate the data.

‌Start measurement‌Turn on the device, record resistance changes, respond quickly, and be able to see fluctuations in real time.

2、 Working principle

The core is skin conductivity（EDA）And skin conductance response（GSR）. When you are stimulated or experience emotional fluctuations, sweat gland secretion increases, skin resistance decreases, and conductivity increases. The device works by detecting these changes.

3、 Application scenarios

‌research field‌Commonly used in emotional, cognitive load, or user experience research.

‌Clinical diagnosis‌Assist in assessing anxiety, post-traumatic stress disorder, etc.

‌Product Design‌For example, optimizing the interactive experience or user interface.

4、 Technical parameters

‌display range‌For example:0–±50μADifferent models may have slight differences.

‌measurement range‌: Schematic value of skin conductance0–2000Corresponding resistance2mΩ–2kΩ.

5、 Precautions

The electrodes should be tightly attached to avoid loosening and affecting the data.

Keep the skin clean and dry before testing.

Avoid measuring during intense exercise or excessive emotional fluctuations.