One study suggests that during the induction stage of hypnosis, highly hypnotizable people experience a shift to right-sided electrodermal dominance, while low hypnotizable people experience a left-sided shift. Although a hypnotist can ask a subject questions to help determine trance depth and level of suggestibility, electrodermal activity measurements provide more immediate, accurate feedback. We can also observe from these measurements that high-stress individuals may have more difficulty accomplishing complex cognitive tasks that are also highly stressful.Д®stablishing the depth of a trance helps hypnotists improve experience and outcomes in therapeutic and experimental settings. ItвЂ™s clear from these and other studies that electrodermal activity varies depending on the components and parts of the brain that are being engaged. 5 Previous research has also found that tonic skin conductance, one of the two components of electrodermal response, changes вЂњmainly as a function of cognitive activity.вЂќ 6

For instance, recent research shows that the performance of mentally demanding tasks increases electrodermal response. In addition to emotions, another cognitive state that electrodermal activity can help determine is attention. 3 Additionally, electrodermal activity may help detect aggressive and violent behavior tendencies when combined with heart-rate monitoring. A 1991 study found that introverts react more strongly to negative mood induction, while introverts react more strongly to positive mood induction. Interestingly, EDA responses also correlate to introversion and extroversion. 1 Similarly, a 2018 study found that skin conductance levels were lower for depressive subjects compared non-depressed subjects.

For example, one study conducted in the 1980s found that subjects who had high scores on an anxiety test had lower skin conductance levels and lower skin conductance response amplitudes compared to subjects with low anxiety. Studies have confirmed that electrodermal activity does indeed correlate to emotional states. A word, image, sound, or other stimulus can illicit an emotional response, which manifests as a change in the electrical conductivity of the skin. Like other applications of EDA, emotional reactions can be observed from the bodyвЂ™s response to a stimulus. Perhaps the most well-known application of electrodermal activity testing is determining emotional states of the mind. This is called electrodermal activity (EDA).ДЄlso known as skin conductance, electrodermal response (EDR), psychogalvanic reflex (PGR), and galvanic skin response (GSR), measurements of electrodermal activity may tell us a variety of things about the state of the body, including the following. Thanks to scientific advancements, variations in the electrical characteristics of the skin can be measured. The skin also conducts electricity in the body. Our cells conduct electrical currents, and electricity is needed for the body and the brain to communicate. ItвЂ™s in the air, itвЂ™s deep inside the earth, and itвЂ™s even in our bodies.

Galvanic skin response graph