dermo-, derm-, derma-, dermato-, dermat-, -derm, -derma, -dermatic, -dermatous, -dermis, -dermal, -dermic, -dermoid, -dermatoid

(Greek: skin)

electrodermal activity therapy
A type of biofeedback therapy in which sensors attached to the palm of the hand or palmar aspects of the fingers are used to monitor sweat output in response to stress.

It is used in the treatment of stress, anxiety disorders, chronic pain, and hyperhidrosis (excessive sweating).

electrodermal audiometry
A method for determining hearing thresholds in which a harmless electric shock is used to condition the subject to s pure tone, which thereafter, coupled with the anticipation of a shock, elicits a brief electrodermal response.

The lowest intensity of the sound that produces the skin response is considered the patient's hearing threshold.

electrodermal reaction
The change in electric resistance of the skin during emotional stress.

This is one of the functional variables measured by polygraphs.

electrodermal response, EDR; galvanic skin response
1. A change in the electrical properties of the skin in response to stress or anxiety which can be measured either by recording the electrical resistance of the skin or by recording weak currents generated by the body.
2. A technique by which sensors monitor the skin's electrical resistance to treat anxiety disorders, chronic pain, hyperhidrosis, and stress.
3. A transient change in certain electrical properties of the skin, associated with the sweat gland activity and elicited by any stimulus that evokes an arousal or orienting response.

Originally it was termed the psychogalvanic reflex, which later became known as the galvanic skin response.

1. A surgical knife powered by electricity for incising the skin or cutting thin slices for skin transplantation or to treat small lesions.
2. An electric machine used for cutting split-skin grafts.
epidermal nevus
Raised lesions present at birth. They may be hyperkeratotic (horny layer of the skin) and widely distributed.