BCIA Peripheral Biofeedback Modalities (EMG, Temperature, GSR)

Question 1

Which peripheral biofeedback modality measures electrical activity produced by skeletal muscle contractions?

Accepted Answer

Electromyography (EMG)

Answer

Galvanic skin response (GSR)

Answer

Thermal biofeedback

Answer

Heart rate variability (HRV)

Question 2

In thermal biofeedback, the sensor is most commonly placed on which anatomical site for general stress training?

Accepted Answer

The index or middle finger

Answer

The forehead

Answer

The forearm

Answer

The earlobe

Question 3

Galvanic skin response (GSR) biofeedback measures changes in which physiological parameter?

Accepted Answer

Electrodermal activity related to sweat gland output

Answer

Skin blood flow velocity

Answer

Subcutaneous muscle tension

Answer

Peripheral nerve conduction velocity

Question 4

A client with tension-type headaches would most likely benefit from which peripheral biofeedback protocol?

Accepted Answer

EMG biofeedback at the frontalis or trapezius muscles

Answer

GSR biofeedback targeting palm electrodes

Answer

Thermal biofeedback at the forehead

Answer

Temperature biofeedback at the fingertip

Question 5

During sympathetic arousal, peripheral skin temperature typically:

Accepted Answer

Decreases due to vasoconstriction

Answer

Increases due to vasodilation

Answer

Remains unchanged

Answer

Increases due to sweating

Question 6

Which EMG electrode placement configuration records the potential difference between two active sites over the same muscle?

Accepted Answer

Bipolar recording

Answer

Monopolar recording

Answer

Referential recording

Answer

Common-mode recording