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Chapter 7: Biofeedback

Biofeedback units measure physiologic processes.

a. True

b. False

b. False

The reference electrode has no charge associated with it.

a. True

b. False

a. True

A high signal gain means the biofeedback unit has a low sensitivity for muscle activity.

a. True

b. False

b. False

Some biofeedback instruments measure peripheral skin temperature. Which of the following do they also measure?

a. finger phototransmission

b. skin conductance activity

c. electromyographic activity

d. all of the above

d. all of the above

Biofeedback electrodes should be placed as near to the muscle of interest as possible. They should also be placed ______________ to the muscle.

a. perpendicular

b. parallel

c. obliquely

d. none of the above

b. parallel

What is the principle that allows the biofeedback unit to eliminate common noise between active electrodes?

a. CMRR

b. filtering

c. rectification

d. integration

a. CMRR

Raw EMG must be converted to a visual or audio format. What is the order of that conversion?

a. integrated, rectified, smoothed

b. smoothed, rectified, integrated

c. rectified, smoothed, integrated

d. rectified, integrated, smoothed

b. smoothed, rectified, integrated

The goal of using biofeedback in muscle reeducation is to elicit a

a. twitch response

b. muscle contraction

c. decrease in pain

d. relaxation

...

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