A counselor uses biofeedback training to increase the temperature in the client's right hand to ward off migraines. Which device would be used?

• A. A temperature trainer
• B. A heart rate monitor
• C. A galvanic skin response meter
• D. A digital thermometer

Answer: (A)

Temperature biofeedback trains the body to increase skin temperature in the hands, which helps boost peripheral blood flow and can reduce migraines. The device used for this purpose is a temperature trainer, which gives real-time feedback on the hand’s skin temperature so the person can learn to raise warmth through relaxation and mental strategies. The other devices monitor different things: a heart rate monitor tracks heart rate, not temperature; a galvanic skin response meter measures skin conductance tied to arousal, not temperature; a digital thermometer measures temperature but doesn’t provide the ongoing, operant feedback used in biofeedback training.