Biofeedback is based on reducing unpleasant bodily symptoms of stress it involves:
- Wiring patient up to a biofeedback machine that gives patient feedback on bodily responses.
- This can be EEG (brain activity), heart rate, sweat (GSR) or muscle tension.
- Patient is taught relaxation techniques and the idea is once a patient is aware of bodily processes, the successful use of relaxation techniques will act as +ve reinforcement to lower responses.
Illustrated by Budzynski's study:
- See whether biofeedback is effective in reducing tension headaches. 18 P's used - volunteered
- 3 groups, A - biofeedback with relaxation training + EMG feedback. B - pseudofeedback. C - waiting list. (prior groups kept record of headaches rating them from 0-5 for baseline comp.)
- 16 training sessions, 2x a week for 8 weeks. A were taught relaxation and told that the clicks of the biofeedback machine reflected muscle tension - slower clicks, less tension. Also told to practice relaxation at home for 15-20 minutes.
- Group A - sig. lower muscle tension than B, headaches had dropped significantly below baseline and less reported than B & C. Reduction in drug usage, insomnia, depression etc.
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