Types of Biofeedback Machines or Biofeedback Techniques
This device monitors
brain wave activity. The method is relatively imprecise. The brain emits many electrical
signals of various frequencies. Only a very few of these waves have been directly tied to
specific disorders or mental states. The following are classification of brain waves:
- Beta (awake)
- Alpha (calm relaxation)
- Theta (light sleep)
- Delta (deep sleep)
Since alpha waves are commonly observed during relaxation, the researchers thought that
patients could relief from anxiety, insomnia and perhaps epilepsy by learning to increase
their alpha wave activity. But further research showed that alpha training is only useful
if it is combined with other therapies. These days, insomniacs are taught to control theta
waves, and epileptics have found relief by monitoring waves produced during seizures. As
technology advances, EEG may be used for other neurological diseases.
Types of Biofeedback Instruments
Other biofeedback machines can monitor heart rate and blood pressure, both of which
change in response to stress, arrhythmia and hypertension. You can purchase biofeedback
instruments to use at home, though the most affordable are the type that monitor only one
system, such as temperature.
Biofeedback is more effective if you combine it with relaxation techniques, self
hypnotism and psychotherapy. In this way you not only learn how to control your reactions
to stress but you can explore the causes of the stress and your thoughts and behavior that
contribute to it.
Next: Biofeedback in Action
Galvanic skin response
(GSH) or Electrodermal Response (EDR)
Alternative Therapies] [Holisticonline Home]
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