Biofeedback equipment has many applications including stress management, pain management, and peak performance. When you decide that you want to make a purchase there are several things to consider.
Safety
Some of the sensors make contact with a person’s skin to measure electrical signals. It is very important that precautions have been taken in the design to protect the person who is connected to the instrument from electrical shock. The FDA (Food and Drug Administration) regulates professional medical devices and sets rules for safety. If they registered with the FDA then the manufacturer would have to follow safety rules. They would be subject to inspections by the FDA which would check to make sure that the company was doing what is required to keep the people using their biofeedback equipment safe from injury. You must make sure that the instrument you are considering buying is registered with the FDA.
Modalities
There are several different modalities of biofeedback equipment including EMG (Electromyograph) which measures muscle activity, Skin Temperature, Skin Conductance which measures changes in the amount of sweat on the skin, Respiration, and Heart Rate/Heart Rate Variability. EEG (Electroencephalography) or Brainwave Biofeedback is another modality which is usually dealt with separately and is also referred to as Neurofeedback.
You need to decide which of these modalities you want to work with. I suggest that you should have the capability of working with all of them especially for performing a psychophysiological stress profile or assessment. This is usually an initial session to get baseline readings on each modality at rest and under stress. I recommend at least 5 channels so that you can measure 5 different signals at the same time. You can do with fewer channels if you don’t plan to do stress profiles. Some systems will allow you to alternate different sensors on a two 2 channel system for example. You could have all of the modalities and just work with 1 or 2 at a time. I don’t suggest buying a system that only allows you to do one modality i.e. Temperature unless you have other equipment to do other modalities.
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Biofeedback equipment has many applications including stress management, pain management, and peak performance.