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Related to biofeedback: Neurofeedback


method for learning to increase one's ability to control biological responses, such as blood pressure, muscle tension, and heart rate. Sophisticated instruments are often used to measure physiological responses and make them apparent to the patient, who then tries to alter and ultimately control them without the aid of monitoring devices. Biofeedback programs have been used to teach patients to relax muscles or adjust blood flow in the case of headache, to help partially paralyzed stroke victims activate muscles, and to alleviate anxiety in dental patients.
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A woman wears a biofeedback monitor at her temple. Biofeedback is a technique in which people are trained to gain awareness and insight using signals from their own bodies. Michael Nemeth/The Image Bank/Getty Images.


(religion, spiritualism, and occult)

Biofeedback is the measurement of brain wave activity indicative of the depth of a trance, among other things. The principle behind biofeedback is that by providing the individual with knowledge of his or her internal body processes, these processes can be consciously controlled. Using biofeedback instruments, the operator can consciously modify his or her brainwave activity, heart rate, blood pressure, and skin resistance. This can be useful in relaxing into a deeper state of trance. The practice of using biofeedback machines was first introduced in the United States by Joe Kamiya, as reported in Psychology Today (April 1968, v. 1, no. 11). Biofeedback can use many tools: EEGs (electroencephalograms) to measure brain waves, EKGs (electrocardiograms) to graph heart processes, GSRs (galvanic skin responses) to measure skin responses, and EMGs (electromyographs) to check muscle tensions.

Biofeedback deals with the alpha waves (8-13 cycles per second frequency), beta waves (14-50 cycles), theta waves (4-8 cycles), and delta waves (0.5-4 cycles). The American Society for Psychical Research found that biofeedback can be effective in bringing the psi faculty under control. The beta frequency is the normal waking state but by relaxing—using such techniques as meditation, massage, yoga, or hypnosis—it is relatively easy to descend into the alpha state. Psychologists use biofeedback to help their patients cope with pain. Physical therapists use it to help stroke victims regain movement in paralyzed muscles.

In a typical biofeedback session, the subject has electrodes connected to the back of the head, the right forearm, and two fingers of the right hand. A respiration gauge may also be worn. These electrodes detect any changes in internal states and relay them back to the subject by way of lights, moving needles, or sounds. The Silva Mind Control organization, founded by José Silva (1914–1999) in the 1960s, conducted sessions leading to what they termed “functioning in the alpha.” It emphasized positive thinking, self-hypnosis, and visualization.


Holroyd, Stuart: The Supernatural: Minds Without Boundaries. London: Aldus, 1975
Karlins, Marvin and Lewis M. Andrews: Biofeedback; Turning on the Power of Your Mind. New York: Lippincott, 1972
Lawrence, Jodi: Alpha Brain Waves. New York: Avon, 1972


The use of instrumentation to provide immediate visual or auditory information to an individual about changes in one or more of the individual's physiologic processes not ordinarily perceived, such as brainwave activity, muscle tension, or blood pressure, in order to manipulate the process by conscious mental control.
References in periodicals archive ?
Peripheral biofeedback is particularly useful and can help with stress-related conditions where there is sympathetic or adrenal stress.
Biofeedback is most helpful for conditions involving muscle tension.
In: Brain and body in sport and exercise: Biofeedback Applications in Performance Enhancement.
The investigators were not surprised that biofeedback worked significantly better for episodic headache, because chronic headaches often are recalcitrant to many treatments.
As with PEMF, there is an extensive body of peer-reviewed literature on the safety and clinical effectiveness of biofeedback for the treatment of a variety of conditions, some of which are difficult to resolve by other methods.
Already trained in acupuncture, Charmaine decided she would also train in resonance biofeedback therapy and started offering it last year at the clinic.
The Boys Totem Neurofeedback Project: A pilot study of EEG biofeedback with incarcerated juvenile felons.
sEMG biofeedback is considered a noninvasive procedure and it provides immediate, objective information about underlying muscle activity.
Other patients cite biofeedback, reducing stress and eliminating ``trigger foods'' (such as alcohol, chocolate, nuts or aged cheese) as effective.
Contract award: Delivery of equipment under the project Innovation Research at the University FTVS - analyzer technique pedaling with biofeedback and transcutaneous oxygen monitor.
para]]Distinguished Neuro-Oncologist at University Hospitals Case Medical Center Will Advise the Company on Development of Its Metronomic Biofeedback Pump[[/para]]