US 4,227,516 A · Apparatus for electrophysiological stimulation

Abstract

Apparatus for the electrophysiological stimulation of a patient is provided for creating an analgesic condition in the patient to induce sleep, treat psychosomatic disorders, and to aid in the induction of electrohypnosis and altered states of consciousness. The foregoing is achieved by repetitive stimuli in the patient for whom external influences, namely those of sight and sound, are intentionally excluded. The apparatus produces electrical stimulation of the patient in the form of a modulated wave which produces impulses in the delta, theta, alpha and beta regions of the brain's electrical activity, the electrical stimulation being accompanied by two sources of audio stimulation, one of which is a sinusoidal tone modulated by and synchronized with the electrical stimulation, and the other is derived from sound recordings.

Claims15

Dependent claims

A system for producing electrophysiological stimulations in a patient so as to stimulate the effects of brain wave activity in at least one of the delta, theta, alpha and beta frequency ranges, said system including:

first means for generating a first wave in a predetermined frequency range extending above the delta, theta, alpha and beta frequency ranges;
second means for generating a second wave in at least one of said delta, theta, alpha and beta frequency ranges and connected to said first means to cause the first wave to be modulated by the second wave to cause the first means to produce bursts of the first wave occurring at the frequency of the second wave;
and means connected to the first means for introducing the bursts of the first wave from the first means to electrode means mounted on the forehead of the patient for the electrophysiological stimulation of the patient.

Dependencies are inferred from the claim text.

Apparatus for electrophysiological stimulation

Life of this patent

Apparatus for electrophysiological stimulation

Life of this patent

Abstract

Claims15