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Showing posts with the label EEG
“Independent Researcher, Librarian, Music Educator and Composer" - Ted Hunter

Patent No. 5036858 Method and apparatus for changing brain wave frequency

  Patent No. 5036858 Method and apparatus for changing brain wave frequency (Carter, et al., Aug 6, 1991) (RE36,348 Carter, et al., Oct 19, 1999) Abstract A method for changing brain wave frequency to a desired frequency determines a current brain wave frequency of a user, generates two frequencies with a frequency difference of a magnitude between that of the current actual brain wave frequency and the desired frequency but always within a predetermined range of the current actual brain wave frequency, and produces an output to the user corresponding to the two frequencies. One apparatus to accomplish the method has a computer processor, a computer memory, EEG electrodes along with an amplifier, a programmable timing generator responsive to the computer processor for generating the two frequencies, audio amplifiers and a beat frequency generator driving a visual frequency amplifier. Notes: DISCLOSURE OF INVENTION A m

Patent No. 5023783 Evoked response audiometer for testing sleeping subjects

  Patent No. 5023783 Evoked response audiometer for testing sleeping subjects (Cohen, et al., Jun 11, 1991) Abstract An evoked response audiometer for sleeping subjects comprising a function generator for supplying to a sleeping patient an auditory signal consisting of a carrier frequency which is periodically modulated at frequencies in excess of 60 Hz, the frequency of modulation being varied in a generally increasing manner for auditory signals of higher frequencies such that the stimulus is frequency specific, a detector for sampling and analyzing brain potentials evoked by said signal, a low-pass filter providing a time window which samples the brain potentials for a predetermined interval to provide sets of fourier analysis samples containing amplitude and phase data in narrow bands centered on the modulation frequency and its second harmonic, a computer for analyzing the Fourier analysis samples to extract means values of the a

Patent No. 4883067 Method and apparatus for translating the EEG into music to induce and control various psychological and physiological states and to control a musical instrument

  Patent No. 4883067   Assignee:  Neurosonics, Inc. (Baltimore, MD) Method and apparatus for translating the EEG into music to induce and control various psychological and physiological states and to control a musical instrument (Knispel, et al., Nov 28, 1989) Abstract A method and apparatus for applying a musical feedback signal to the human brain, or any other brain, to induce controllable psychological and physiological responses. A signal representing the ongoing electroencephalographic (EEG) signal of a brain preferably is obtained from the electrode location on the scalp known as CZ or P3 in clinical notation. A signal processor converts the ongoing EEG into electrical signals which are converted into music by synthesizers. The music is acoustically fed back to the brain after a time delay calculated to shift the phase of the feedback in order to reinforce specific or desired ongoing EEG activity from the scalp pos

PatentNo. 4800893 Kinesthetic physical movement feedback display for controlling the nervous system of a living organism

  PatentNo. 4800893   Kinesthetic physical movement feedback display for controlling the nervous system of a living organism (Ross, et al., Jan 31, 1989) Abstract A method and system for providing as a biofeedback signal a visual display showing kinesthetic physical movement to enable a subject to produce desired thought patterns. Sensors or electrodes are connected to the subject at one or more topological locations. The signals detected by the sensors are input to a conventional EEG device. The EEG output is processed into one or more analog voltage signals. These analog signals are input to a computer which generates a video display and audio if desired. The image on the display depicts kinesthetic physical movement as a function of the analog voltage. Notes: BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates in general to the field which has become known as the biofeedback field,