DEVICE AND METHOD OF PHASE-LOCKING BRAIN STIMULATION TO ELECTROENCEPHALOGRAPHIC RHYTHMS
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United States of America Patent
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Aug 4, 2016
app pub date -
Jan 5, 2016
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Jan 30, 2015
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Abstract
The device and method for phase-locking brain stimulation to electroencephalographic rhythms improves the accuracy, specificity, and effectiveness of non-invasive brain stimulation devices by timing pulses of brain stimulation to occur in synchrony with naturally occurring brain rhythms measured at the scalp of a patient in order to treat an assortment of neurological and psychiatric conditions. The device and method provided herein improve non-invasive brain stimulation techniques by time-locking the onset of brain stimulation to the phase of naturally-occurring rhythmic oscillations of brain activity that can be recorded with electroencephalography (EEG). The device and method perform real-time signal analysis of a specified EEG rhythm, extract frequency-domain phase information to estimate the next occurrence of a desired EEG rhythm phase, and trigger a brain stimulation pulse so as to align precisely with this predicted EEG phase.
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