CONCURRENT STIMULATION EFFECT DETECTION

摘要

Functional near infrared spectroscopy (fNIRS) imaging is utilized to measure the influence of stimulation in real time. An fNIRS imaging device is integrated into a transcranial direct current stimulation (tDCS) stimulator by embedding fNIRS optodes on the tDCS stimulating electrodes. During tDCS stimulation, blood oxygenation levels are measured. For example, concentrations of oxyhemoglobin and deoxyhemoglobin are measured and compared to the concentrations of a baseline resting state to provide feedback on the efficacy of tDCS. Based on the feedback, a tDCS threshold and a dose-response relation for a particular subject can be quantified, and individualized stimulation parameters can be determined for the particular subject.