Abstract: An optical probe includes a light source configured to generate an optical signal, a plurality of waveguides configured to guide the optical signal to a target, a plurality of electrodes configured to record an electrical signal generated by the target, and a modulator configured to transmit the optical signal of the light source to at least one target waveguide from among the plurality of waveguides.

Abstract: Provided is an artificial intelligence-based noninvasive brain circuit control therapy system for sleep enhancement, the system including a wearable device including a first wearable member and a second wearable member formed to be wearable on a body of a user, a first sensor unit disposed on the first wearable member to detect an electroencephalogram (EEG), a second sensor unit disposed on the second wearable member to detect a biometric signal different from the EEG, and a stimulation means disposed on the first wearable member to stimulate the brain according to a stimulation signal provided thereto; a learning unit configured to machine-learn a criterion for determination of a sleep stage of the user based on a first sensing signal generated by the first sensor unit and a second sensing signal generated by the second sensor unit; and a determination unit configured to determine a current sleep stage of the user based on the criterion for determination, generate a stimulation signal corresponding to a dete