A method for accelerating the release of neurotransmitters includes a step of radiating light from within a cerebral blood vessel to accelerate the release of the neurotransmitters. An optomedical device includes a main body configured to be introduced into a cerebral blood vessel； a light emitting unit arranged on the main body, the light emitting unit configured to radiate light to accelerate the release of neurotransmitters； and a control unit configured to control a light emitting action of the light emitting unit.
