Brain measurement apparatus

Abstract

A brain measurement apparatus includes: a magnetoencephalograph module having a cell; a pump laser configured to emit pump light; a probe laser configured to emit probe light; an optical sensor group configured to detect a polarization plane angle of the probe light having passed through the sensitivity region; a bias magnetic field coil configured to apply a bias magnetic field; and bias magnetic field gradient correction coils configured to correct a gradient of the bias magnetic field; and an MRI module having a transmission coil for transmitting an RF pulse of a predetermined frequency and a receiver coil configured to detect a nuclear magnetic resonance signal. At least one of the coil that applies a static magnetic field and the coil that applies a gradient magnetic field is configured by the same coil as the bias magnetic field coil or the bias magnetic field gradient correction coils.