To provide a measurement method and a measurement device that are noninvasive and are able to make a measurement even in a deep part of an organism and are able to measure a state of neural transmission.SOLUTION: A measuring method for measuring neural transmission of a measurement target by a magnetic resonance method using an electronic spin, comprises: a first step that obtains a magnetic resonance signal by applying the magnetic resonance method to the measurement target containing a contrast medium containing a potential response molecule; and a second step that obtains a state of neural transmission of the measurement target from the magnetic resonance signal obtained in the first step. A measurement device that measures a state of a neural transmission of a measurement target by a magnetic resonance method using an electronic spin, comprises: signal acquisition means that acquires a magnetic resonance signal by applying the magnetic resonance method to the measurement target containing a contrast medium containing a potential response molecule; and neural transmission acquisition means that acquires a state of neural transmission of the measurement target from the magnetic resonance signal obtained by the signal acquisition means.SELECTED DRAWING: Figure 5【課題】 非侵襲性であり、生体の深部であっても計測ができ、神経伝達の状態を計測できる計測方法および計測装置を提供する。【解決手段】 電子スピンを用いた磁気共鳴法により計測対象における神経伝達の状態を計測する計測方法であって、電位応答性分子を含む造影剤を含む前記計測対象に磁気共鳴法を適用して磁気共鳴信号を得る第1ステップと、前記第1ステップで得られた磁気共鳴信号から前記計測対象における神経伝達の状態を得る第2ステップとを含む、計測方法。電子スピンを用いた磁気共鳴法により計測対象における神経伝達の状態を計測する計測装置であって、電位応答性分子を含む造影剤を含む前記計測対象に磁気共鳴法を適用して磁気共鳴信号を得る信号取得手段と、前記信号取得手段で得られた磁気共鳴信号から前記計測対象における神経伝達の状態を得る神経伝達状態取得手段とを含む、計測装置。【選択図】 図5