To find out, Cohen and his colleagues turned to an imaging technique called magnetoencephalography, or MEG.

到答案，Cohen和同事求助于叫作“脑图描记术（MEG）”的成像技术。

Utilizing magnetoencephalography (MEG), a brain imaging technique, the researchers observed this fascinating phenomenon.

研究人员利用脑图（MEG）这种大脑成像技术观察到这一令人着迷的现象。