In short, Brain theory suggested a correlation between mental experience and the activity of relatively homogenous nerve-cell units conducting essentially homogeneous impulses through homogeneous cerebral tissue.

• [参考译文]总之，大脑理论说明精神感觉和相对相似的神经细胞单位的活动有关系。这种活动通过相似的大脑皮层组织传导的基本相似的脉冲。