The correlation between white-matter microstructure and the complexity of spontaneous brain activity: A difussion tensor imaging-MEG study

► A correlation between oscillatory complexity and connectivity has been hypothesized. ► We tested this hypothesis in vivo by combining MEG and FA in a control sample. ► Complexity and FA are positively correlated in some key white-matter structures. ► A combination of MEG and FA may unveil physiological basis of brain's oscillations.