Using magnetic resonance imaging on marathon runners, Ramos-Cabrer, Cabrera-Zubizarreta et al. report that the signal detected as a surrogate of myelin content is significantly reduced after exercise,...

How and to what extent oligodendrocytes (OLs) contribute to learning and cognition is not well understood. Here, the authors show that the performance of mice in working memory-dependent cognitive tas...

Disrupting oligodendrocytes formation in young adults causes a behavioral deficit in the complex wheel task within hours of testing. Reduced oligodendrogenesis also leads to task-independent alterat...