White noise improves learning by modulating activity in dopaminergic midbrain regions and right superior temporal sulcus – PubMed

In neural systems, information processing can be facilitated by adding an optimal level of white noise. Although this phenomenon, the so-called stochastic resonance, has traditionally been linked with perception, recent evidence indicates that white noise may also exert positive effects on cognitive …
— Read on pubmed.ncbi.nlm.nih.gov/24345178/