AUTHOR=Imaizumi Kazuo , Ruthazer Edward S. , MacLean Jason N. , Lee Charles C. TITLE=Editorial: Spontaneous Activity in Sensory Systems JOURNAL=Frontiers in Neural Circuits VOLUME=12 YEAR=2018 URL=https://www.frontiersin.org/journals/neural-circuits/articles/10.3389/fncir.2018.00027 DOI=10.3389/fncir.2018.00027 ISSN=1662-5110