/news/tags/brain-activity brain activity en-US Copyright Fri, 06 Sep 2019 02:57:41 GMT /news/health-science/2019-09-05/exploradio-origins-what-causes-spontaneous-activity-in-the-brain It seems our brains are never truly quiet. We dream when we are asleep, and in sensory deprivation experiments, participants start hallucinating within 15… Fri, 06 Sep 2019 02:57:41 GMT /news/health-science/2019-09-05/exploradio-origins-what-causes-spontaneous-activity-in-the-brain Kellen McGee