> As with anything, too much of a good thing can be detrimental: hyperactivity of the DMN has been linked with things like schizophrenia, anxiety, and ADHD. [..

> As with anything, too much of a good thing can be detrimental: hyperactivity of the DMN has been linked with things like schizophrenia, anxiety, and ADHD. [...] It's interesting that things like meditation (and apparently psychedelics) can quiet the DMN and bring clarity and happiness in people by doing so. The discovery of the default mode network (DMN) and the role it plays in our perception of reality are also mentioned in "How to Change Your Mind", a recent book by Michael Pollan [1], which examines in great depth all the issues you mention and more. I highly recommend it to those interested in the nature of consciousness. [1] https://www.amazon.com/Change-Your-Mind-Consciousness-Transcendence/dp/1594204225/ https://www.amazon.com/Change-Your-Mind-Consciousness-Transc...