Monday, 21 March 2016
Awareness as a Temporary Breakdown of the Brain’s Functional Networks
When you become consciously aware of something, what exactly is happening in your brain? Or stated differently, is there a geography of neuronal connections that is specific to becoming aware of a stimulus (for instance, a stimulus that is presented very briefly, so that you may or may not become aware of it)?
This is not a new question. It amounts to asking whether there are particular brain networks that are essential to awareness, or whether awareness instead emerges from the connectivity of large areas of our sensory and associative cortexes. This latter, global approach received support from a study published in March 2015 in the Proceedings of the National Academy of Sciences of the United States of America, entitled “Breakdown of the brain’s functional network modularity with awareness”, by Douglass Godwin and two collaborators. (more…)