Coherence Coherence is a measure of how effectively two sites are able to link and unlink, to share information. Whether coherence is a good thing or a bad thing depends to some extent on what frequency we are talking about and what sites and what task. Slower frequencies, alpha and lower, are generally produced by rhythm generators in the middle of the brain, below the cortex. When the cortex, the thinking part of the brain, is working, we expect to […]