Neuroscience,,, , through functional MRI’s,,,,,,, , is mapping disorders, depression, ADHD etc

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“In an analysis of sixteen such studies involving a total of 184 people with ADHD and 186 normal controls, researchers at the New York University Child Study Center found that several regions of the prefrontal cortex important for selective attention and response inhibition were underactive in the ADHD group.

In particular, the inferior prefrontal cortex, the brain’s impulse-inhibiting center, seemed to be sitting this one out:

While it lit up with activity in healthy controls, in kids and adults with ADHD it was sidelined. (As we will see in chapter 11, these are the brain regions that are strengthened by the forms of meditation that improve several aspects of attention.)

Another signature of attention is phase-locking, in which an external stimulus becomes synchronized with ongoing brain oscillations detected by electrodes on the scalp. Here, too, when this process goes awry, the result is ADHD:

When scientists at the University of Toronto recently measured neural synchrony in nine adults with ADHD and ten healthy controls, they found much poorer synchrony in the ADHD group.

Again, one of the key neural correlates of selective attention is dysfunctional in ADHD.”
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