(no subject)

[watertank]

[Daniel] Weissman [of the University of Michigan, Ann Arbor] asked volunteers to spend a tedious hour in a functional-MRI brain scanner, identifying letters that flashed on a screen. At times, their reactions slowed, showing that attention was wavering. During these lapses, communication between regions related to self-control, vision and language processing died down. "Attention failed to grease the connections in the brain," says Weissman.

There must be a control structure in the brain that orchestrates high-level communications. It's quite possible that meditation is the type of activity that thoroughly engages this structure. We could hypothesize that brain is an association of distributed specialized and generic "thinkets", which are assembled and disassembled by the mind[?], depending on the task at hand.