Theories of Brain Mapping
October 8, 2013 | Terry Sharrer
Last month, Tagline (September 10th issue) carried a piece about the “Big Brain” mapping project now going on in Germany, and a possible next step in mapping brain activity. Almost since the days of phrenology, locating brain activity has been based on a theory that adding a though process triggered activation. But recently researchers at Case Western Reserve University and the University of California-Davis propose that activation engages when one of two opposing neural networks first are suppressed. It is a subtraction rather than an addition process that governs brain activity. MORE
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