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News Link • Health and Physical Fitness

A Harvard Neuroscience Scheme To Change Decisions In Your Brain

• Rose Pastore via PopSci.com
 

This week at the British Neuroscience Association, Harvard scientist Gabriel Kreiman described a rather diabolical-sounding experiment: He wants to reverse someone's decision to push a button before the person is even aware they were going to press it.

Kreiman has already demonstrated he can predict decisions before volunteers become conscious of making them. Back in 2011, he used brain imaging to measure the activity of individual neurons in the brains of 12 people with epilepsy (they already had electrodes implanted to identify the source of seizures.) The volunteers were told they could press a button whenever they liked and to remember the position of a clock's second hand at the moment they decided to act.

Five seconds before the volunteers reported they had decided to press the button, Kreiman noticed electrical activity in the area of the brain involved in initiating movement, called the supplementary motor area, as well as in the brain region that controls motivation and attention, called the anterior cingulate cortex.

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