Gambler's Regret Recorded By Electrodes on the Surface of the Brain (image)

Caption
Activity in the orbitofrontal cortex during a gambling experiment, as recorded by electrode meshes placed directly on the surface of the brain. On the left, the dots indicate the positions of the electrodes in each of the 10 subjects, distinguished by color. During normal activity (middle), the electrodes (black dots) show little activity in the OFC region that deals with regret. During the betting game (right), however, after learning the outcome of the bet, many electrodes record activity in the area where we feel regret (red).
Credit
Ignacio Saez and Ming Hsu, UC Berkeley
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