Washington: A new brain scan shows what it looks like when a person runs out of patience or loses self-control.It would explain why someone who works very hard not to take a second helping of lasagna at dinner winds up taking two pieces of cake at desert. The study could also modify previous thinking that considered self-control to be like a muscle.University of Iowa neuroscientist William Hedgcock confirms previous studies that show self-control is a finite commodity that is depleted by use. Once the pool has dried up, we`re less likely to keep our cool the next time we`re faced with a situation that requires self-control.But Hedgcock`s study is the first to actually show it happening in the brain, using Functional Magnetic Resonance Imaging (FMRI) images that scan people as they perform self-control tasks, the Journal of Consumer Psychology reports.
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