Can anyone see how the brain functions counting backwards from 100?
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ANSWERS: 2
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Yes. Electrodes can be planted on various points on a person's skull to record variations in brain waves and other electrical activities as the person counts backward from 100.
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Using fMRI (functional magnetic resonance imaging) researchers can see which parts of the brain are most active during certain activities, such as mathematical calculation. fMRI shows patterns of blood flow to the neurons working the hardest. Usually instead of simply counting backwards (100, 99, 98...) they have the subjects count backwards by subtracting 7s (100, 93, 86...) which requires a great deal more thinking in the process.
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