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It's not a stupid question in my opinion. However, it is perhaps naive. Brain function is very complex and how the different parts of the brain exactly relate to memory and function is still being worked out. We can monitor neural activity outside the brain by a number of methods. The most common one you might have come across is an electroencephalogram (EEG)...


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Color is a characteristic of visible electromagnetic spectrum, see the graph here. Electromagnetic means here that it has the same nature as radio-waves, X-rays, and gamma radiation, whereas visible refers to the region of spectrum - waves of frequencies ranging from TeraHertz to PetaHerz (i.e., from $10^{12}$ Hz to $10^{15}$ Hz). Specific colors essentially ...


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