The device that uses electrodes placed on the outside of the skull to record electrical activity within the brain,and is used in psychophysiological research,is called a(n)__________.

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CAT scans and fMRI scans are both imaging techniques used to view the brain's structure and activity, but they do not directly record electrical activity in the brain. Experience is not a device used in psychophysiological research. EEG (electroencephalogram) is a device that records electrical activity in the brain, and is commonly used in psychophysiological research to study brain waves and patterns of electrical activity in response to various stimuli.

The Device That Uses Electrodes Placed on the Outside of the Skull