Brent is taking part in an experiment in the cognitive neuroscience lab on campus. silently, he reads rapid sequences of words flashed on a computer screen. simultaneously, the electrical activity of his brain is recorded through skull electrodes. the brain-scanning technique used in this study is:

The type of test that Brent is undergoing is an electroencephalogram test, or known as an EEG. Basically the test measures the electrical activity, or brain impulses, in the brain given off by brain cells. This is accomplished by using electrodes attached to the scalp that feed the data to the EEG recorder.