Question

why might a psychologist use an electroencephalogram (eeg)?

to produce temporary lesions, so that the role of specific brain areas in behavior can be determined

to identify the specific brain structure that is activated when an individual is experiencing a discrete emotion

to explore the possibility of abnormal electrical activity within the brain

to produce three-dimensional images of electrochemical activity within the brain

Explanation:

• An electroencephalogram (EEG) measures the electrical activity of the brain. Producing temporary lesions is done by techniques like transcranial magnetic stimulation, not EEG. Identifying specific brain structures activated during emotions is more related to fMRI or PET scans. Producing 3D images of electrochemical activity is not what EEG does (EEG is about electrical activity, and 3D imaging of electrochemical activity is not its function). So the correct reason for a psychologist to use an EEG is to explore abnormal electrical activity in the brain.

Answer:

To explore the possibility of abnormal electrical activity within the brain