In what way is transcranial magnetic stimulation (TMS) different than other techniques researchers use to study brain activity, such as PET scans, fMRIs, and MEG?
A) TMS requires the use of radioactive materials.
B) Other techniques take much longer to acquire data compared to TMS.
C) TMS records the activity of glial cells as well as neurons.
D) TMS is used to actually change the activity in the brain by either stimulating or disrupting activity.
Answer: D
Rationale: Transcranial magnetic stimulation (TMS), a procedure in which researchers send an electromagnetic pulse to a targeted region of the brain to either stimulate or disrupt activity. This differs from PET scans, fMRI, and MEG, which are passive techniques, and do not alter brain functioning.
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