Which of the following is a difference between transcranial direct current stimulation (tDCS) and repetitive transcranial magnetic stimulation (rTMS), which are used for treating psychological disorders?
A. tDCS involves deep brain stimulation by implanting electrodes into the brain, while rTMS works by disrupting circuits in subcortical brain areas that underlies compulsive behavior.
B. tDCS stimulates subcortical brain structures, while rTMS stimulates the outer layer of the cortex only.
C. tDCS requires equipment that must be used in a medical setting, while rTMS equipment is portable and can be used when people are moving.
D. tDCS is used to treat mild clinical depression, while rTMS is used to treat mild to moderate clinical depression.
Answer: B
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