A new wave of narcotics addiction, notable for the number of younger abusers involved, has followed the more recent introduction of another opium derivative called

Lucille suffers from depression, and goes to a physician's office. There a wire coil is placed on the left side of her forehead and a field that disrupts brain activity is created. Lucille is being treated with:

a) transcranial magnetic stimulation (TMS). b) electro-convulsive therapy (ECT). c) functional magnetic resonance imaging (fMRI). d) single-photo emission computed tomography (SPECT).

_____ theory is most helpful when trying to explain gender differences, such as in mating behavior, that is similar across different cultures

Fill in the blank with correct word