Bright light inhibits our feelings of sleepiness by influencing the production of:

There is evidence and concern that which common treatment for depression can trigger suicidal thoughts and behaviors in adolescents?

A) Amphetamines B) Valium C) SSRIs D) all of the above

As an indicator of lying, lack of eye contact is

A) ?a fairly reliable index of deceptive intent. B) ?not a reliable index of deceptive intent. C) ?the best indicator of deceptive intent. D) ?more reliable in persons of lower status.