Motor neurons carry messages from special receptors in the skin, from muscles, and from sense organs to the spinal cord

Compared to psychotherapy, antidepressant drugs have what disadvantage?

a. They produce effects such as dry mouth and difficulty urinating. b. They produce their benefits more slowly c. They are helpful only to patients with mild to moderate depression. d. They are more expensive.

In one well-known social psychological study, research participants were asked to make very easy perceptual judgments ("Is Line A longer than Line B?"). The catch was that they were asked to do this while sitting around a table with people who continually gave incorrect responses—people who appeared to be other regular research participants. In reality, however, the other people at the table

were not real participants at all; they were actually actors who were working for the experimenter and just posing as participants. The question in this research was whether or not the real research participant would conform to the group's opinion (even though the group's opinion was obviously wrong) or whether the real participant would stick to the right answer. In psychological jargon, the "actors" in this study would be referred to as ____. a. confederates b. participant players c. activators d. role testers