The stable-order principle states that number names must be counted in the same order

Research indicates that people who live in unsophisticated, non-technologically-based cultures are incapable of attaining the formal operational stage of thinking, as described by Piaget

Indicate whether the statement is true or false.

A person is administered a placebo "pain-relieving" skin cream just before receiving a painful electric shock. Imaging studies suggest that the placebo analgesic effect is due to

a. decreased activity within the prefrontal cortex and PAG. b. decreased activity within the somatosensory cortex. c. increased activity within the prefrontal cortex and PAG. d. blockade of opiate receptors within the spinal cord. e. the release of serotonin within the brain stem.