Natural rewards, such as food and sex, as well as many drugs of abuse increase __________ levels in brain reward pathways

Chronic accessibility is to long-term exposure to a stimulus as temporary accessibility is to

a. awareness. b. positive mood. c. priming. d. heuristics.

A person who ingests a benzodiazepine antagonist would be expected to show ________ anxiety

Fill in the blank with the appropriate word.