The second most common form of intellectual developmental disorder is ______

While reading a medical article you come across the category of minor tranquilizers. The writer then gives the term "benzodiazepine" as an example of the chemical group of drugs. What type of drugs is being described?

a. antimanic b. antianxiety c. antipsychotic d. antidepressants

The theory that suggests that slowing reaction time is attributable to changes in all parts of the nervous system, including the brain, is called the ______________ hypothesis.

Fill in the blank(s) with the appropriate word(s).