Ron is always concerned about his lucky numbers. Even while looking at dates on a calendar or selecting a time to do a particular activity, he is always preoccupied with lucky and unlucky numbers. His symptoms suggest that he might be suffering from a(n)

The language acquisition device is best described as a/an

A) cognitive structure or scheme acquired during Piaget's sensorimotor period of cognitive development. B) learned cognitive structure or scheme for distinguishing phonemes from morphemes. C) mental representation of speech sounds found in one's native language. D) hypothetical mechanism in the brain that helps children detect and learn the rules of language.

All but which of the following describe the reticular formation?

a. contains nerve pathways that connect the hindbrain with the forebrain b. regulates attention c. regulates arousal d. controls heartbeat e. screens irrelevant visual and auditory information