The majority of "huffers" (users of inhalants) are above age 25

The research on infants' speech perception suggests that

a. infants can appreciate phoneme similarities shortly after birth, but they cannot appreciate phoneme differences until they are almost 12 months old. b. infants have such limited skills that psychologists cannot design appropriate research on speech perception in infants younger than 6 months of age. c. infants can perceive the differences between a variety of similar phonemes; this ability is present either at birth or during the first weeks of life. d. the perception of phonemes does not change after the age of 6 months.

What relatively rare sleep disorder involves people acting out the movements and events of their dreams?

A) Insomnia B) Narcolepsy C) REM behavior disorder D) Sleep apnea