____________represents a profound decline or deterioration in mental functioning characterized by significant impairment of memory, thinking processes, and judgment and by specific cognitive deficits

__________ gestures, which are hand movements that speakers make while they talk, tend to be lined up at the clause level.

a. Canonical b. Clarifying c. Clausal d. Cospeech

Your text has a section on infant directed speech (IDS). Which of the following is the best summary?

a. IDS uses habituation to help infants with morpheme perception and morpheme segregation b. mothers tend to be better at IDS than fathers and this contributes to infants' "mommy preference" c. IDS uses emotional tone and pitch patterns and helps aid language development d. efforts to teach IDS to single mothers in low income communities have succeeded in helping children develop better categorization skills