In 4-6 month old infants, facial expressions of joy,  positive vocalizations, and gazing at the caregiver are  known as

Newborns sleep 

________ is a general wariness and distress when an infant’s main caregiver is not there.

Newborn states of arousal include all of the following  except ________________.

The specialized form of speech that adults use with very young infants is known as

Repetitive actions that center on an infant’s own body are referred to as:

________ uses short sentences that contain mostly high- content words and omit smaller words.

Infants can understand more words than what they are able to say.  Comprehension of the spoken word is called:

At birth, infants show a preference for ________ flavors.

The last major organ to mature during the final 2 months of the fetal period is/are the: