J

Vocalizations of young children that consist of several strings of consonants and vowels and may sound like speech, even though they are not true words. Real words may be mixed in with a child’s jargon. This is a developmental stage.

The ability to vary the extent of jaw depression in small amounts that are appropriate for biting foods of different thicknesses.

Active, internal jaw control with minimal up/down jaw movements especially significant in cup drinking; initially obtained by biting on the cup rim at about 13 to 15 months of age; gradually develops using active jaw musculature by 24 months of age.

The shared focus and attention of two individuals to the same object or stimulus.