Developmental Milestones
Rolling back to front
What motor skills do infants develop at 3 months?
Signal needs like hunger or pain.
What is the significance of crying in newborns?
A morpheme that can stand alone (e.g., "dog").
What is a free morpheme?
When a caregiver and child focus on the same object or event.
What is joint attention?
Vowel-like and brief consonant-like sounds (e.g., /k/, /g/).
What sounds are produced during cooing?
12 months
At what age do infants typically say their first word?
Contingent responding
What is a key component of preverbal communication involving caregiver responses?
A morpheme that must be attached to a free morpheme (e.g., "-ing").
What is a bound morpheme?
7 months
At what age does a child begin creating joint attention by pointing?
6 months
At what age does reduplicated babbling typically begin?
6 months
When do infants begin sitting without support?
Recognition or greeting (e.g., "Hi! I see you!").
What does an infant's smile communicate in early development?
The prefix "un-" in the word "unhappy."
What is an example of a derivational morpheme?
The child names objects or events
What is the key feature of joint attention at 12 months?
Babbling with mixed syllables, like "madagaba."
What is variegated babbling?
Crawling
What developmental milestone is reached at 9 months?
Echolalia
What is the name of the behavior where infants imitate sounds immediately?
A variation of a morpheme that does not change the meaning (e.g., /s/ in "books").
What is an allomorph?
Phase 1 (4-6 weeks)
What phase of joint attention involves the caregiver calling attention to an object by saying, "Look!"?
Reflexive cries are unlearned, while differentiated cries signal specific needs.
What is the difference between reflexive cries and differentiated cries?
Passing objects from hand to hand
What fine motor skill develops at 8 months?
Unique productions used by children, like "e-e-e" for "me.
What are protowords?
Three. ("un," "happy," "est").
How many morphemes are in the word "unhappiest"?
It is necessary for perspective-taking and is often lacking in children with autism.
Why is joint attention considered crucial for children with autism?
Sounds produced at the front of the mouth (e.g., /m/, /p/, /b/).
What first consonant sounds are typically used in reduplicated babbling?