development of first year of life

Presymbolic stage

• 2 to 18 months

Exploratory stages

• 2 months to 10 months

• In presymbolic stage

• Mouthing, banging, examining toys Often

• Often solitary play but willl do joint routines with caregiver

Object manipulation ( nonfunctional) play stage

• (5-12) months

• Tries to manipulate the properties of toys but not very specific

Birth to 4 months

• receptive communication

  • Startles/alrets to loud sounds

  • Prefers primary caregiver voice

  • Showed by smiling

• Vocalization and speech sound production

  • Differentiated crying & cooing ( open tract vowel sounds)

  • Emergence of consonant plus vowel

  • List of sounds

• Social communicative behaviors ( in later development this is called language use or pragmatics)

  • Social smile

  • Single focus/orientation on partner or object

  • Protects by turning head → first social communication

• Gestures

  • Uncoordinated reaching for objects

  • Concern signal: absence of startle to sound/parent concern

4 to 6 months

Receptive communication

• responds to no sometimes ( responding to voice)

• Discriminates between happy and angry voices and faces

• Searches for speaker

Vocalization and sound production

• babbling, pitch changes, raspberries, laughter

Social communication behaviors

• discriminates between happy and angry voices/faces Searches

• Searches for the speaker

• Protests by pushing objects away

• Requests by looking at desired object coordinated with reaching and vocalization ( more coordinated)

Gestures

• more consistent reaching for toys reaches for toys ( not yet considered communicative)

• Reaches hands up to be picked up

Concern signal : absence of startle to sound/ parent

Six to ten months

Receptive communication

• turns to name

• Responds to request to wave bye-bye ( supported with cues

• Seems to recognize some names of common objects

• Anticipates social routines ?want up? Come up

Speech sound production

• canonical babbling: reduplicated CV segments with adult - like timing and intonation ( predictive of language)

• Variegated babbling

Social communicative behaviors

• dual focus on objects and adults

• Joins in turn-taking games ( eg peek a boo)

• By 10 months initiates turn-taking games

• Protests,requests, seeks attention

Gestures

• signs

• By 10 months points to objects and touches adult hand to request an object

Concern signal :

• absence or limited variety in babbling

10 to 12 months

Receptive communication/language

• gives objects on request/understands simple questions

• Identifies two body parts

Speech sound production

• Jargon ( variegated babbling)

• First words emerge by 12 months produced with early phonological processes

Concern signal

• Absence or limited amount and variety in babbling, no use of gestures or eye gaze to communicate/ parent concern

Social communicative behaviors/ pragmatics= language use

• protests,requests and comments

• Uses tragic eye gaze

• Demands joint attention by eye gaze,gesture, sounds, and eventually words

• Intentional communicator - looks different w populations

  • Child gets your attention, vocalizes or gestures, waits for you to do something, child persists if you do not respond

10 to 12 month assessment/ purpose

Assessment: should now include what the child does ( the form) and why the child did it

Forms/production

• pushing away, pointing, action gesture, kicking, hands up, shows object, gives objects,vocalizes, verbalizes

Functions/purpose

• behavior regulation: protest, requests action

• Social interaction: seeks attention, request social games,

• Joint attention

11 months

• intentionally & joint attention

12 months

• establishing joint attention

• Dyadic and then Triassic eye gaze, pointing, showing, vocalizing, and verbalizing can be used to establish two types of joint attention

  • Response to joint attention ( RJA)

  • Initiation of joint attention (IJA)