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Developmental Tasks
Infants - Dev Psych PS 323
| Term | Definition |
|---|---|
| head lag/sag | 1 m |
| head held erect, steady | 4m |
| little head lag when pulled up to sitting | 4m |
| lifts head briefly when prone | 1m |
| holds head up 45 degrees when prone | 2m |
| lifts head and chest when prone | 4m |
| little head lag when pulled up to sitting | 4m |
| hold hand in fist | 1m |
| early crawling movementss | 1 |
| can fixate on someone's face in direct line of vision | 1m |
| gains 5-7 oz per week (0-6 months) | 1 |
| sleeps approximately 16hrs/day | 1m |
| reflexes are predominant activity | 1m |
| closing of posterior fontanel | 2m |
| able to turn from side to back | 2m |
| eyes begin to follow moving objects past midline | 2m |
| social smile | 2m |
| voice coos | 2m |
| diminished tonic neck and moro reflexes | 2m |
| brings objects to mouth at will | 3m |
| turns head in the direction of sound | 3m |
| binocular vision | 3m |
| smiles in mother's presence; laughs audibly | 3m |
| appearance of thumb apposition | 4m |
| absent tonic neck, moro, and extrusion reflexes | 4m |
| drooling | 4m |
| evidence of pleasure in social situations | 4m |
| brings hands together at midline | 4m |
| plays with hands | 4m |
| turns from back to side | 4m |
| follows objects 180 degrees | 4m |
| rolls from stomach to back | 5m |
| birth weight usually doubled | 6m |
| gains 3-5 oz per week (6-12m) | 6m |
| teething begins-lower central incisors | 6m |
| peek-a-boo | 6m |
| bears weight | 6m |
| smiles at mirror image | 6m |
| can turn from back to stomach | 6m |
| early ability to recognize strangers | 6m |
| imitate familiar sounds | 6m |
| grasps objects at will (palmar) - holds bottle | 6m |
| transfers objects from hand to hand | 7m |
| sits for short periods using hands for support | 7m |
| beginning separation and stranger anxiety | 7m |
| bangs cube on table | 7m |
| responds to name | 8m |
| sits alone steady | 8m |
| elevates self to sitting position | 9m |
| can recover to sitting when leaning forward | 9m |
| crude pincer grasp | 9m |
| rudimentary imitative expression | 9m |
| responds to parental anger and "no" | 9m |
| waves bye-bye | 9m |
| expressions like "dada" may be heard | 9m |
| no head lag when pulled to sitting | 9m |
| searches for objects | 9m |
| crawls well | 10m |
| pulls self to standing position c support | 10m |
| clasps hands | 10m |
| vocalizes one or two words (mamma, dada) | 10m |
| erect standing posture c support | 11m |
| birth wt tripled | 12m |
| birth length increased | 12m |
Created by:
spham
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