Physical and motor-skill markers: - Closure of posterior fontanelle (soft spot at the back of the head)
- Several newborn reflexes, such as the dance reflex (baby appears to dance or step when placed upright on solid surface)and grasp reflex (grasping a finger), disappear
- Less head lag
- When on stomach, able to lift head almost 45 degrees
- Less flexing of the arms and legs while on stomach
Sensory and cognitive markers: - Head turns from side to side with sound at the level of the ear
- Beginning to look at close objects
- Crying becomes differentiated
- Coos
- Vocal response to familiar voices
- Smiles
Play recommendations: - Toys and objects should be bright colors
- The room should be bright with pictures and mirrors
- Expose the baby to sounds outside those of the home
- Take the baby for rides in the car
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