Physical and motor-skill markers: - Closure of posterior fontanelle (soft spot at the back of the head)
- Doll's eye reflex, dance reflex, grasp reflex, and crawling reflex disappearing
- Less head lag
- When on stomach, able to lift head almost 45 degrees
- Decreased flexion of extremities while on stomach
Sensory and cognitive markers: - Head turns from side to side with sound stimulation at the level of the ear
- Beginning to visually fix on 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 auditory stimuli outside those of the home
- Take the baby for rides in the car
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