Watch this for a 4 month old comparison of typical and atypical motor movements. Early detection and early intervention are best. View these eight clips showing typical and atypical development for babies at four months old. Watch and compare the development of the two children, then compare to your baby. The eight positions in the video are what healthcare professionals use to determine if early intervention is needed. Watch this and have notes on your child’s development ready prior to your next well-baby visit.