Which of the following milestones develops and differentiates early in a term newborn?
During early infancy, the motor system undergoes a variety of differentiations as visual, auditory, and tactile motor mechanisms. In the normal infant, these emerging motor differentiations follow a time schedule prescribed by the maturation of neural connections. The absence of these reflexes in the first few months of life and conversely their persistence beyond this time indicate a defect in cerebral development. Ref: Ropper A.H., Samuels M.A. (2009). Chapter 28. Normal Development and Detions in Development of the Nervous System. In A.H. Ropper, M.A. Samuels (Eds), Adams and Victor's Principles of Neurology, 9e.
Motor function
Social function
Cognition
Speech