The Developing Brain Significant changes occur all through development but especially during the first 2 years Development tends to be from back to from.

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Presentation transcript:

The Developing Brain Significant changes occur all through development but especially during the first 2 years Development tends to be from back to from and from lower to upper

Brain Development: The Brainstem

The Limbic System

The Cerebral Cortex

What Develops: Major areas of the brain Neuronal Growth and Myelinization

Brain Maturation Beginning around 2 months there is a significant increase in dendritic branching This increase continues all through development in different parts of the brain

CNS Development There is an overproduction of dendrites and axons which results in in subsequent elimination or “pruning”

Human Brain at Birth 14 Years Old 6 Years Old 9

CNS Development There is an overproduction of dendrites and axons which results in in subsequent elimination or “pruning” Why is there an excess? What connections get pruned or eliminated?

CNS Development In order for pruning to occur, child only has to be in a relatively normal environment Small differences among normal environments will not affect pruning For example, parents reading books These more subtle environmental differences affect the chemistry of the brain not its basic structure

Brain Maturation