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The Corpus Callosum and Early Childhood Development

How development of the corpus callosum affects early childhood development.
by

Shariyah Gordon

on 18 January 2013

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Transcript of The Corpus Callosum and Early Childhood Development

Works Cited
1. Corpus Callosum
http://en.wikipedia.org/wiki/Corpus_callosum
2. Lateralization of Brain Function
http://en.wikipedia.org/wiki/Right_hemisphere
3. Corpus Callosum Disorders
http://www.nodcc.org/index.php?option=com_content&task=view&id=12&Itemid=27
4. Cognition and Behavior: Corpus Callosum Smaller in Autism
http://sfari.org/news-and-opinion/in-brief/2012/cognition-and-behavior-corpus-callosum-smaller-in-autism
Video Clips:
ACC

Split Brain Patient

Image used
http://www.umm.edu/imagepages/8753.htm Period of time spent refining cognitive processes
The corpus callosum responsible for this refinement
Children are better capable of coordinating body movements
Also coordinates info from both sides of their brain Early childhood Damage to the corpus callosum can also be helpful
Split Brain Surgery / Callostomy: dissection of the corpus callosum
Typically relieves symptoms of epilepsy
Has some cognitive defects It’s not all bad... Under developed corpus callosa are correlated with Autism in children
Autistic children typically have thinner corpus callosa
Children born without corpus callosa suffer from a disorder known as agenesis of the corpus callosum (ACC)
Difficulty with social skills
Difficulty with problem solving
Delays in reading walking and talking
Very clumsy
Little control over body When development goes wrong… Left and right hemisphere do not operate alone rather they share responsibility
The corpus callosum transfers information between the two
Makes for more efficient sensory input processing We’re not all one-sided! Lateralization: The process in which the left and right sides of the body control different functions
The left and right hemispheres of the brain although they look similar actually control different processes
The right hemisphere processes more creative info
The left hemisphere processes more logical info Lateralization Crucial in early childhood development
Brain acts as an efficient machine and designates responsibility
Would not be capable of designating responsibility without myelination and a process known as lateralization Why does myelination matter? Responsible for growth of the Corpus Callosum
Nerve fibers are a collection of axons
Process of synaptic transmission
Oligodendrocytes create myelin
Propagation and Insulation Myelination A long and thick band of nerve fibers, known as a tract
Connects the left and right hemispheres of the brain
Also known as the colossal commisure
Not all people are born with one
Strengthens and develops in order to refine our cognitive processes The Corpus Callosum Shariyah Gordon Corpus Callosum and Early Childhood Development Corpus callosum responsible for cross communication between left and right hemisphere
Myelination is the process that allows the corpus callosum to grow
Lateralization is the process in which opposite sides of the brain control opposite sides of the body
Not all children have fully developed corpus callosa or have them period
Linked to Autism and a range of different disorders
Split Brain Surgery a way to relieve epilepsy in patients Summary
Full transcript