Monday 12 November 2012

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Your view on synaptic pruning is a little off.  It doesn't "cut off" parts of the brain you don't use (you actually use all of your brain); instead pruning reorganizes connections to make synaptic transmission more efficient.  When neurons develop, they form all sorts of connections with other surrounding neurons.  Synaptic pruning cuts off these unused superfluous connections so the neural signal can take the fastest route to wherever it needs to go.  Neuroplasticity is a pretty broad concept that ranges from the molecular level all the way up to the systems level but you got the basics right: your brain has the ability to adapt (structurally and functionally) to the environment.  It is most evident during critical periods of development but still continues into adulthood.  

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