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Pruning starts near the time of birth & is completed at end of adolescents. At birth, the brain consists of ~86 billion neurons. The infant brain will grow 5x in size by adulthood. 2 factors contribute to this: the growth of synaptic connections between neurons, & the myelination of nerve fibers. A decrease in synapses is seen after adolescence (synaptic pruning), & ~50% do not survive until adulthood. Pruning is influenced by environmental factors and is widely thought to represent…

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from ScienceDaily

Origin of synaptic pruning process linked to learning, autism and schizophrenia identified: Findings may suggest new approaches to treatments

Origin of synaptic pruning process linked to learning, autism and schizophrenia identified: Findings may suggest new approaches to treatments -- ScienceDaily

The Cerebellum and Cognitive Function: 25 Years of Insight from Anatomy and Neuroimaging: Neuron

Synaptic Pruning Inside Neuron Synapse Neurology #synaptic #pruning #inside #neuron #synapse #neurotransmitter #wordsandunwords #psyche #learning #geek #humor #funny Here's a throw pillow featuring a neuron / synapse along with the saying "Synaptic Pruning Inside" for anyone who thinks and learns!

If a teen is doing music, sports or academics, those are the connections that will be hard wired. If they¼re lying on the couch or playing video games or MTV, those are the cells and connections that are going to survive.

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from TED Blog

New TED Book: Brain Power

Thought provoking proposition. Another great book from TED.

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A very interesting article - photo credit: (Left) Excess synapses in the brain of a child with autism (Right) Properly pruned synapses of a developmentally typical child. Credit: Guomei Tang/Mark S. Sonders/Columbia University Medical Center

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Cells in your brain acting as little micro-gardeners? It's true! A recent article from Fast Company explains “synaptic pruning” as being when the microglial cells in your brain and how they act as gardeners and prune away synaptic connections so there’s room for new ones to form. And the key to proper brain maintenance? Sleep and mindfulness. Read on!