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CHANGES IN PLASTICITY OR ALBERT & THE RAT

CHANGES IN PLASTICITY OR ALBERT & THE RAT CHANGES IN PLASTICITY By the time a baby is three or four months of age, its behavior provides clues to its having reached new milestones in brain development. At that age, individual infants differ widely in their reaction to events and in their patterns of brain activity…

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NEURAL DARWINISM [ NEWBORN ]

NEURAL DARWINISM Some scientists argue that as the brain incorporates new experiences and makes new connections among neurons, it expresses a form of evolution through the competition of its various neural networks. Nobel Prize-winning neuroscientist Gerald Edelman suggests that the brain’s many networks vie against each other in “neural Darwinism.” While genes determine how the…

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NEWBORN NEURONS / ESTABLISHING NETWORKS

NEWBORN NEURONS As a baby emerges from the womb, brain development expands to include processing responses to the baby’s new experiences sights, sounds, smells, actions, sensations, and emotions. Networks of neurons, primed to receive new stimuli,compete for survival. It’s a random battle at first, but soon becomes more organized as environmental stimuli strengthen some connections…

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NEW BORN BRAIN – SUPPORT & SURVIVAL

NEW BORN BRAIN – SUPPORT & SURVIVAL Migrating neurons are helped along by glial cells. They support and nourish the neurons on their journeys. Some help regulate the neurons’ metabolism, and others coat the nerve cells’ axons with myelin, a fatty substance that provides electrical insulation and thus controls the speed of communication along neural…