The immediate reaction is the old brain, and the old brain functions in its own traditional, accepted, reactionary, animalistic sense.
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And contrary to the old dogma that the brain is genetically fixed in form and function, he says, the new understanding of "neuroplasticity" means the brain has the ability to change in significant ways throughout life, not only as a result of experiences but also by our own mental activity.
Professor Michael Kopelman, a neuropsychiatrist, told the Old Bailey that brain scans of Mr George had produced "severely abnormal" results.
And although imaging studies show that middle-aged people may use different brain regions to do the same old tasks, cognitive tests show that apart from brute speed, the brain's abilities are not diminished in middle age.
Memories are not held in their entirety in the brain like old movie clips, but are maintained as a kind of chemical residue of the original perception, which could be thought of as a hash value or remainder, but not a one-way algorithm at all.
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The 15-year-old's brain swelled dangerously days after the shooting, so doctors in Pakistan extracted a section of her skull about the size of a hand.
The music that springs from the brain of 21-year-old Beirut mastermind Zach Condon continues to defy categorization.
It is in this process that the brain jumbles around old ideas with new images to create new syntheses.
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Dr. CAMELIA KUHNEN (Assistant Professor of Finance, Kellogg School of Management): It's a very, very old part of the brain.
We prefer to avoid awkward scientific findings on the biology of violence that question our concepts of free will and punishment and harken back to the bad old days of eugenics and brain lobectomies.
The latter was a small brain tumor which resulted in the 73-year-old suffering minor complications, and there were fears he would have to quit his job just nine months after his appointment along with manager Steve Staunton.
Yet the mainstay drug, levadopa, which stimulates the brain to produce more dopamine, is 40 years old and provides only symptomatic relief.
This unfortunate 28 year old has a tumor of the brain stem that cannot be cured.
As patients age, genetic mutations or unknown environmental factors may boost the production of deformed proteins, or old brain cells simply may become less able to dispose of debris.
The 18-year-old suffered a severe brain injury and died two days later.
The 66-year-old had an incurable brain condition called cerebellar ataxia.
Mindfulness, an ancient practice that focuses your brain on the present, is as old as Buddha.
Fifteen-year-old Michael McIlveen died from brain injuries the day after he and two friends were attacked in 2006.
Laxmi Saman Muran's one-year-old son is suffering from tuberculosis of the brain.
"After a while it gets old and not so fulfilling to take the brain out when (an athlete) is dead, " said Bailes, a neurosurgeon and director of the Brain Injury Research Institute, which focuses on the study of traumatic brain injuries and their prevention.
The 55-year-old SNP politician was diagnosed with a brain tumour in March 2012 and underwent surgery.
Sanchez also referred to a chart showing the typical weight of a 7-year-old's brain: 1, 200 grams.
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One of the first children Nares helped was a 1-year-old boy with a brain tumor who required frequent chemotherapy treatments.
"When you irradiate a young child's brain, say less than 5 years old, you hit the pituitary gland, which controls growth hormone production, " he said.
What could be going on in the brain of someone who brazenly insults then allegedly strikes a 19-month old child?
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Some of things that would tell you, no matter how old the child is chronologically, to tell you what's going on in the brain.
The brain with these regions lighting up most comes from a 73-year-old former guard with dementia and depression who suffered 20 concussions with short losses of consciousness, but one with a 12-hour coma.
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Herberman demonstrated a model showing that the radiation from cell phones would penetrate far deeper into a 5-year-old's brain than an adult's.
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The 47-year-old, who has signed a three-year deal, replaces John Brain.
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