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Intelligence - nature or nurture? Researchers find a gene for intelligence and also that a bigger brain matters, yet other recent articles show how motivation affects learning.

Cerebral blood flow as a possible marker for concussion outcomes

Cerebral blood flow recovery in the brain could be a biomarker of outcomes in patients following concussion, a new imaging study suggests. Most of the 3.8 million sports-related traumatic brain injuries (TBIs) that occur annually are concussions. Developing methods to diagnose the presence and severity of concussions is imperative, the authors say.
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