Thursday, 23 May, 2013

Can pigeons learn an abstract mathematical rule? Apparently, according to a new study, which asked pigeons to place, five blue dots and eight green squares, in ascending order. Now we know birds and primates can both do this, but where and why did this ability originate?

In just a moment, our brains can go from calm, deliberate and focused, to alert, agitated and aroused. New neural networks get activated during the transition. Now a study of the fight-or flight-response fingers a common hormone in triggering the brainwide changes.

Charges that NFL “deliberately and fraudulently concealed” … link between head impacts and brain damage. What is the science of traumatic brain injury?

Financial traders make more money when their blood has more testosterone. Is this another arena where the male hormone leads to success, or could success raise the hormone level?