The nature

when you go to the desert with professor David Strayer don't be surprised if he sticks electrodes to your head. A cognitive psychologist at the University of Utah who studies the mind's ability to think clearly, Strayer understands the relentless distractions that pummel our modern brains.But as an avid backpacker, he thinks he knows the antidote.On the third day of camping trip in the canyons near Bluff, utah strayer,sporting a rumpled T-shirt and a slight sunburn ,is mixing  an enormous iron pot of chicken while explaining .