New Haven, Conn—Ivan Petrovich Pavlov
never had it so good. He may have won the 1904 Nobel Prize in Physiology or
Medicine—but only after collecting buckets of bodily fluids from his
famously hungry dogs. A century later, his scientific progeny measure anticipation
with brain scans, not drool pans.
The feisty physiologist would likely be pleased. Researchers peeking
into the brain with sophisticated imaging are beginning to map the neurobiology
of craving. While discovering why alcohol and other drug habits can be so
hard to kick, they are also documenting the brain damage caused by alcoholism .
Vastag B. Brain Sabotages Sobriety, Right on Cue. JAMA. 2004;291(9):1053-1055. doi:10.1001/jama.291.9.1053