Neurology: A Molecule for Memory?

Though people complain about their faulty memories as often as about the weather, memory is just about the most durable phenomenon in human nature. Once imprinted in the brain, specific memories withstand the most devastating attacks, such as electric shock and mind-deadening drugs. This is so great a mystery that there was a packed house in Berkeley last week as a dozen different breeds of scientists convened at the University of California for a two-day symposium on "Behavior, Brain and Biochemistry."

The big questions were whether learning, which is one manifestation of memory, can be speeded up with the...