Shining a light on memory

Using a flash of light, scientists have inactivated and then reactivated a memory in genetically engineered rats. The study, supported by the National Institutes of Health, is the first cause-and-effect evidence that strengthened connections between neurons are the stuff of memory.
Source: NINDS Press Releases and News: National Institute of Neurological Disorders and Stroke - Category: Neurology Source Type: news