neurobiology

The Long Memory of the First Cigarette

May 9, 2011

Every new experience leaves a mark on our brain, from a fleeting burst of electricity and neurotransmitters to a longer-lasting architectural shift. When we meet a new person, learn a new fact, or visit a new place, connections in our brains [Read more]

One Foot in Front of the Other

April 14, 2011

There are few biological functions that we take for granted more than gait, the intricate symphony of motion that happens almost automatically when we walk or run. Gait is programmed deep into the nervous system of animals, an activity so robust [Read more]

Where Categories Meet Decisions

February 9, 2011

One of the most important functions of the brain is to make decisions. Even the simplest animals need to make choices based on sensory information: is that thing over there food or a predator, and should I eat it, or run from it? Making the right [Read more]

The Mouse With Sleeper Toxins

September 20, 2010

Studying a disease using an animal model is not as simple as merely replicating it. For instance, a variety of techniques have been used in animals to simulate the neurological disorder multiple sclerosis, where the protective myelin sheath that [Read more]