Guest: Victor D. Chase.

Around the world there are countless people with neurological disorders that disrupt their ability to move or communicate. Injury or disease can create a gap between a functioning brain and the parts of the body meant to receive its signals. Today on Focus, we'll look at the effort to develop medical devices to bridge that gap with guest Victor D. Chase, author of Shattered Nerves.

Guest: David Linden.

At first glance, the human brain would seem to be one of the most beautifully engineered things in nature. In fact, says neuroscientist and Johns Hopkins professor David Linden, the brain is a cobbled-together mess—but this flawed design has led to some features of human experience that help us define life itself. Today on Focus, the author of The Accidental Mind takes us on a grand tour of the brain.

Guest: Gene Robinson.

The honey bee not only plays a crucial role in our economy and food supply, but has also become an important research tool for scientists studying disease, development, and social behavior. Today on Focus, University of Illinois biologist Gene Robinson joins the show to talk about the effort to decode the DNA of the honey bee and the light its study could cast on human health and behavior as well.