President Obama has announced an ambitious plan to explore the mysteries of the human brain.
In a speech Tuesday, Obama said he will ask Congress for $100 million in 2014 to "better understand how we think and how we learn and how we remember." Other goals include finding new treatments for Alzheimer's disease, epilepsy and traumatic brain injury.
Four years ago, Marco Ferreira was riding his motorcycle down an isolated road in Los Angeles when he hit some grout and had an accident.
Though he was wearing a full helmet, leather pants and jacket, Ferreira suffered a traumatic brain injury.
When he woke from a six-week coma, his wife, Wendy Tucker, was there.
"You didn't walk, you didn't talk, and you couldn't feed yourself for seven months," she says during a visit with the 48-year-old Ferreira to StoryCorps in San Francisco. "Since then, it's just been getting better all the time."