Mich. woman, 115, is now world's oldest person, and "is very sharp.

The front door flew open as a reporter approached a brick ranch house in Inkster and a voice called out, "C'mon in — I've got Time magazine on the phone."

The speaker stood Thursday night over a placid figure dressed in a pale pink nightgown named Jeralean Talley, a bright-eyed elderly woman in spectacles who — despite her profound hearing loss — was fully aware, relatives said, that she'd just been declared by gerontology experts to be the oldest person in the world.

"It's truly incredible because Ms. Talley is very aware of what's going on. Her mental state is very sharp," said Michael Kinloch, 56, of Canton, a GM engineer and longtime family friend of Talley's through their church.