You've heard of a pacemaker for the heart, but what about for the head? We'll go under the knife with a Cardington, Ohio farmer who’s getting electrodes implanted in his brain to alleviate the debilitating physical effects of a rare neurological disorder. br br To see the full segment, visit a class="link" rel="nofollow" href=" after original broadcast. Tune in to WIRED SCIENCE on your local PBS station (check local listings).