Phoenecia was a 67-year-old woman who had had a stroke six months earlier. As a result she was unable to use her left forearm, because she could not flex her left elbow. To solve this problem, a researcher set up an apparatus in which a counter indicated a number of points. Phoenecia earned points on the counter by flexing her left elbow 5 degrees. After the physiotherapy session, Phoenecia could exchange the points for money. As a result of this method, Phoenecia flexed her left elbow much more often than she had before. After 19 sessions, Phoenecia could flex her elbow as much as 70 degrees.
10 Phoenecia was a 67-year-old woman who had had a stroke six months earlier. As a result she was unable to use her left forearm, because she could not flex her left elbow. To solve this problem, a researcher attached electrodes to Phoenecia's right forearm and administered an electric shock. Phoenecia could turn off the shock by flexing her left elbow 5 degrees. As a result of this method, Phoenecia flexed her elbow much more often than she had before when the shock came on. After 19 sessions, Phoenecia could flex her elbow as much as 70 degrees.