VERTICAL NEGLECT - BEHAVIORAL AND ELECTROPHYSIOLOGICAL DATA

Both behavioral and electrophysiological methods were used to assess a ltitudinal neglect. In the first experiment, 100 patients with neglect completed Albert's Barrage test. Most omissions were present in the l ower left quadrant. In 16 patients, visual evoked potentials to stimul i in the four quadrants were separately recorded (Exp. 2). Latencies i n the lower left quadrant were longer than those in the other quadrant s. A third experiment provided electrophysiological normative data fro m 13 young normal subjects. Overall, the results showed that both the horizontal and vertical dimensions of space are affected in neglect pa tients.