Table 4.

Dwell times (in milliseconds) computed for the first three postobstacle movements

	Unimanual						Bimanual
	Obstacle-absent			Obstacle-present			Obstacle-absent			Obstacle-present
Movement	1	2	3	1	2	3	1	2	3	1	2	3
Controls	364 (31)	378 (30)	390 (33)	235 (27)	327 (30)	365 (34)	339 (24)	397 (29)	350 (28)	218 (26)	318 (25)	313 (28)
Patients	277 (28)	289 (29)	288 (28)	167 (16)	237 (23)	266 (28)	298 (31)	306 (25)	280 (24)	193 (28)	274 (26)	259 (23)

Dwell times were defined as the time interval during which the dowel was within a 0.5-cm distance above the target. Numbers in parenthesis indicate SEM.