Table 1.

Means (standard error of means) of pointing errors and response times.

	JRD	ROT	REF	INVIS
Absolute pointing error (°)	25.56 (4.97)	38.91 (2.64)	6.00 (0.75)	5.27 (0.66)
Response time (s)	15.84 (1.63)	16.47 (1.81)	11.13 (1.08)	12.02 (0.93)