Table 1. Projected visual angles of approaching object in Experiments 1-3.

	Collision Event					Non-collision Event
	Time(sec)					Time(sec)
Path	0	2.0	3.25	4.5	5.75	0	2.0	3.25	4.5	5.75
Linear	0.59	0.82	1.09	1.59	2.98	0.59	0.82-0.85	1.07-1.10	1.51-1.64	2.71-2.87
110	0.59	0.84	1.10	1.59	2.94	0.59	0.83-0.85	1.06-1.13	1.48-1.69	2.47-3.29
225	0.59	0.82	1.09	1.60	3.04	0.59	0.82-0.83	1.07-1.09	1.53-1.60	2.61-2.93
255	0.59	0.82	1.09	1.60	3.07	0.59	0.83-0.83	1.08-1.09	1.54-1.59	2.68-2.87
315	0.59	0.83	1.09	1.59	2.91	0.59	0.82-0.82	1.08-1.08	1.56-1.58	2.77-2.88
410	0.59	0.83	1.09	1.59	2.96	059	0.81-0.84	1.05-1.11	1.50-1.63	2.58-2.98
550	0.59	0.85	1.14	1.70	3.39	0.59	0.81-0.84	1.07-1.10	1.55-1.59	2.74-2.82

Note:Zero sec time refers to first frame of the display.

110, 225, 255, 315, 410, and 550 are radii of circular path.