Table 1.

Number of controlling and non-controlling (spontaneous) fixations exceeding the dwell time threshold in the 500 ms and 1000 ms threshold conditions (collapsed over left-button and right-button conditions).

Sbj.	500 ms fixation threshold					1000 ms fixation threshold
	Non-controlling fixations	Controlling fixations				Non-controlling fixations	Controlling fixations
		All	Button	Ball	Free cell		All	Button	Ball	Free cell
1	114	444	150	148	146	9	369	124	123	122
2	208	364	120	128	116	15	271	101	96	74
3	144	408	138	139	131	13	325	109	108	108
4	200	549	184	184	181	24	446	150	148	148
5	162	435	147	148	140	4	338	113	113	112
6	124	527	176	180	171	5	428	145	142	141
7	123	442	151	153	138	7	358	122	121	115
8	194	517	171	175	171	9	378	125	127	126
Mean	158.6	460.8	154.6	156.9	149.3	10.8	364.1	123.6	122.3	118.3
Std.	38.0	64.1	21.2	20.4	22.7	6.5	56.0	16.9	17.1	22.6