Table 3.

Average disparities of fixation points compared with the Donders-Listing positions

Subject Session	Trials (n)	Vertical |δz|, °	Horizontal |δy|, °	DL Vertical |δz|, °	DL Horizontal |δya|, °	DL Horizontal |δyb|, °	t-Test or KW
M1
48*	5 of 11	0.05 (0.04)	0.03 (0.02)	0.3 (0.05)	0.1 (0.02)	0.3 (0.05)	P < 10−3
49	25	0.1 (0.1)	0.05 (0.05)	0.2 (0.2)	0.1 (0.05)	0.3 (0.1)	P < 10−3
68	7	0.4 (0.2)	0.2 (0.1)	0.7 (0.3)	0.3 (0.15)	0.4 (0.2)	P < 0.05
70	26	1.0 (0.2)	0.6 (0.1)	1.3 (0.3)	0.6 (0.20)	0.8 (0.2)	P < 10−3
M2
41*	26 of 47	0.3 (0.1)	0.2 (0.08)	0.5 (0.1)	0.4 (0.1)	0.3 (0.1)	P < 10−3
43	27	0.4 (0.2)	0.2 (0.1)	0.7 (0.2)	0.4 (0.1)	0.3 (0.1)	P < 10−3
44*	36 of 42	1.0 (0.3)	0.9 (0.3)	1.1 (0.3)	1.2 (0.3)	0.9 (0.3)	P < 0.05
45	25	0.1 (0.08)	0.07 (0.06)	0.3 (0.1)	0.4 (0.1)	0.1 (0.07)	P < 10−3
47	17	0.08 (0.07)	0.05 (0.04)	0.9 (0.2)	0.7 (0.2)	0.5 (0.1)	P < 10−3
48	25	0.2 (0.1)	0.10 (0.07)	0.6 (0.2)	0.5 (0.1)	0.3 (0.09)	P < 10−3
52	73	0.4 (0.2)	0.3 (0.1)	0.9 (0.3)	0.9 (0.2)	0.6 (0.2)	P < 10−3
M2**
57	14	0.1 (0.06)	0.08 (0.04)	0.25 (0.14)	0.1 (0.1)	0.3 (0.1)	P < 5·10−3
59*	6 of 10	0.1 (0.08)	0.07 (0.05)	0.35 (0.13)	0.15 (0.08)	0.3 (0.1)	P < 5·10−3
M3
42	19	0.09 (0.05)	0.07 (0.04)	0.2 (0.1)	0.2 (0.1)	0.2 (0.2)	P < 0.01

Values are means (SD). Note that vertical disparities are disparities between the positions of the right and left eye whereas horizontal disparities are disparities relative to the Helmholtz point. For comparisons absolute values are shown because signs typically changed within a session from trial to trial. KW, Kruskal-Wallis.

^*In these sessions, only part of the fixations fulfilled the fusion criteria as indicated.

^**Trials with near target 10° above horizontal plane of regard. DL, Donders-Listing positions.