Cognitive mediated eye movements during the SDMT reveal the challenges with processing speed faced by people with MS

Table 3 Hierarchal regression analysis of SDMT performance

Model	R	R²	ΔR²	Significance
1^a	0.283	0.080	0.063	p = 0.038
2^b	0.312	0.097	0.062	p = 0.331
3^c	0.322	0.103	0.049	p = 0.404
4^d	0.335	0.112	0.059	p = 0.361
5^e	0.768	0.590	0.543	p < 0.001
6^f	0.902	0.813	0.786	p < 0.001

^aGroup;
^bGroup*HADS-Depression;
^cGroup*HADS-Depression*Years of Education
^dGroup*HADS-Depression*Years of Education*Mean Saccade Distance in the key area
^eGroup*HADS-Depression*Years of Education*Mean Saccade Distance in the key area*Number of Visits to the Key per response;
^fGroup*HADS-Depression*Years of Education*Mean Saccade Distance in the key area * Number of Visits to the Key per response* Total number of fixations in test area

ISSN: 1471-2377