Table I. Summary of results from legibility experiments.

Table I presents the results of the first experiment (virtual Braille, columns nominal and textured, see Section 4) and the second experiment (conventional Braille, column control, see Section 5). It has been split in three tables to improve readability.

Table 1. Number of trials.

subject	nominal	textured	control
CN	80	160	80
RB	0	80	80
ML	80	0	80
AB	40	80	80
MS	80	80	80
average	56	80	80

Table 2. Legibility (%).

subject	nominal	textured	control
CN	97.5	88.1	100.0
RB		95.0	100.0
ML	98.8		100.0
AB	45.0	86.3	100.0
MS	71.3	66.3	100.0
average	78.1	83.9	100.0

Table 3. Average trial duration (s).

subject	nominal	textured	control
CN	4.8 ± 2.7	4.6 ± 2.2	3.4 ± 0.7
RB		10.8 ± 7.0	7.4 ± 1.4
ML	4.6 ± 3.2		2.3 ± 0.6
AB	18.6 ± 12.2	10.5 ± 6.3	2.4 ± 0.7
MS	8.0 ± 2.7	9.1 ± 3.0	5.8 ± 1.7
average	9.0	8.8	4.3