Monitor, a Vibrotactile Aid for Environmental Perception: A Field Evaluation by Four People with Severe Hearing and Vision Impairment

Table 4

The number of training days and average training hours/day (digits in the parenthesis) for each P at two-training period.

	P1	P2	P3	P4
Five weeks training with MO	109 (9.6)	33 (4.0)	25 (5.6)	57 (8.9)
Five weeks training with MD	33 (11.1)	21 (7.0)	32 (2.7)	35 (10.7)