Table 1.

Results of the sensitivity and specificity for detection of the interaction times according to objects of interest and movement speeds.

	Box (Medicine Box)		Cabinet (Refrigerator)
	Positive	Negative	Positive	Negative
Positive (Real activations)	True positive n = 9	False positive n = 0	True positive n = 10	False positive n = 0
Negative (No activations)	False negative n = 0	True negative n = 10	False negative n = 0	True negative n = 9
Sensitivity/Specificity	100%	100%	100%	100%
Accuracy	100%		100%
	Cabinet door (Moderate to high)		Room door (Slow)
	Positive	Negative	Positive	Negative
Positive (Real activations)	True positive n = 6	False positive n = 0	True positive n = 9	False positive n = 0
Negative (No activations)	False negative n = 0	True negative n = 12	False negative n = 3	True negative n = 6
Sensitivity/Specificity	100%	100%	75%	100%
Accuracy	100%		83.3%