Table 4.

Use time, duration, and frequency of interactions the sakis had with the audio enrichment device playing different sounds. Results reported in seconds (s) or interaction numbers.

	Frequency	Use Time (s)	Duration (s)
	No. per hour	Total Use per hour	Mean	Median	Std	Longest	Shortest
Silent	1.84	43.00	23.35	4.0	107.50	1052	1
Rain	2.37	14.79	6.24	4.0	11.40	116	1
Zen	2.61	21.14	8.11	3.0	16.07	141	1
Traffic	3.90	112.16	28.77	6.0	73.79	882	1
Electronic music	2.00	19.75	9.87	3.0	33.29	307	1