Table 2.

Mean difference between the indoor and outdoor protocols regarding total number of behavioral responses

Function sub-categories	Behavioral Responses	Mean	SD	Multiple correction p-value
Auditory	Reaction to a simple command	2.13	4.18	<0.001***
	Reaction to a semi-complex command	0.08	0.51	1.711
	Reaction to a complex command	0.00	0.00	4.74
	Head orients toward an auditory stimulus	0.47	2.42	0.35
	Eyes orient toward an auditory stimulus	0.56	2.42	<0.005**
	Eyes opening in response to an auditory stimulus	0.03	0.52	5.52
	Eyes opening on command	0.05	0.56	4.424
	Reaction when addressed by own name	0.34	1.28	<0.001***
Visual	Spontaneous exploration/fixation of an object	0.44	3.25	2.304
	Exploration/fixation of an object on command	0.48	3.28	1.792
	Visual pursuit of an object on command	0.16	0.90	0.296
	Spontaneous exploration/fixation of an individual (person)	0.67	4.27	1.333
	Exploration/fixation of an individual on command	0.74	2.44	<0.001***
	Spontaneous visual pursuit of a moving object or individual	1.01	5.94	0.594
	Pursuit of an individual on command	0.02	0.15	2.369
	Spontaneous designation of an object	0.00	0.00	4
Motor	Designation of an object on command	0.00	0.00	3
	Choice of an object on command	0.01	0.11	5.088
	Spontaneous seizing of an object	0.30	1.59	0.408
	Seizing of an object on command	0.29	1.68	0.992
	Spontaneous movement related to an object/task/individual	1.90	4.34	<0.001***
	Movement on command	2.38	6.10	<0.001***
	Imitation of a movement	0.20	1.44	2.052
	Eyes open on tactile stimulus	0.07	0.91	4.667
Oro-motor	Teeth grinding	0.01	0.08	3.135
	Yawning	0.26	1.27	0.324
	Sighing	0.37	2.77	2.225
	Smiling/laughing	0.13	0.83	1.333
	Frowning/gesturing	0.01	1.37	5.082
	Spontaneous swallowing	0.56	1.56	<0.001***
	Swallowing on command	0.02	0.61	5.184
Communication	Response following an established communication code	0.26	2.11	2.331
	Spontaneous audible vocalization	0.05	0.67	5.088
	Spontaneous audible production of a word	0.17	1.36	2.369
	Spontaneous audible production of a simple or complex sentence	0.04	2.05	5.082
	Audible vocalization on command	0.12	1.32	4.641
	Audible production of a word on command	0.23	2.68	4.624
	Audible production of a simple or complex sentence on command	0.11	2.90	5.256
	Non-audible diction	0.23	2.10	3
	Raising the voice	0.02	0.15	2.052
Attention	Attention on a stimulus held for 5 secs, at least 3&times during the whole activity	0.01	0.11	5.52
	Distracting stimulus self-inhibited	0.01	0.08	2
	Distracting stimulus (max 10 secs) and resuming the task without external stimulation	0.01	0.08	4.806
	Distracting stimulus (max 10 secs) and resuming the task with external stimulation	0.02	0.17	4.806

Results are presented as mean±standard deviation of the difference in the number of behavioral responses between outdoor and indoor conditions; ^**significant at p < 0.005; ^***significant at p < 0.001.