Table 1.

Behavioral Observation Scale

Behavior	Scale	Operational Definition
Apprehension/Arousal Shaking cage when Exp. enters area Quick motions in cage	0	Not shown even on handling
	1	Shown on handling
	2	Shown on opening cage
	3	Shown on touching cage door
	4	Shown on standing before cage
	5	Shown on looking into monkey’s eyes
Spontaneous Motor Activity	0	Sitting with head in tucked position
	1	Sitting without large movement
	2	Sitting with movements of head and arms
	3	Sitting and walking in cage
	4	Walking continuously in cage
Attention	0	Does not follow treat
	1	Follows treat for 1 second
	2	Follows treat for 2 seconds
	3	Follows treat for 3 seconds
	4	Follows treat for 4 seconds
Gross Motor Function	0	No movement
	1	Unable to mount perch
	2	Nearly unable to stay on perch
	3	Slowed movement
	4	Slightly slowed movement
	5	No slowing of movement
Tremor	0	None
	1	Visible in fingers when moving
	2	Visible in fingers and limbs when moving
	3	Visible markedly in fingers and limbs when moving
Salivation/ Pupils	0	None / Small Pupils (Needlepoint)
	1	Moistening of lips / Normal Pupils
	2	Recognizable but no dribbling/ Large Pupils (Dime)
	3	Dribbling from mouth
Stereotypy	0	Absent
	1	Present
Sedation	0	No Sedation alert to environement
	1	Slightly suppressed, little movement, quieter than usual
	2	Moderately sedated: sitting, not reaching for pellets Responds to noise in the room.
	3	Heavily sedated; lying on floor of cage, no response to Exp.