Table 2. Detailed description of the actions in each of the 'nonsocial interaction’ condition for each order displayed, each clip within a block (two clips of 6 s) and each repetition (two repetitions) within the run.

	Nonsocial interaction
Order 1	Exploring a camera tripod	Eating (mostly chewing)	Eating banana peel	Scratching and exploring its environment
	Eating lettuce while lying on a nest bed	Eating on a tree branch	Eating on a tree branch	Eating while sitting on a table and looking at the camera
Order 2	Eating banana and other fruits, frontal face view	Eating while sitting on a table and looking at the camera	Exploring and looking at its hand	Eating fruits profile view
	Frontal face view before eating sweet potatoes	Eating bananas and visually exploring	Looking backward, chasing insects	Looking backward before eating sweet potatoes
Order 3	Eating lettuce while lying on in a nest bed	Eating on a tree branch	Eating on a tree branch	Eating while sitting on a table and looking at the camera
	Frontal face view before eating sweet potatoes	Eating bananas and visually exploring	Looking backward, chasing insects	Looking backward before eating sweet potatoes