Table 1.

Video Library

Social Content	Affective Content	Video Description
Nonsocial	Positive	Popcorn popping from popcorn maker into bin Granola pouring into pan
	Negative	Capture net waving in air Room cleaning squeegee moving along floor
	Neutral	Leaves blowing in the wind Dandelion blowing in the wind Feather in grass Cage gravel Sky with clouds
Social Non-Engaging	Positive	Male and female engaging in consortship behavior Young animals playing
	Negative	Monkeys engaging in aggression Monkeys engaging in subordination
	Neutral	Young animal orally exploring cage Female sleeping Young animal chewing on plastic Male orally exploring cage
Social Engaging	Positive	Male “lipsmacking” Female “presenting rump” with species typical sexual swelling
	Negative	Male “threatening” Female “threatening”
	Neutral	Male looking at camera Female looking at camera