Table 2.

Interactions with plush and wheeled objects coded from videotaped trials

Behavior	Description
Extended touch	Placing a hand or foot on toy
Hold	Stationary support w/one or more limbs
Sit on	Seated on the toy or a part of the toy
Carry in hand	Moving w/toy in hand and off the ground
Carry in arm	Moving w/ toy in arm and off the ground
Carry in mouth	Moving w/toy in mouth and off the ground
Drag	Moving the toy along the ground behind the animal
Manipulate part	Moving, twisting, or turning a part
Turn entire toy	Shifting 3-D orientation of toy
Touch	Brief contact using hands or fingers
Sniff	Coming very close to the toy with the nose
Mouth	Brief oral contact – no biting or pulling
Destroy	Using mouth or hands to bite or tear toy
Jump away	Approach, then back away from toy with a jumping motion
Throw	Project into air with hands