Video_S4-Onetube-Hidden

Video S4: One tube condition—Hidden baiting. In the experimental demonstration, E1 lifts up the single tube and tapes it with her hand to show it is empty, and then places it on the ground with the openings perpendicular to the monkey’s perspective. She then picks up a fake fruit with her right hand (hand counterbalanced across monkeys) and moved it down; the monkey’s view of the baiting event is then blocked by the occluder. She then picks up the occluder and walks away so that the monkey can approach; in the real study she moved behind the camera person (E2). In the example response clip, the monkey approaches the center location and looks under the tube. Note that orientation of video switches: in the demonstration it shows the monkey’s perspective, whereas in the example test clip E2 is behind E1 while she does the demonstration.