The video is representative of the study procedure. However, the experiment was conducted in a different venue- a research lab cubicle. The cubicle did not have a window and was lit by an artificial light, to ensure that the light conditions were the same for all participants. All the furniture in the cubicle was white, black or grey. Also, the experimenter stood as far from the participant as the size of the cubicle allowed (approximately 1 meter).