Perceived naturalness of human motion depends on internal consistency

33 undergraduate students who received course credit for their participation • 12 male observers, 6 presented with male walkers and 6 with female walkers • 21 female observers, 10 presented with male walkers and 11 with female walkers Naturalness was always highest when playback speed matches veridical speed • F (4, 128) = 83.136, p < .001 • Any inconsistency between recorded speed and playback speed was detected