Does looking between the legs elongate or shorten perceived distance - comparing two tasks O N Toskovic |
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Laboratory for experimental psychology, Faculty of Philosophy, University of Belgrade, Serbia
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| Higashiyama used a verbal judgement task and showed that distances observed between the legs are perceived as shorter than distances viewed from an upright position. Using a distance matching task, we showed that distances observed between the legs are perceived as longer, but we didn’t control for retinal image orientation. The aim of the present research was to compare the verbal judgement and the distance matching tasks, with constant retinal image orientation. The experiment was performed in a dark room, without retinal image orientation change. The first task for the 14 participants was to equalize the distances of two luminous stimuli, one of which was placed in front of them, and the other one behind, with three distances, 1m, 3m and 5m. The second task was to give verbal judgements for stimuli distances, one observed while standing, and the other while looking between the legs. Results for the first task showed significant effects of body position, distance of standard, and their interaction. Results for the second task showed significant effects of body position, distance of standard, but no significant interaction. In both tasks distances viewed between the legs were perceived as larger than distances viewed from an upright position. |
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