People cannot locate the projection of an object on the surface of a mirror |
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| Authors: | Rebecca Lawson |
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| Affiliation: | 1. CNRS, UMR 5304, Institut des Sciences Cognitives - Marc Jeannerod, 67 Bd Pinel, 69675 Bron, France;2. Université Claude Bernard Lyon 1, France;3. Department of Psychology, Harvard University, William James Hall, 33 Kirkland Street, Cambridge, MA 02138, USA;4. Department of Psychology, UC Berkeley, Tolman Hall, Berkeley, CA 94720-1650, USA;5. Department of Philosophy, New York University, 5 Washington Place, New York, NY 10003, USA;6. Department of Psychology, University of Bath, Claverton Down, Bath, United Kingdom;1. Department of Educational Psychology, University of Alberta, Edmonton, Alberta T6G 2G5, Canada;2. Department of Psychology, Kyungnam University, Gyeongsangnam-do, Republic of Korea;3. School of Psychology and Cognitive Sciences, East China Normal University, Shanghai 200050, China;4. Department of Special Needs Education, University of Oslo, 0315 Oslo, Norway;5. Department of Special Education and Counselling, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong;6. Department of Preschool Education, Shanghai Normal University, Shanghai 200234, China |
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| Abstract: | People cannot veridically perceive reflections of objects as projections on the surface of mirrors. People tried to locate an object’s projection on a flat mirror. The observer stood at the opposite end of a long mirror to the experimenter. They were told to remember the location of the projection of the experimenter’s face. The experimenter then moved and the observer stuck a card onto the mirror at this remembered location. The actual location was midway along the mirror between the experimenter and the observer. However, cards were placed much too close to the experimenter. Repeated testing with feedback reduced, but did not eliminate, errors. Our perception of mirrors is dominated by what appears to be visible through the mirror, not what is projected onto its surface. In contrast, if the experimenter stuck a card onto the mirror then removed it, observers remembered this physically-specified location accurately. |
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