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Title

Within reach but not so reachable: Obstacles matter in visual perception of distances

Authors
Guinet, Eric
Osiurak, François
Palluel-Germain, Richard
Published in Psychonomic bulletin & review. 2013, vol. 20, no. 3, p. 462-467
Abstract A large number of studies have shown that effort influences the visual perception of reaching distance. These studies have mainly focused on the effects of reach-relevant properties of the body and of the objects that people intend to reach. However, any influence of the reach-relevant properties of the surrounding environment remains still speculative. We investigated this topic in terms of the role of obstacle width in perceiving distances. Participants had to estimate the straight-line distance to a cylinder located just behind a transparent barrier of varying width. The results showed that participants perceived the straight-line distance to the cylinder as being longer when they intended to grasp the cylinder by reaching around a wide transparent barrier rather than by reaching around narrower ones. Interestingly, this effect might be due to the anticipated effort involved in reaching. Together, our results show that reach-relevant properties of the surrounding environment influence perceived distances, thereby supporting an embodied view of the visual perception of space.
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PMID: 23242800
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MORGADO, Nicolas et al. Within reach but not so reachable: Obstacles matter in visual perception of distances. In: Psychonomic bulletin & review, 2013, vol. 20, n° 3, p. 462-467. https://archive-ouverte.unige.ch/unige:28932

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Deposited on : 2013-07-19

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