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Body tilt effect on the reproduction of orientations: studies on the visual oblique effect and subjective orientations.

Abstract : Body tilt effects on the visual reproduction of orientations and the Class 2 oblique effect (E. A. Essock, 1980) were examined. Body tilts indicate whether the oblique effect (i.e., lower performance in oblique orientations than in vertical-horizontal orientations) is defined in an egocentric or a gravitational reference frame. Results showed that the oblique effect observed in upright posture disappeared in tilted conditions, mainly due to a decrease in the precision of the vertical and horizontal settings. In tilted conditions, the subjective visual vertical proved to be the orientation reproduced the most precisely. Thus, the oblique effect seemed to be not purely gravitationally or egocentrically defined but, rather, to depend on a subjective gravitational reference frame tilted in the same direction as body tilts.
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https://hal.archives-ouvertes.fr/hal-00332253
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Submitted on : Monday, October 20, 2008 - 3:09:05 PM
Last modification on : Wednesday, October 27, 2021 - 2:02:59 PM

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  • HAL Id : hal-00332253, version 1
  • PUBMED : 12190248

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Marion Luyat, Edouard Gentaz. Body tilt effect on the reproduction of orientations: studies on the visual oblique effect and subjective orientations.. Journal of Experimental Psychology: Human Perception and Performance, American Psychological Association, 2002, 28 (4), pp.1002-11. ⟨hal-00332253⟩

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