Bruno N, Dell'Anna A, Jacomuzzi A, 2006, "Ames’s window in proprioception" Perception 35(1) 25 – 30
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Ames’s window in proprioception
Nicola Bruno, Alessandro Dell'Anna, Alessandra Jacomuzzi
Received 7 July 2004, in revised form 31 May 2005; published online 16 November 2005
Abstract. When holding a small-scale model of Ames’s trapezoidal window with the arms fully extended, several observers experience a striking proprioceptive distortion (eg one hand appears farther from the other, or one arm appears longer than the other). However, data from a matching experiment suggest that the proprioceptive misalignment of the hands is, in fact, rather less than the apparent slant of the window when this is not held. This finding argues against a ‘visual-capture’ account, supports an explanation in terms of bimodal integrative processes, and underscores the importance of supplementing phenomenological observations with objective measures.
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