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Psychology & Neuroscience 2014, 7 3

Autor: Frank H. Durgin

Fuente: http://www.redalyc.org/


Introducción



Psychology & Neuroscience ISSN: 1984-3054 landeira@puc-rio.br Pontifícia Universidade Católica do Rio de Janeiro Brasil Durgin, Frank H. Angular scale expansion theory and the misperception of egocentric distance in locomotor space Psychology & Neuroscience, vol.
7, núm.
3, 2014, pp.
253-260 Pontifícia Universidade Católica do Rio de Janeiro Rio de Janeiro, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=207032650003 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Psychology & Neuroscience, 2014, 7, 3, 253 - 260 DOI: 10.3922-j.psns.2014.032 Angular scale expansion theory and the misperception of egocentric distance in locomotor space Frank H.
Durgin Swarthmore College, Swarthmore, Pennsylvania, USA Abstract Perception is crucial for the control of action, but perception need not be scaled accurately to produce accurate actions.
This paper reviews evidence for an elegant new theory of locomotor space perception that is based on the dense coding of angular declination so that action control may be guided by richer feedback.
The theory accounts for why so much direct-estimation data suggests that egocentric distance is underestimated despite the fact that action measures have been interpreted as indicating accurate perception.
Actions are calibrated to the perceived scale of space and thus action measures are typically unable to distinguish systematic (e.g., linearly scaled) misperception from accurate perception.
Whereas subjective reports of the scaling of linear extent are difficult to evaluate in absolute terms, study of the scaling of perceived angles (which exist in a known scale, delimited by vertical and horizontal) provides new evidence regarding the perceptual scaling of locomotor space.
Keywords: Space ...





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