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An allocentric human odometer for perceiving distances on the ground plane.
Zhou, Liu; Wei, Wei; Ooi, Teng Leng; He, Zijiang J.
Afiliação
  • Zhou L; Department of Psychological and Brain Sciences, University of Louisville, Louisville, United States.
  • Wei W; Department of Psychological and Brain Sciences, University of Louisville, Louisville, United States.
  • Ooi TL; College of Optometry, The Ohio State University, Columbus, United States.
  • He ZJ; College of Optometry, The Ohio State University, Columbus, United States.
Elife ; 122024 Jul 18.
Article em En | MEDLINE | ID: mdl-39023517
ABSTRACT
We reliably judge locations of static objects when we walk despite the retinal images of these objects moving with every step we take. Here, we showed our brains solve this optical illusion by adopting an allocentric spatial reference frame. We measured perceived target location after the observer walked a short distance from the home base. Supporting the allocentric coding scheme, we found the intrinsic bias , which acts as a spatial reference frame for perceiving location of a dimly lit target in the dark, remained grounded at the home base rather than traveled along with the observer. The path-integration mechanism responsible for this can utilize both active and passive (vestibular) translational motion signals, but only along the horizontal direction. This asymmetric path-integration finding in human visual space perception is reminiscent of the asymmetric spatial memory finding in desert ants, pointing to nature's wondrous and logically simple design for terrestrial creatures.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Percepção de Distância Idioma: En Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Percepção de Distância Idioma: En Ano de publicação: 2024 Tipo de documento: Article