Gravitational and Retinal Reference Frames Shape Spatial Memory

Raffaele Tucciarelli

doi:10.1037/xge0001441

Gravitational and Retinal Reference Frames Shape Spatial Memory

2023-12-01

2

OA

AI

R

Raffaele Tucciarelli

E

Elisa Raffaella Ferrè

DOI：10.1037/xge0001441

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When reproducing the remembered location of dots within a circle, judgments are biased toward the center of imaginary quadrants formed by imaginary vertical and horizontal axes. This effect may result from the heightened precision in the visual system for these orientations in a retinotopic reference frame, or alternately on the internal representation of gravity. We dissociated reference frames defined by the retina and by gravity by having participants locate dots from memory in a circle when their head was upright (aligned with gravity) versus tilted 30 & DEG; to the left (misaligned with gravity). We mapped the structure of spatial prototypes in a data-driven way using a novel imaging procedure. We calculated the rotation of the prototype maps which maximized the similarity between postures, letting us quantify the contribution of each reference frame. Spatial categories are determined by a combination of reference frames, with clear contributions from both gravitational and retinal factors.

Keyword:

spatial perception

reference frames

spatial memory

Gravitational and Retinal Reference Frames Shape Spatial Memory

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