The role of visual similarity and memory in body model distortions

Acta Psychologica
Aurelie SaultonStephan de la Rosa

Abstract

Several studies have shown that the perception of one's own hand size is distorted in proprioceptive localization tasks. It has been suggested that those distortions mirror somatosensory anisotropies. Recent research suggests that non-corporeal items also show some spatial distortions. In order to investigate the psychological processes underlying the localization task, we investigated the influences of visual similarity and memory on distortions observed on corporeal and non-corporeal items. In experiment 1, participants indicated the location of landmarks on: their own hand, a rubber hand (rated as most similar to the real hand), and a rake (rated as least similar to the real hand). Results show no significant differences between rake and rubber hand distortions but both items were significantly less distorted than the hand. Experiments 2 and 3 explored the role of memory in spatial distance judgments of the hand, the rake and the rubber hand. Spatial representations of items measured in experiments 2 and 3 were also distorted but showed the tendency to be smaller than in localization tasks. While memory and visual similarity seem to contribute to explain qualitative similarities in distortions between the hand and non-corpor...Continue Reading

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Citations

Oct 26, 2018·Experimental Brain Research·Lara A CoelhoClaudia L R Gonzalez
Mar 24, 2020·PloS One·Sarah D'Amour, Laurence R Harris
Aug 31, 2017·Scientific Reports·Matthew R Longo
Mar 23, 2017·Frontiers in Human Neuroscience·Matthew R Longo
Apr 5, 2018·Psychological Research·Lara A Coelho, Claudia L R Gonzalez
Dec 6, 2016·Frontiers in Human Neuroscience·Matthew R Longo, Rosa Morcom
May 16, 2017·Psychological Research·Lara A Coelho, Claudia Lr Gonzalez
Aug 23, 2018·Experimental Brain Research·Matthew R Longo
Jan 19, 2021·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Giuliana SorrentinoMichela Bassolino
May 25, 2021·Experimental Brain Research·Laura MoraGianna Cocchini
Jul 10, 2021·Attention, Perception & Psychophysics·Kelda Manser-SmithMatthew R Longo

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