Does blindness affect egocentric and allocentric frames of reference in small and large scale spaces?
Identifieur interne : 001285 ( Main/Merge ); précédent : 001284; suivant : 001286Does blindness affect egocentric and allocentric frames of reference in small and large scale spaces?
Auteurs : Tina Iachini [Italie] ; Gennaro Ruggiero [Italie] ; Francesco Ruotolo [Italie]Source :
- Behavioural brain research [ 1872-7549 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- psychology : Blindness.
- Adult, Body Image, Female, Humans, Male, Middle Aged, Space Perception, Spatial Processing, Touch Perception, Young Adult.
Abstract
There is evidence that early deprivation of vision prompts the use of body-based, egocentric spatial representations in congenitally blind individuals, whereas previous visual experience favors the use of object-based, allocentric representations (e.g. Pasqualotto A, Spiller MJ, Jansari AS, Proulx MJ. Visual experience facilitates allocentric spatial representation. Behav Brain Res 2013;236:175-79). Here we investigated whether the influence of the visual status on the capacity to represent egocentric and allocentric spatial relations is mediated by the scale of space explored: large-scale (where a haptic+locomotor exploration is required) and small-scale space (where haptic exploration is needed). Our results showed that congenitally blind people had more difficulty in representing spatial information allocentrically with respect to late blind and sighted individuals, but this difficulty was stronger with large-scale than small-scale space. Instead, egocentric performance was better than the allocentric one for all groups, particularly in the small scale condition. These results suggest that visual experience is necessary to develop accurate allocentric representations especially of large-scale spaces. This is probably due to its capacity to convey a large amount of spatial information simultaneously and to its role on the setting up of multisensory brain areas underlying spatial cognition. In the absence of any kind of visual experience, egocentric spatial representations are favored, especially in small-scale space, when the body offers a stable anchor point.
DOI: 10.1016/j.bbr.2014.07.032
PubMed: 25078290
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Electronic address: santa.iachini@unina2.it.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples</wicri:regionArea><wicri:noRegion>Second University of Naples</wicri:noRegion></affiliation></author><author><name sortKey="Ruggiero, Gennaro" sort="Ruggiero, Gennaro" uniqKey="Ruggiero G" first="Gennaro" last="Ruggiero">Gennaro Ruggiero</name><affiliation wicri:level="1"><nlm:affiliation>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples</wicri:regionArea><wicri:noRegion>Second University of Naples</wicri:noRegion></affiliation></author><author><name sortKey="Ruotolo, Francesco" sort="Ruotolo, Francesco" uniqKey="Ruotolo F" first="Francesco" last="Ruotolo">Francesco Ruotolo</name><affiliation wicri:level="1"><nlm:affiliation>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples</wicri:regionArea><wicri:noRegion>Second University of Naples</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2014">2014</date><idno type="RBID">pubmed:25078290</idno><idno type="pmid">25078290</idno><idno type="doi">10.1016/j.bbr.2014.07.032</idno><idno type="wicri:Area/PubMed/Corpus">000587</idno><idno type="wicri:Area/PubMed/Curation">000587</idno><idno type="wicri:Area/PubMed/Checkpoint">000677</idno><idno type="wicri:Area/Ncbi/Merge">003173</idno><idno type="wicri:Area/Ncbi/Curation">003173</idno><idno type="wicri:Area/Ncbi/Checkpoint">003173</idno><idno type="wicri:Area/Main/Merge">001285</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Does blindness affect egocentric and allocentric frames of reference in small and large scale spaces?</title><author><name sortKey="Iachini, Tina" sort="Iachini, Tina" uniqKey="Iachini T" first="Tina" last="Iachini">Tina Iachini</name><affiliation wicri:level="1"><nlm:affiliation>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples, Italy. Electronic address: santa.iachini@unina2.it.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples</wicri:regionArea><wicri:noRegion>Second University of Naples</wicri:noRegion></affiliation></author><author><name sortKey="Ruggiero, Gennaro" sort="Ruggiero, Gennaro" uniqKey="Ruggiero G" first="Gennaro" last="Ruggiero">Gennaro Ruggiero</name><affiliation wicri:level="1"><nlm:affiliation>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples</wicri:regionArea><wicri:noRegion>Second University of Naples</wicri:noRegion></affiliation></author><author><name sortKey="Ruotolo, Francesco" sort="Ruotolo, Francesco" uniqKey="Ruotolo F" first="Francesco" last="Ruotolo">Francesco Ruotolo</name><affiliation wicri:level="1"><nlm:affiliation>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples, Italy.</nlm:affiliation><country xml:lang="fr">Italie</country><wicri:regionArea>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples</wicri:regionArea><wicri:noRegion>Second University of Naples</wicri:noRegion></affiliation></author></analytic><series><title level="j">Behavioural brain research</title><idno type="eISSN">1872-7549</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Blindness (psychology)</term><term>Body Image</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Space Perception</term><term>Spatial Processing</term><term>Touch Perception</term><term>Young Adult</term></keywords><keywords scheme="MESH" qualifier="psychology" xml:lang="en"><term>Blindness</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Body Image</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Space Perception</term><term>Spatial Processing</term><term>Touch Perception</term><term>Young Adult</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">There is evidence that early deprivation of vision prompts the use of body-based, egocentric spatial representations in congenitally blind individuals, whereas previous visual experience favors the use of object-based, allocentric representations (e.g. Pasqualotto A, Spiller MJ, Jansari AS, Proulx MJ. Visual experience facilitates allocentric spatial representation. Behav Brain Res 2013;236:175-79). Here we investigated whether the influence of the visual status on the capacity to represent egocentric and allocentric spatial relations is mediated by the scale of space explored: large-scale (where a haptic+locomotor exploration is required) and small-scale space (where haptic exploration is needed). Our results showed that congenitally blind people had more difficulty in representing spatial information allocentrically with respect to late blind and sighted individuals, but this difficulty was stronger with large-scale than small-scale space. Instead, egocentric performance was better than the allocentric one for all groups, particularly in the small scale condition. These results suggest that visual experience is necessary to develop accurate allocentric representations especially of large-scale spaces. This is probably due to its capacity to convey a large amount of spatial information simultaneously and to its role on the setting up of multisensory brain areas underlying spatial cognition. In the absence of any kind of visual experience, egocentric spatial representations are favored, especially in small-scale space, when the body offers a stable anchor point.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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