Does blindness affect egocentric and allocentric frames of reference in small and large scale spaces?
Identifieur interne : 000018 ( PascalFrancis/Corpus ); précédent : 000017; suivant : 000019Does blindness affect egocentric and allocentric frames of reference in small and large scale spaces?
Auteurs : Tina Iachini ; Gennaro Ruggiero ; Francesco RuotoloSource :
- Behavioural brain research [ 0166-4328 ] ; 2014.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
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.
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NO : | PASCAL 14-0268885 INIST |
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ET : | Does blindness affect egocentric and allocentric frames of reference in small and large scale spaces? |
AU : | IACHINI (Tina); RUGGIERO (Gennaro); RUOTOLO (Francesco) |
AF : | Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples/Italie (1 aut., 2 aut., 3 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Behavioural brain research; ISSN 0166-4328; Coden BBREDI; Irlande; Da. 2014; Vol. 273; Pp. 73-81; Bibl. 67 ref. |
LA : | Anglais |
EA : | 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. |
CC : | 002B09K; 002A25 |
FD : | Représentation allocentrique; Cadre de référence; Psychométrie; Sensibilité tactile; Perception; Cognition spatiale; Cécité |
FG : | Pathologie de l'oeil; Trouble de la vision |
ED : | Allocentric representation; Frame of reference; Psychometrics; Tactile sensitivity; Perception; Spatial cognition; Blindness |
EG : | Eye disease; Vision disorder |
SD : | Representación allocéntrica; Marco de referencia; Psicometría; Sensibilidad tactil; Percepción; Cognición espacial; Ceguera |
LO : | INIST-18271.354000504506840100 |
ID : | 14-0268885 |
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Pascal:14-0268885Le document en format XML
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<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>
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<ET>Does blindness affect egocentric and allocentric frames of reference in small and large scale spaces?</ET>
<AU>IACHINI (Tina); RUGGIERO (Gennaro); RUOTOLO (Francesco)</AU>
<AF>Laboratory of Cognitive Science and Immersive Virtual Reality, Department of Psychology, Second University of Naples/Italie (1 aut., 2 aut., 3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
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