Numbers in the blind's eye

Elena Salillas, Alessia Graná, Radouane El-Yagoubi, Carlo Semenza

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Background: Although lacking visual experience with numerosities, recent evidence shows that the blind perform similarly to sighted persons on numerical comparison or parity judgement tasks. In particular, on tasks presented in the auditory modality, the blind surprisingly show the same effect that appears in sighted persons, demonstrating that numbers are represented through a spatial code, i.e. the Spatial-Numerical Association of Response Codes (SNARC) effect. But, if this is the case, how is this numerical spatial representation processed in the brain of the blind? Principal Findings: Here we report that, although blind and sighted people have similarly organized numerical representations, the attentional shifts generated by numbers have different electrophysiological correlates (sensorial N100 in the sighted and cognitive P300 in the blind). Conclusions: These results highlight possible differences in the use of spatial representations acquired through modalities other than vision in the blind population.

Original languageEnglish
Article numbere6357
JournalPLoS One
Volume4
Issue number7
DOIs
Publication statusPublished - Jul 23 2009

Fingerprint

Brain
eyes
Parity
Population
brain

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Salillas, E., Graná, A., El-Yagoubi, R., & Semenza, C. (2009). Numbers in the blind's eye. PLoS One, 4(7), [e6357]. https://doi.org/10.1371/journal.pone.0006357

Numbers in the blind's eye. / Salillas, Elena; Graná, Alessia; El-Yagoubi, Radouane; Semenza, Carlo.

In: PLoS One, Vol. 4, No. 7, e6357, 23.07.2009.

Research output: Contribution to journalArticle

Salillas, E, Graná, A, El-Yagoubi, R & Semenza, C 2009, 'Numbers in the blind's eye', PLoS One, vol. 4, no. 7, e6357. https://doi.org/10.1371/journal.pone.0006357
Salillas E, Graná A, El-Yagoubi R, Semenza C. Numbers in the blind's eye. PLoS One. 2009 Jul 23;4(7). e6357. https://doi.org/10.1371/journal.pone.0006357
Salillas, Elena ; Graná, Alessia ; El-Yagoubi, Radouane ; Semenza, Carlo. / Numbers in the blind's eye. In: PLoS One. 2009 ; Vol. 4, No. 7.
@article{fb3a88bce1c949958a1550a160e1e48e,
title = "Numbers in the blind's eye",
abstract = "Background: Although lacking visual experience with numerosities, recent evidence shows that the blind perform similarly to sighted persons on numerical comparison or parity judgement tasks. In particular, on tasks presented in the auditory modality, the blind surprisingly show the same effect that appears in sighted persons, demonstrating that numbers are represented through a spatial code, i.e. the Spatial-Numerical Association of Response Codes (SNARC) effect. But, if this is the case, how is this numerical spatial representation processed in the brain of the blind? Principal Findings: Here we report that, although blind and sighted people have similarly organized numerical representations, the attentional shifts generated by numbers have different electrophysiological correlates (sensorial N100 in the sighted and cognitive P300 in the blind). Conclusions: These results highlight possible differences in the use of spatial representations acquired through modalities other than vision in the blind population.",
author = "Elena Salillas and Alessia Gran{\'a} and Radouane El-Yagoubi and Carlo Semenza",
year = "2009",
month = "7",
day = "23",
doi = "10.1371/journal.pone.0006357",
language = "English",
volume = "4",
journal = "PLoS One",
issn = "1932-6203",
publisher = "Public Library of Science",
number = "7",

}

TY - JOUR

T1 - Numbers in the blind's eye

AU - Salillas, Elena

AU - Graná, Alessia

AU - El-Yagoubi, Radouane

AU - Semenza, Carlo

PY - 2009/7/23

Y1 - 2009/7/23

N2 - Background: Although lacking visual experience with numerosities, recent evidence shows that the blind perform similarly to sighted persons on numerical comparison or parity judgement tasks. In particular, on tasks presented in the auditory modality, the blind surprisingly show the same effect that appears in sighted persons, demonstrating that numbers are represented through a spatial code, i.e. the Spatial-Numerical Association of Response Codes (SNARC) effect. But, if this is the case, how is this numerical spatial representation processed in the brain of the blind? Principal Findings: Here we report that, although blind and sighted people have similarly organized numerical representations, the attentional shifts generated by numbers have different electrophysiological correlates (sensorial N100 in the sighted and cognitive P300 in the blind). Conclusions: These results highlight possible differences in the use of spatial representations acquired through modalities other than vision in the blind population.

AB - Background: Although lacking visual experience with numerosities, recent evidence shows that the blind perform similarly to sighted persons on numerical comparison or parity judgement tasks. In particular, on tasks presented in the auditory modality, the blind surprisingly show the same effect that appears in sighted persons, demonstrating that numbers are represented through a spatial code, i.e. the Spatial-Numerical Association of Response Codes (SNARC) effect. But, if this is the case, how is this numerical spatial representation processed in the brain of the blind? Principal Findings: Here we report that, although blind and sighted people have similarly organized numerical representations, the attentional shifts generated by numbers have different electrophysiological correlates (sensorial N100 in the sighted and cognitive P300 in the blind). Conclusions: These results highlight possible differences in the use of spatial representations acquired through modalities other than vision in the blind population.

UR - http://www.scopus.com/inward/record.url?scp=67749116543&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67749116543&partnerID=8YFLogxK

U2 - 10.1371/journal.pone.0006357

DO - 10.1371/journal.pone.0006357

M3 - Article

C2 - 19626126

AN - SCOPUS:67749116543

VL - 4

JO - PLoS One

JF - PLoS One

SN - 1932-6203

IS - 7

M1 - e6357

ER -