Grapheme-color synesthetes show peculiarities in their emotional brain: cortical and subcortical evidence from VBM analysis of 3D-T1 and DTI data

Melero, Helena and Peña Melián, Ángel and Rios Lagos, Marcos and Pajares Martinsanz, Gonzalo and Hernández Tamames, J.A. and Álvarez Linera, Juan (2013). Grapheme-color synesthetes show peculiarities in their emotional brain: cortical and subcortical evidence from VBM analysis of 3D-T1 and DTI data. "Experimental Brain Research", v. 227 (n. 3); pp. 343-353. ISSN 0014-4819. https://doi.org/10.1007/s00221-013-3514-4.

Description

Title: Grapheme-color synesthetes show peculiarities in their emotional brain: cortical and subcortical evidence from VBM analysis of 3D-T1 and DTI data
Author/s:
  • Melero, Helena
  • Peña Melián, Ángel
  • Rios Lagos, Marcos
  • Pajares Martinsanz, Gonzalo
  • Hernández Tamames, J.A.
  • Álvarez Linera, Juan
Item Type: Article
Título de Revista/Publicación: Experimental Brain Research
Date: June 2013
ISSN: 0014-4819
Volume: 227
Subjects:
Freetext Keywords: Grapheme-color synesthesia, voxel-based morphometry, cortical emotional areas, subcortical gray nuclei
Faculty: Centro de Tecnología Biomédica (CTB) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Grapheme-color synesthesia is a neurological phenomenon in which viewing achromatic letters/numbers leads to automatic and involuntary color experiences. In this study, voxel-based morphometry analyses were performed on T1 images and fractional anisotropy measures to examine the whole brain in associator grapheme-color synesthetes. These analyses provide new evidence of variations in emotional areas (both at the cortical and subcortical levels), findings that help understand the emotional component as a relevant aspect of the synesthetic experience. Additionally, this study replicates previous findings in the left intraparietal sulcus and, for the first time, reports the existence of anatomical differences in subcortical gray nuclei of developmental grapheme-color synesthetes, providing a link between acquired and developmental synesthesia. This empirical evidence, which goes beyond modality-specific areas, could lead to a better understanding of grapheme-color synesthesia as well as of other modalities of the phenomenon.

More information

Item ID: 31239
DC Identifier: http://oa.upm.es/31239/
OAI Identifier: oai:oa.upm.es:31239
DOI: 10.1007/s00221-013-3514-4
Official URL: http://link.springer.com/article/10.1007%2Fs00221-013-3514-4
Deposited by: Memoria Investigacion
Deposited on: 13 Apr 2015 17:23
Last Modified: 13 Apr 2015 17:23
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