Reading salt activates gustatory brain regions: fMRI evidence for semantic grounding in a novel sensory modality
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Título
Reading salt activates gustatory brain regions: fMRI evidence for semantic grounding in a novel sensory modalityAutoría
Fecha de publicación
2012-11Editor
Oxford University PressISSN
1047-3211Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
http://cercor.oxfordjournals.org/content/22/11/2554.full.pdf+htmlVersión
info:eu-repo/semantics/submittedVersionPalabras clave / Materias
Resumen
Because many words are typically used in the context of their referent objects
and actions, distributed cortical circuits for these words may bind information about
their form with perceptual and motor aspects of ... [+]
Because many words are typically used in the context of their referent objects
and actions, distributed cortical circuits for these words may bind information about
their form with perceptual and motor aspects of their meaning. Previous work has
demonstrated such semantic grounding for sensorimotor, visual, auditory and
olfactory knowledge linked to words, which is manifest in activation of the
corresponding areas of the cortex. Here we explore the brain basis of gustatory
semantic links of words whose meaning is primarily related to taste. In a blocked
fMRI design, Spanish taste words and control words matched for a range of
factors (including valence, arousal, imageability, frequency of use, number of
letters and syllables) were presented to 59 right-handed participants in a passive
reading task. Whereas all the words activated the left inferior frontal (BA44/45) and
the posterior middle and superior temporal gyri (BA21/22), taste-related words
produced a significantly stronger activation in these same areas, and also in the
anterior insula, frontal operculum, lateral orbitofrontal gyrus and thalamus among
others. As these areas comprise primary and secondary gustatory cortices, we
conclude that the meaning of taste words is grounded in distributed cortical circuits
reaching into areas that process taste sensations [-]
Publicado en
Cerebral Cortex, 2012, num. 22Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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