Demonstrating the implicit processing of visually presented words and pseudowords.

Détails

ID Serval
serval:BIB_F09149318665
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Demonstrating the implicit processing of visually presented words and pseudowords.
Périodique
Cerebral Cortex
Auteur(s)
Price C.J., Wise R.J., Frackowiak R.S.
ISSN
1047-3211 (Print)
ISSN-L
1047-3211
Statut éditorial
Publié
Date de publication
1996
Volume
6
Numéro
1
Pages
62-70
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish
Résumé
This study demonstrates that even when subjects are instructed to perform a nonlinguistic visual feature detection task, the mere presence of words or pseudowords in the visual field activates a widespread neuronal network that is congruent with classical language areas. The implication of this result is that subjects will process words beyond the functional demands of the task. Therefore, contrasting brain activity in a word task that explicitly requires a cognitive function with a word task in which the function is activated implicitly will not necessarily isolate the brain area of interest. Furthermore, in most brain regions, we found that pseudowords, which have unfamiliar phonological associations and no associated semantic association, produce greater activation than words. Greater brain activity associated with pseudowords illustrates that unfamiliar stimuli that are unable to access word associations may activate the neuronal network more strongly than familiar words for which access occurs with ease.
Mots-clé
Brain/physiology, Brain/radionuclide imaging, Cerebrovascular Circulation/physiology, Humans, Photic Stimulation, Tomography, Emission-Computed, Visual Pathways/physiology
Pubmed
Web of science
Open Access
Oui
Création de la notice
16/09/2011 20:22
Dernière modification de la notice
09/05/2019 3:16
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