Category-specific cortical mapping: color-naming areas

Journal of Neurosurgery
Franck-Emmanuel RouxJean-François Démonet

Abstract

It has been hypothesized that a certain degree of specialization exists within language areas, depending on some specific lexical repertories or categories. To spare hypothetical category-specific cortical areas and to gain a better understanding of their organization, the authors studied patients who had undergone electrical stimulation mapping for brain tumors and they compared an object-naming task with a category-specific task (color naming). Thirty-six patients with no significant preoperative language deficit were prospectively studied during a 2-year period. Along with a reading task, both object- and color-naming tasks were used in brain mapping. During color naming, patients were asked to identify 11 visually presented basic colors. The modality specificity of the color-naming sites found was subsequently tested by asking patients to retrieve the color attributes of objects. High individual variability was observed in language organization among patients and in the tasks performed. Significant interferences in color naming were found in traditional language regions-that is, Broca (p < 0.003) and Wernicke centers (p = 0.05)--although some color-naming areas were occasionally situated outside of these regions. Color-nami...Continue Reading

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Citations

Nov 15, 2011·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Rossella PaganiMarcella Laiacona
Oct 22, 2008·Journal of Neurosurgery·Carlo GiussaniJean-François Démonet
Sep 30, 2008·Journal of Neurosurgery·Franck-Emmanuel RouxJean-François Démonet
Jun 23, 2009·Journal of Neurosurgery·Carlo GiussaniFranck-Emmanuel Roux
May 26, 2012·Physics of Life Reviews·Alfredo Ardila
Feb 8, 2011·NeuroImage·Carlo GiussaniFranck-Emmanuel Roux
Mar 5, 2016·Scientific Reports·Chihiro I TajimaHideyuki Suzuki
Jun 26, 2007·Cognition·Kylie J BarnettKevin J Mitchell
Jul 1, 2015·Behavioural Neurology·Alfredo Ardila
May 23, 2015·PloS One·Juan HerreroCarmen Castañeda

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