Electrostimulation mapping of comprehension of auditory and visual words

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
Franck-Emmanuel RouxJean-François Démonet

Abstract

In order to spare functional areas during the removal of brain tumours, electrical stimulation mapping was used in 90 patients (77 in the left hemisphere and 13 in the right; 2754 cortical sites tested). Language functions were studied with a special focus on comprehension of auditory and visual words and the semantic system. In addition to naming, patients were asked to perform pointing tasks from auditory and visual stimuli (using sets of 4 different images controlled for familiarity), and also auditory object (sound recognition) and Token test tasks. Ninety-two auditory comprehension interference sites were observed. We found that the process of auditory comprehension involved a few, fine-grained, sub-centimetre cortical territories. Early stages of speech comprehension seem to relate to two posterior regions in the left superior temporal gyrus. Downstream lexical-semantic speech processing and sound analysis involved 2 pathways, along the anterior part of the left superior temporal gyrus, and posteriorly around the supramarginal and middle temporal gyri. Electrostimulation experimentally dissociated perceptual consciousness attached to speech comprehension. The initial word discrimination process can be considered as an "au...Continue Reading

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Citations

Sep 21, 2015·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Iain DeWitt, Josef P Rauschecker
May 14, 2016·Journal of Neurosurgery·Joanna SierpowskaAntoni Rodríguez-Fornells
Jul 16, 2016·Journal of Neurosurgery·Franck-Emmanuel RouxCarlo Giussani
Dec 30, 2017·The Journal of Physiology·Franck-Emmanuel RouxJean-Baptiste Durand
Aug 2, 2018·Journal of Clinical and Experimental Neuropsychology·Carla Ruis
Nov 2, 2019·Cerebral Cortex·William Matchin, Gregory Hickok
Nov 7, 2019·Scientific Reports·Clément DondéDaniel C Javitt
Aug 24, 2017·Neurological Sciences : Official Journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology·Costanza Papagno
Sep 12, 2020·Journal of Neural Engineering·Elizabeth L JohnsonRobert T Knight
Oct 19, 2020·Journal of Neuroscience Research·Robin BaurèsFranck-Emmanuel Roux
Feb 20, 2019·Current Opinion in Behavioral Sciences·Josef P Rauschecker
Apr 20, 2021·World Neurosurgery·Krasimir MinkinPetia Dimova
May 18, 2021·Journal of Alzheimer's Disease : JAD·Joseph A HirschKathleen M Fry

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