1. Proper name anomia with preserved lexical and semantic knowledge after left anterior temporal lesion: A two-way convergence defect
- Author
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Thomas Busigny, Emmanuel J. Barbeau, Michèle Puel, Jean-Luc Nespoulous, Xavier de Boissezon, CHU Toulouse [Toulouse], Service de Neurologie, CHU Toulouse [Toulouse]-CHU Purpan-Pôle Neurosciences, Imagerie cérébrale et handicaps neurologiques (ICHN), Institut des sciences du cerveau de Toulouse. (ISCT), Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse - Jean Jaurès (UT2J)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Unité de Recherche Interdisciplinaire Octogone-Lordat (Octogone-Lordat), Université Toulouse - Jean Jaurès (UT2J), Centre de recherche cerveau et cognition (CERCO), and Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-CHU Toulouse [Toulouse]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Male ,Descriptive knowledge ,Cognitive Neuroscience ,Anomia ,Face (sociological concept) ,Experimental and Cognitive Psychology ,Neuropsychological Tests ,050105 experimental psychology ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Proper noun ,Semantic memory ,0501 psychology and cognitive sciences ,ComputingMilieux_MISCELLANEOUS ,[SCCO.NEUR]Cognitive science/Neuroscience ,05 social sciences ,Amodal perception ,Recognition, Psychology ,Middle Aged ,Temporal Lobe ,Semantics ,Comprehension ,Knowledge ,Neuropsychology and Physiological Psychology ,Face ,Mental Recall ,Convergence (relationship) ,Disconnection ,Psychology ,030217 neurology & neurosurgery ,Cognitive psychology - Abstract
This article describes the case of a patient who, following herpes simplex encephalitis (HSE), retained the ability to access rich conceptual semantic information for familiar people whom he was no longer able to name. Moreover, this patient presented the very rare combination of name production and name comprehension deficits for different categories of proper names (persons and acronyms). Indeed, besides his difficulty to retrieve proper names, SL presented a severe deficit in understanding and identifying them. However, he was still able to recognize proper names on familiarity decision, demonstrating that name forms themselves were intact. We interpret SL's deficit as a rare form of two-way lexico-semantic disconnection, in which intact lexical knowledge is disconnected from semantic knowledge and face units. We suggest that this disconnection reflects the role of the left anterior temporal lobe in binding together different types of knowledge and supports the classical convergence-zones framework (e.g., Damasio, 1989) rather than the amodal semantic hub theory (e.g., Patterson, Nestor, & Rogers, 2007).
- Published
- 2015
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