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Etcheverry, Louise; Seidel, Barbara; Grande, Marion; Schulte, Stephanie; Pieperhoff, Peter; Sudmeyer, Martin; Minnerop, Martina; Binkofski, Ferdinand; Huber, Walter; Grodzinsky, Yosef; Amunts, Katrin; Heim, Stefan – Neuropsychologia, 2012
Primary progressive aphasia (PPA) is a rare clinical dementia syndrome affecting predominantly language abilities. Word-finding difficulties and comprehension deficits despite relatively preserved cognitive functions are characteristic symptoms during the first two years, and distinguish PPA from other dementia types like Alzheimer's disease.…
Descriptors: Aphasia, Symptoms (Individual Disorders), Longitudinal Studies, Patients
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Keller, Simon S.; Crow, Timothy; Foundas, Anne; Amunts, Katrin; Roberts, Neil – Brain and Language, 2009
In this review, we (i) describe the nomenclature of Broca's area and show how the circumscribed definition of Broca's area is disassociated from Broca's aphasia, (ii) describe in detail how the gross anatomy of Broca's area varies between people, and how the definitions vary between studies, (iii) attempt to reconcile the findings of structural…
Descriptors: Research Methodology, Definitions, Measurement Techniques, Anatomy
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Amunts, Katrin; Schleicher, Axel; Zilles, Karl – Brain and Language, 2004
Studies on brains of individuals with an exceptional mental capacity are of widespread interest. Here, we analyze the cytoarchitecture of areas 44 and 45 (anatomical correlates of Broca's speech region) of a person with a documented extraordinary competence in language performance (Emil Krebs, E.K.), and compared it with 11 control brains.…
Descriptors: Linguistic Competence, Speech, Linguistic Performance, Brain Hemisphere Functions