Semantic processing in a coma patient

Neurology, Medical Psychology, Critical Care
Case Report
10.1102/1470-5206.2005.0013
5
37-41
Semantic processing in a coma patient
Boris Kotchoubey, Jeroˆme Daltrozzo, Norma Wioland, Veronique Mutschler, Philippe Lutun, Niels Birbaumer and Albert Jaeger
B Kotchoubey, Institute of Medical Psychology and Behavioral Neurobiology, Gartenstrasse 29, 72074 Tu¨bingen, Germany. Tel.: +49 7071 29 74221; fax: +49 7071 29 5956.
boris.kotchoubey@uni-tuebingen.de

Electrical brain responses to words semantically related versus unrelated to their context were recorded in a coma patient on days 6 (Glasgow Coma Scale, GCS=6) and 22 (GCS=9). Significant differences between related and unrelated words (which were completely matched in their physical features) were consistently observed in both examinations. This is the first evidence for semantic stimulus processing in coma.

Coma; consciousness; event-related potentials (ERP); late positive complex; N400; language
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Editor-in-Chief

Frank Cross
Consultant Vascular and General Surgeon
The London Clinic, UK

Editors

Neil Barnes
Consultant Physician
Barts Health NHS Trust, London, UK
Ali Jawad
Professor of Rheumatology
Barts Health NHS Trust, London, UK

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