Determination of crossed language dominance: dissociation of language lateralization within the temporoparietal cortex

Andreas Jansen, Stephanie Müller, Johannes Bedenbender, Sören Krach, Frieder M Paulus, Tilo Kircher, Jens Sommer

Abstract

'Crossed language dominance' is a rare form of language lateralization, characterized by a dissociation of anterior and posterior language regions. We present the case of a healthy subject whose language lateralization pattern, as assessed by functional magnetic resonance imaging, is reliably characterized as crossed language dominance based on a word generation task, but typical left-lateralized when a semantic decision task is applied. A single language task is therefore not sufficient to characterize language lateralization, at least not for subjects with rare forms of language dominance. In the pre-surgical diagnostic of language lateralization, several language tasks tapping into different aspects of language functions should be applied.

OriginalspracheEnglisch
ZeitschriftNeurocase : case studies in neuropsychology, neuropsychiatry, and behavioural neurology
Jahrgang19
Ausgabenummer4
Seiten (von - bis)348-50
Seitenumfang3
ISSN1355-4794
DOIs
PublikationsstatusVeröffentlicht - 08.2013

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