منابع مشابه
Why does language laterality index vary?
Introduction A strong motivation for clinical use of functional magnetic resonance imaging (fMRI) is to determine functional language lateralisation prior to neurosurgery. Problems remain however with this approach: Agreement is not complete between fMRI lateralisation of language and the Wada test (1). Further, it has been seen that the laterality index (LI) measured with fMRI can vary with an...
متن کاملLanguage laterality assessed by unilateral ECT and dichotic monitoring.
A dichotic monitoring test for the lateralisation of speech dominance was compared with testing for dysphasia after unilateral electroconvulsive therapy to each side of the head in 31 patients, and the intracarotid amylobarbitone test in four epileptic patients. Twenty-eight patients shown to be left speech dominant also showed right ear advantages in the dichotic test. Four of the five right s...
متن کاملLanguage Laterality in Left - Handed Aphas 1 Cs
LATERALITY refers to the relationship of a cerebral function, or the symptom of its disturbance, to one cerebral hemisphere. Although the term is used mostly in connexion with handedness, aphasias, and agnosias, it has much wider implications and, in its broader sense, it constitutes the basis for localizing the lesion in cerebral hemiplegia in the opposite hemisphere. The association of right ...
متن کاملThe Effects of Attention on Language Laterality in Schizophrenia
Language lateralization is reduced in schizophrenia patients relative to healthy individuals. It remains unclear whether these findings are moderated by the impaired attentional processes seen in the disorder. This study investigated whether patients increase their right ear advantage with the aid of a tone cue to systematically control for the effects of decreased alertness. Eighteen right-han...
متن کاملSpatial MEG laterality maps for language: clinical applications in epilepsy.
Functional imaging is increasingly being used to provide a noninvasive alternative to intracarotid sodium amobarbitol testing (i.e., the Wada test). Although magnetoencephalography (MEG) has shown significant potential in this regard, the resultant output is often reduced to a simplified estimate of laterality. Such estimates belie the richness of functional imaging data and consequently limit ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Laterality: Asymmetries of Body, Brain and Cognition
سال: 2006
ISSN: 1357-650X,1464-0678
DOI: 10.1080/13576500600691162