Language Lateralization of Chinese-English Bilingual Patients With Temporal Lobe Epilepsy: A Functional MRI Study

Functional MRI was used to examine language lateralization of Chinese characters and English words associated with temporal lobe epilepsy (TLE) in Chinese-English bilinguals with left or right TLE. The results suggest that the neural basis of processing Chinese and English seems to be different, as...

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Bibliographic Details
Published in:Neuropsychology 2006-09, Vol.20 (5), p.589-597
Main Authors: Cheung, Mei-chun, Chan, Agnes S, Chan, Yu-leung, Lam, Joseph M. K
Format: Article
Language:English
Subjects:
Adolescent
Adult
Adult and adolescent clinical studies
Bilingualism
Biological and medical sciences
Data Interpretation, Statistical
Education
Electroencephalography
Epilepsy
Epilepsy, Temporal Lobe - psychology
Ethnic Groups
Female
Functional Laterality - physiology
Functional Magnetic Resonance Imaging
Headache. Facial pains. Syncopes. Epilepsia. Intracranial hypertension. Brain oedema. Cerebral palsy
Human
Humans
Language
Lateral Dominance
Magnetic Resonance Imaging
Male
Medical sciences
Nervous system (semeiology, syndromes)
Neurology
Organic mental disorders. Neuropsychology
Psycholinguistics
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Sex Characteristics
Temporal Lobe
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Description
Summary:Functional MRI was used to examine language lateralization of Chinese characters and English words associated with temporal lobe epilepsy (TLE) in Chinese-English bilinguals with left or right TLE. The results suggest that the neural basis of processing Chinese and English seems to be different, as normal controls demonstrated left hemispheric lateralization in reading English words but bi-hemispheric lateralization in reading Chinese characters. This difference in the neural bases of Chinese and English processing was found to affect the patterns in change-of-language processing associated with TLE. That is, whereas left-TLE patients were more likely than right-TLE patients to demonstrate a bi-hemispheric language involvement in reading English, both left- and right-TLE patients demonstrated primarily bilateral hemispheric involvement for reading Chinese characters.
ISSN:0894-4105
1931-1559
DOI:10.1037/0894-4105.20.5.589