Cognitive processing in Chinese literate and illiterate subjects: An fMRI study

Geng Li, Raymond T.F. Cheung, Jia Hong Gao, Tatia M.C. Lee, Li Hai Tan, Peter T. Fox, Clifford R. Jack, Edward S. Yang

Producción científica: Articlerevisión exhaustiva

31 Citas (Scopus)

Resumen

Functional magnetic resonance imaging (fMRI) and positron emission tomography (PET) were used to map brain activation during language tasks. While previous studies have compared performance between alphabetic literate and illiterate subjects, there have been no such data in Chinese-speaking individuals. In this study, we used fMRI to examine the effects of education on neural activation associated with silent word recognition and silent picture-naming tasks in 24 healthy right-handed Chinese subjects (12 illiterates and 12 literates). There were 30 single Chinese characters in the silent word recognition task and 30 meaningful road-signs in the silent picture-naming task. When we compared literate and illiterate subjects, we observed education-related differences in activation patterns in the left inferior/middle frontal gyrus and both sides of the superior temporal gyrus for the silent word recognition task and in the bilateral inferior/middle frontal gyrus and left limbic cingulated gyrus for the silent picture-naming task. These results indicate that the patterns of neural activation associated with language tasks are strongly influenced by education. Education appears to have enhanced cognitive processing efficiency in language tasks.

Idioma originalEnglish (US)
Páginas (desde-hasta)144-152
Número de páginas9
PublicaciónHuman Brain Mapping
Volumen27
N.º2
DOI
EstadoPublished - feb 2006

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Anatomy

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