Cognitive neuropsychological and regional cerebral blood flow study of a Japanese-English bilingual girl with specific language impairment (SLI)

Akira Uno, Taeko N. Wydell, Motoichiro Kato, Kanae Itoh, Fumihiro Yoshino

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Abstract

We report here on an investigation into the possible factors which might have contributed to language impairment (LI) in EM, a 14-year-old Japanese-English bilingual girl. EM was born in the UK to Japanese parents with no other siblings, and used English to communicate with all other people except for her parents. A delay in her English language development was identified at primary school in the UK, which was attributed to her bilingualism. The deficiency in her English language skills persisted into her adolescence despite more than adequate educational opportunities (including additional language support). At the start of her secondary education, language ability/literacy attainment tests were conducted in both English and Japanese, and the results suggested specific language impairment (SLI) in both languages. Further, her brain Single Photon Emission Computed Tomography (SPECT) revealed significantly lower Regional Cerebral Blood Flow(rCBF) in the left temporo-parietal area, which is also similar to the area of dysfunction often found among Japanese individuals with SLI.

Original languageEnglish
Pages (from-to)154-163
Number of pages10
JournalCortex
Volume45
Issue number2
DOIs
Publication statusPublished - 2009 Feb

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Keywords

  • Bilingual
  • SLI
  • SPECT
  • rCBF

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Experimental and Cognitive Psychology
  • Cognitive Neuroscience

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