| Project/Area Number |
06451020
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
実験系心理学
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| Research Institution | OSAKA CITY UNIVERSITY |
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Principal Investigator |
UMEMOTO Mamoru Osaka City University Faculty of Literature Professor, 文学部, 教授 (60101284)
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| Co-Investigator(Kenkyū-buntansha) |
OCHI Hironobu Osaka City University Medical School Professor, 医学部, 教授 (70047067)
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| Project Period (FY) |
1994 – 1996
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| Project Status |
Completed (Fiscal Year 1996)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 1996: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1995: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1994: ¥2,500,000 (Direct Cost: ¥2,500,000)
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| Keywords | PET / ACTIVATION STUDY / WORD-PROCESSING / KANJI / KANA / 言語野 / MRI / 4文字熟語 / かな単語 / 課題研究 |
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| Research Abstract |
By using positron emission tomography (PET), regional cerebral blood flow (rCBF) was measured during kannji and kana word looking and reading with intravenous H_2^<15>O bolis injection. The subjects were 12 volunteer-students.
Each subject was given four tasks as follows, (1) lying on the bed of PET appara-tus with eyes closed. (2) looking at a black dot on the center of the screen. (3) looking words presented 100 msec every 1.5sec on the screen. (4) reading aroud kannji or kana words. Obtained results with subtraction method were, (1) specific increase of rCBF in any area was not obtained in rest condition. (2) rCBF of primary visual area were significantly increased during just looking at the black dot. (3) In reading words presented on the screen, rCBF was specifically increased in bilaterally medial and lateral occipital area and temporalarea. (4) Any difference of rCBF between reading kanji and kana words.
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