| Project/Area Number |
12301005
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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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 | KYOTO UNIVERSITY |
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Principal Investigator |
OSAKA Naoyuki Kyoto Univ., Graduate School of Letters, Prof., 文学研究科, 教授 (20113136)
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| Co-Investigator(Kenkyū-buntansha) |
ASHIDA Hiroshi Kyoto Univ., Graduate School of Letters, Assistant Prof., 文学研究科, 助教授 (20293847)
FUKUYAMA Hidenao Kyoto Univ., Graduate School of Medicine, Human Brain Research Center, Prof., 高次脳機能総合研究センター, 教授 (90181297)
SHIBASAKI Hiroshi Kyoto Univ., Graduate School of Medicine, Prof., 医学研究科(H15年度まで), 教授 (30037444)
OSAKA Mariko Osaka Univ. of Foreign Studies, Dept. of Psychology, Prof., 外国語学部, 教授 (70144300)
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| Project Period (FY) |
2000 – 2003
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| Project Status |
Completed (Fiscal Year 2003)
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| Budget Amount *help |
¥43,600,000 (Direct Cost: ¥37,600,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2003: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2002: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2001: ¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2000: ¥17,600,000 (Direct Cost: ¥17,600,000)
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| Keywords | Working Memory / Reading Span / Prefrontal Cortex / ACC / Attention / Central Executive / リスニングスパン |
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| Research Abstract |
Higher brain functions related with consciousness and working memory are investigated using behavioral and fMRI procedures. We found working memory plays a critical role on active consciousness including mental functions like information updating and adjustment. A series of experiments, using fMRI and related psychological working memory task (dual task), suggest that working memory's executive function could be operated based on ACC-PFC neural network in human prefrontal cortex both for verbal and spatial working memory. We found an individual difference in working memory also be fully explained from this network by applying weighted function using a group of high-span and low-span subjects. The results indicate possibility of separating verbal and spatial working memory in terms of activated brain areas using ROI and SEM analyses. WE have published three papers in NeuroImag, one in Behavioral and Brain Research and one in Neuroscience Letters.
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