• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Tip-of-the-tongue states and aging

Research Project

Project/Area Number 26381001
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Experimental psychology
Research InstitutionPrefectural University of Hiroshima (2015-2016)
Tokyo Metropolitan Geriatric Hospital and Institute of Gerontology (2014)

Principal Investigator

IJUIN Mutsuo  県立広島大学, 保健福祉学部(三原キャンパス), 教授 (00250192)

Co-Investigator(Renkei-kenkyūsha) AWATA Shuichi  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究部長 (90232082)
KONDO Tadahisa  工学院大学, 情報学部, 教授 (60418548)
Research Collaborator WYDELL Taeko N.  
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsTOT(喉まで出かかっている現象) / 認知加齢 / 言語的知識 / シミュレーション / コネクショニスト・モデル / 喉まで出かかっている現象 / 語彙数 / 意味性認知症 / 認知症
Outline of Final Research Achievements

Previous reports have found that older adults do experience more tip-of-the-tongue (TOT) states than younger adults. In the present research, we investigated the mechanism of increasing TOT in older adults using two types of approaches - behavioral and computational approaches. In experimental study, we examined whether the age effect is influenced by vocabulary knowledge. The effect of age difference still remained, even when the frequency of TOT was adjusted for vocabulary size.
Computational study was conducted using an artificial neural network model producing word pronunciation from its semantics. After training, when re-learning process was introduced to the network with high values of weight decay (correspond to low levels of metabolic activity), network made more errors in low-frequency proper noun with sparse phonological neighborhoods. These findings suggest that TOT increase with advancing age because normal aging results in a retrieval-processing deficit.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report

Research Products

(1 results)

All 2016

All Book (1 results)

  • [Book] 最新 認知心理学への招待[改訂版]-心の働きとしくみを探る-2016

    • Author(s)
      御領謙,菊地正,江草浩幸,伊集院睦雄,服部雅史,井関龍太
    • Total Pages
      337
    • Publisher
      サイエンス社
    • Related Report
      2016 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi