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The relation between intraoral size perception and feeding behabior

Research Project

Project/Area Number 24593167
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Social dentistry
Research InstitutionShowa University

Principal Investigator

TOMITA Kaori  昭和大学, 歯学部, 兼任講師 (80338532)

Co-Investigator(Kenkyū-buntansha) TAKAHASHI Mari  昭和大学, 歯学部スペシャルニーズ口腔医学講座口腔衛生学部門, 兼任講師 (20445597)
OOKA Takafumi  昭和大学, 歯学部スペシャルニーズ口腔医学講座口腔衛生学部門, 兼任講師 (30453632)
MUKAI Yoshiharu  昭和大学, 名誉教授 (50110721)
Project Period (FY) 2012-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords口腔感覚 / 立体サイズ認識 / レジン / 温度 / 認識時間 / 物性 / 要因分析 / 口腔 / 立体認識 / 摂食 / 摂食・嚥下 / 形状
Outline of Final Research Achievements

The purpose of this study is to investigate the factors which affect intraoral size perception. The pilot study revealed that time required for identification affected the direction of illusion. Long manipulation leads to overestimation and short manipulation leads to underestimation of objects size. Taking this into account, the second experiment was performed. 35 young volunteers detected the size of cylinders inserted into oral cavity blindly. Each cylinder had an identical thickness (5mm), but varied in diameter (12, 14, and16mm). After 7 seconds’ free manipulation, they drew picture of each cross section at the size that they perceived. The procedures were repeated 6 times with different types of resin (3 different temperatures in combination with 2 different textures).Most participants underestimated the cylinder size irrespective of the size, temperature, or texture. Soft pieces were more deceptive. Temperature of the objects had no effect on size perception.

Report

(5 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (3 results)

All 2014 2013

All Presentation (3 results)

  • [Presentation] How can we support safe and tasty feeding of people with disability?2014

    • Author(s)
      K.TOMITA, T.OOKA, M.TAKAHASHI,Y.MUKAI, S.HIRONAKA
    • Organizer
      22nd Congress of international association of disability and oral health
    • Place of Presentation
      Berlin Hotel estrel
    • Year and Date
      2014-10-02 – 2014-10-04
    • Related Report
      2014 Research-status Report
  • [Presentation] 口腔における立体認識能力の検討2014

    • Author(s)
      冨田かをり、大岡貴史、高橋摩理、村上浩史、向井美惠、弘中祥司
    • Organizer
      第20回日本摂食嚥下リハビリテーション学会
    • Place of Presentation
      東京 京王プラザホテル
    • Year and Date
      2014-09-06 – 2014-09-07
    • Related Report
      2014 Research-status Report
  • [Presentation] 口腔の立体認識能力に温度が及ぼす影響2013

    • Author(s)
      冨田 かをり、大岡貴史、高橋摩理、村上浩史、向井美惠、弘中祥司
    • Organizer
      第19回日本摂食・嚥下リハビリテーション学会
    • Place of Presentation
      岡山
    • Related Report
      2013 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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