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The effect of 5-HTTLPR to risk anticipation and adaptive behavior.

Research Project

Project/Area Number 16K18632
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Applied anthropology
Research InstitutionNagasaki University

Principal Investigator

NISHIMURA Midori  長崎大学, 医歯薬学総合研究科(医学系), 客員研究員 (90761049)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords事象関連電位 / セロトニントランスポーター / 遺伝子多型 / 注意 / 実験心理学 / セロトニントランスポーター遺伝子多型 / 生理的多型 / 生理人類学 / セロトニン / 実験系心理学
Outline of Final Research Achievements

The functional polymorphism (5-HTTLPR) has two alleles: the Short (s) type and the Long (l) type. The l allele of 5-HTTLPR is considered to be associated with higher stress tolerance than s allele. On the other hand, effects for affective responce from 5-HTTLPR are controversial. We aimed to specify the adaptive significance of this genetic variation.
The subjects were 42 male students (19-23 years old). Subjects were presented the gaze point for 500 ms, the cue for 2000 ms, and the emotional image for 3500 ms. In the Affective Cue conditions, the cue stimulus indicated the affective valence of the image. In the Null Cue condition, the cue stimulus did not indicate any affective valence. Participants with l allele(s) showed significantly larger LPP amplitude to unpleasant picture in affective cue condition. This result showed that participants with the l allele had attention bias from anticipation. It suggested that measures for avoiding risk may be different depending on 5-HTTLPR.

Academic Significance and Societal Importance of the Research Achievements

5-HTTLPRは情動反応や社会的な認知に関与するとされていたが、その効果については文化的環境との相互作用等の要因からの検討が必要であった。sアレルは東アジア集団、特に日本に多く、過覚醒な反応が危険回避において適応的意義があったことが示唆されているが、実験的には明らかになっていなかった。本研究によりSタイプは未知の危険に対して、Lタイプは既知の危険に対しての注意反応が異なり、それぞれの遺伝子タイプによって危機回避の方策が異なる可能性が示唆された。この成果は遺伝子多型によるストレス耐性の違いなどを明らかにすることにつながる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2018 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Association of EGLN1 genetic polymorphisms with SpO2 responses to acute hypobaric hypoxia in a Japanese cohort2018

    • Author(s)
      Yasukochi Yoshiki、Nishimura Takayuki、Motoi Midori、Watanuki Shigeki
    • Journal Title

      Journal of Physiological Anthropology

      Volume: 37 Issue: 1 Pages: 9-9

    • DOI

      10.1186/s40101-018-0169-7

    • NAID

      120006987329

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 情動予期時の事象関連電位とセロトニントランスポーター遺伝子多型の関連2018

    • Author(s)
      本井 碧,岸田 文,綿貫茂喜
    • Organizer
      日本生理人類学会第78回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 援助要請行動の抑制要因と性格特性の関連-役所への負の印象に着目して-2018

    • Author(s)
      岸田 文,本井 碧,西村英伍,尾方義人,藤 智亮,大草孝介,綿貫茂喜
    • Organizer
      日本生理人類学会第78回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ボリビア高地集団における循環動態の高度差による影響2018

    • Author(s)
      西村貴孝,大西真由美,西原三佳,Juan Ugarte,安河内彦輝,福田英輝,安部恵代,有馬和彦,富田義人,本井 碧,綿貫茂喜,青柳 潔
    • Organizer
      日本生理人類学会第77回大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] The relationship between 5-HTTLPR and Event-related Potentials (ERPs) during picture processing in anticipation task2018

    • Author(s)
      Motoi M, Kishida F, Watanuki S
    • Organizer
      Russian-Japanese Scientific Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Relationship Between 5-HTTLPR and Event-Related Potential (ERP) During Anticipation of Affective Picture2018

    • Author(s)
      Motoi M, Kishida F, Watanuki S
    • Organizer
      International Symposium on physiological Anthoropology
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The relationship between 5-HTTLPR and Event-related Potentials(RRPs) during affective picture processimg of different objects2016

    • Author(s)
      Motoi M, Kishida F, Egashira Y, Minote N, Watanuki S
    • Organizer
      Conference of "Modernization and Health in the Asia-Pacific Region"
    • Place of Presentation
      Hilo, Hawaii, USA
    • Year and Date
      2016-08-19
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 低酸素環境下における事象関連電位とミトコンドリアDNAハプロタイプの関連2016

    • Author(s)
      本井碧, 黒田知宏, 岸田文, 西村貴孝, 綿貫茂喜
    • Organizer
      日本生理人類学会第73回大会
    • Place of Presentation
      大阪市立大学(大阪府・大阪市)
    • Year and Date
      2016-06-04
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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