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

2008 Fiscal Year Final Research Report

Drug addiction as unregulated learning : the role of dopamine in the prefrontal cortex

Research Project

  • PDF
Project/Area Number 19700309
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Neuroscience in general
Research InstitutionThe Institute of Physical and Chemical Research

Principal Investigator

WEITEMIER Adam  The Institute of Physical and Chemical Research, Murphy研究ユニット, 研究員 (70419878)

Project Period (FY) 2007 – 2008
Keywordsnucleus accumbens / prefrontal cortex / dopamine / classical conditioning / microdialysis / drug abuse / reward
Research Abstract

本研究ではマイクロダイアリシス法を用いてモルヒネ場所嗜好性(もしくはナロキソン場所嫌悪性)試験中の脳内での神経化学的な活動をモニターした。その結果、条件付け中のモルヒネ反復投与によるドーパミン活動の亢進と条件付け後の場所嗜好性強度の間に関係性があることが明らかとなった。 予想に反して、条件付け後のモルヒネ場所嗜好の発現中にはドーパミン活動の上昇は認められず、逆にドーパミン活動と場所嗜好性強度の間に負の相関関係が認められた。それに対して、ナロキソン場所嫌悪の発現中にはドーパミン活動が上昇しており、ドーパミンとセロトニンのバランスが場所嫌悪に関係があることを明らかとした。

  • Research Products

    (3 results)

All 2009 2008

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (2 results)

  • [Journal Article] Accumbal dopamine and serotonin activity throughout acquisition and expression of place conditioning : correlative relationships with preference and aversion2009

    • Author(s)
      Adam Z. Weitemier, Niall P. Murphy
    • Journal Title

      European Journal of Neuroscience 29, 5

      Pages: 1015-26

    • Peer Reviewed
  • [Presentation] Mesolimbic dopamine and serotonin in drug conditioned place preference and aversion : correlations with voluntary behavior2008

    • Author(s)
      Adam Weitemier
    • Organizer
      Society for Neuroscience Annual Meeting
    • Place of Presentation
      Washington D.C. Convention Center
    • Year and Date
      2008-11-07
  • [Presentation] Mesolimbic dopamine and serotonin in drug conditioned place preference and aversion2008

    • Author(s)
      Adam Weitemier
    • Organizer
      correlations with voluntary behavior Workshop on Mechanism of Brain and Mind
    • Place of Presentation
      Wel City Sapporo, Hokkaido
    • Year and Date
      2008-08-09

URL: 

Published: 2010-06-10   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi