| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
Reinstatement of drug use is a critical problem of drug addiction. In this study, using the conditioned place preference paradigm combined with electrophysiological recordings, optogenetics and chemogenetic techniques, we found that dopaminergic transmission in the medial prefrontal cortex (mPFC), one of the target brain regions of dopamine neurons in the ventral tegmental area, plays a critical role for inducing the reinstatement of cocaine use. Our data show that excitation of mPFC neurons, which is mediated by D1 dopamine receptor signaling, induces cocaine craving behaviors, including reinstatement.
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