Striatonigral direct pathway activation is sufficient to induce repetitive behaviors

Youcef Bouchekioua*, Iku Tsutsui-Kimura, Hiromi Sano, Miwako Koizumi, Kenji F. Tanaka, Keitaro Yoshida, Yutaka Kosaki, Shigeru Watanabe, Masaru Mimura

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Pharmacological intervention in the substantia nigra is known to induce repetitive behaviors in rodents, but a direct causal relationship between a specific neural circuit and repetitive behavior has not yet been established. Here we demonstrate that optogenetic activation of dopamine D1 receptor-expressing MSNs terminals in the substantia nigra pars reticulata resulted in sustained and chronic repetitive behaviors. These data show for the first time that activation of the striatonigral direct pathway is sufficient to generate motor stereotypies.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalNeuroscience Research
Publication statusPublished - 2018 Jul


  • Autistic spectrum disorder (ASD)
  • D1-MSNs
  • Direct pathway
  • Obsessive-compulsive spectrum disorders (OCSD)
  • Optogenetics
  • Repetitive behaviors
  • Striato-nigral pathway
  • Tourette syndrom

ASJC Scopus subject areas

  • General Neuroscience


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