Translational approach to apathy-like behavior in mice: From the practical point of view

Kenji F. Tanaka, Takuya Hamaguchi

研究成果: Review article査読

2 被引用数 (Scopus)


Apathy is a pervasive clinical phenomenon that deserves more attention at the translational and pre-clinical levels. To study apathy-like behavior in mice, we relied on an operational definition of apathy: the quantitative reduction of voluntary, goal-directed behaviors. We recently found that the chronic loss of function of a specific cell type (striatal dopamine receptor type 2-expressing medium spiny neurons, D2-MSN) in a restricted region (the ventrolateral striatum, VLS) was sufficient to induce apathy-like behavior in a food-seeking operant task. We further showed that VLS D2-MSN are activated at the preparatory period, and that optogenetic inhibition of VLS D2-MSN during that period resulted in transient decreases in instrumental motivation, strengthening the hypothesis that VLS D2-MSN mediate apathy-like behavior in mice. Mice bearing VLS D2-MSN dysfunction can thus be regarded as an apathy model for future translational studies.

ジャーナルPsychiatry and Clinical Neurosciences
出版ステータスPublished - 2019 11月 1

ASJC Scopus subject areas

  • 神経科学(全般)
  • 神経学
  • 臨床神経学
  • 精神医学および精神衛生


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