Research theme for competitive and other funds (2)：
2018 - 2024 子どもの感情障害に対する認知行動療法の統一プロトコルの有効性
2011 - 2015 Biological basis and possible tailor-made therapy of developmental disabilities with problematic social behavior
Papers (168)：
Yoshinori Sasaki, Masahide Usami, Yuki Hakosima, Kumi Inazaki, Yuki Mizumoto, Mitsuhiro Miyamae, Masaya Ito, Katsunaka Mikami, Noa Tsujii, Takayuki Okada, et al. Preliminary findings on school refusal outcomes in children and adolescents following 1-Year psychiatric outpatient treatment. Early Intervention in Psychiatry. 2026. 20. 3
Masahide Usami, Yoshinori Sasaki, Mayuna Ichikawa, Miki Matsudo, Ayaka Hashimoto, Shun Kusanish, Nobutada Kato, Ryuwa Makiyama, Mutsumi Ohashi, Yui Higashino, et al. Time-of-day differences in daily functioning in children with obsessive-compulsive disorder. Scientific reports. 2026
Masahiro Ishida, Yoshinori Sasaki, Masahide Usami, Yuta Yoshimura, Masaya Ito, Katsunaka Mikami, Noa Tsujii, Hiroaki Kihara, Yuriko Yanagi, Tamae Inomata, et al. Increased suicide-related behaviors, challenging behaviors, and anxiety symptoms in elementary and junior high school students after the coronavirus disease 2019 pandemic: A single-center case-control study. PSYCHIATRY AND CLINICAL NEUROSCIENCES REPORTS. 2025. 4. 4
Masahide Usami, Yoshinori Sasaki, Mayuna Ichikawa, Miki Matsudo, Ayaka Hashimoto, Shun Kusanish, Nobutada Kato, Ryuwa Makiyama, Mutsumi Ohashi, Yui Higashino, et al. Shifting strains: Parenting daily burden in girls with eating disorders-Assessed via the Questionnaire-Children with Difficulties. PCN reports : psychiatry and clinical neurosciences. 2025. 4. 3. e70180
Noa Tsujii, Hiroaki Kihara, Akiko Hiraiwa, Haruko Tachibana, Maya Ueno, Asami Takasaki, Chikako Igarashi, Naohito Kaneko, Kotoe Itagaki, Keita Yamamoto, et al. Increased use of attention-deficit/hyperactivity disorder drugs among children and adolescents with suicidal ideation: A real-world registry study in Japan. PCN reports : psychiatry and clinical neurosciences. 2025. 4. 3. e70170
