Wearable Sensor and Mobile App–Based mHealth Approach for Investigating Substance Use and Related Factors in Daily Life: Protocol for an Ecological Momentary Assessment Study

Ayumi Takano   ¹ , PhD ;   Koki Ono   ² , MPH ;   Kyosuke Nozawa   ³ , PhD ;   Makito Sato   ⁴ , PhD ;   Masaki Onuki   ⁴ , PhD ;   Jun Sese   ⁴ , PhD ;   Yosuke Yumoto   ⁵ , MD ;   Sachio Matsushita   ⁵ , MD, PhD ;   Toshihiko Matsumoto   ⁶ , MD, PhD

¹ Department of Mental Health and Psychiatric Nursing, Tokyo Medical and Dental University, Tokyo, Japan

² Department of Clinical Information Engineering, The University of Tokyo, Tokyo, Japan

³ Department of Mental Health and Psychiatric Nursing, Osaka University, Osaka, Japan

⁴ Humanome Lab, Inc, Tokyo, Japan

⁵ National Hospital Organization Kurihama Medical and Addiction Center, Yokosuka, Japan

⁶ Department of Drug Dependence Research, National Center of Neurology and Psychiatry, Tokyo, Japan