Objectives: ：An increasing number of people are affected by sleep problems every year. The current study presents findings from experiments that utilize a mobile application-based cognitive-behavioral treatment for insomnia (CBT-I). Methods: ：Our application aims to alleviate insomnia symptoms by providing real-time and direct interventions in people’s daily lives. We recruited 50 participants to test the effectiveness of the app via a six-week-long prospective experiment. Results: ：We find that insomnia symptoms are reduced significantly for both the treatment group, who used the app, and the control group, who watched educational videos [F(2,39)=60.82, p<0.001]. Sleep efficiency improved more quickly in the treatment group than in the control group. Participants who followed higher compliance to the intervention reduced their wake after sleep onset (WASO) time more substantially. Conclusion ：Our results suggest that app-based CBT-I interventions may have additional benefits for enhancing objective sleep quality, including sleep efficiency or WASO, compared to sleep hygiene education. The preliminary findings of the current research shed light on future mobile intervention apps’ design choices for insomnia.

Objectives: ：Maltreatment is one of representative risk factor for psychiatric illnesses. While several studies indicate the relationship between physical activity and maltreatment, there was lack of study using objective measurements. This study was conducted to find the biomarkers of physical activity related to maltreatment experiences in healthy adults using wearable device. Methods: ：A total of 60 healthy adults were recruited; 15 subjects reported maltreatment experiences. Physical activity and sleep data were collected using Fitbit for 2 weeks. Child maltreatment experiences were assessed by Adverse Childhood Experiences (ACE). Symptoms were measured using the Insomnia Severity Index (ISI), Morningness-Eveningness Questionnaire (MEQ), Patient Health Questionnaire-9 (PHQ-9), and Generalized Anxiety Disorder-7 (GAD-7). Results: ：The child maltreatment group showed lower movement distance (p=0.025) and number of walks (p=0.010) compared to the control group. After controlling for anxiety and depressive symptoms in women, maltreatment group represented significant reduction in light activities (p=0.021) as well as movement distance (p=0.024) and number of walks (p=0.011). There was no significant difference in sleep variables between the two groups. Conclusions ：Even in healthy participants, maltreatment experiences can negatively affect daily light physical activity.

No abstract available.