Koki Takagaki1, Yasumasa Okamoto2, Ran Jinnin3, Asako Mori2, Yoshiko Nishiyama2, Takanao Yamamura2, Yoshitake Takebayashi4, Akiko Ogata5, Yuri Okamoto6, Yoshie Miyake6, Haruki Shimoda7, Norito Kawakami7, Shigeto Yamawaki2. 1. Department of Psychiatry and Neurosciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan. Electronic address: koki.takagaki@gmail.com. 2. Department of Psychiatry and Neurosciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan. 3. Department of Psychiatry and Neurosciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8551, Japan; Health Service Center, Hiroshima University, Japan. 4. Graduate school of Integrated Arts and Sciences, Hiroshima University, Japan. 5. Department of Psychology, Hiroshima University, Japan. 6. Health Service Center, Hiroshima University, Japan. 7. Department of Mental Health, The University of Tokyo, Japan.
Abstract
BACKGROUND: This study examines differences in behavioral characteristics among individuals who are not depressed and individuals with subthreshold depression, and depression. METHODS: We conducted structured interviews with 111 undergraduate students, who also completed self-report scales. The participants were divided into a non-depression group, a subthreshold depression group, and a depression group based on results of the structured interview and the BDI-II. RESULTS: There were significant differences in avoidance between depression group and other two groups. Also, for the environmental rewards, there were significant difference between the non-depressed group and the other two groups. LIMITATIONS: The sample of depressed participants was small. The overall sample consisted only undergraduate students. CONCLUSIONS: This study reported that there are different behavioral characteristics among non-depression, subthreshold depression, and depression groups. Whereas depression group is characterized by high frequency of avoidance and low environmental rewards, subthreshold depression group is characterized by only low environmental rewards.
BACKGROUND: This study examines differences in behavioral characteristics among individuals who are not depressed and individuals with subthreshold depression, and depression. METHODS: We conducted structured interviews with 111 undergraduate students, who also completed self-report scales. The participants were divided into a non-depression group, a subthreshold depression group, and a depression group based on results of the structured interview and the BDI-II. RESULTS: There were significant differences in avoidance between depression group and other two groups. Also, for the environmental rewards, there were significant difference between the non-depressed group and the other two groups. LIMITATIONS: The sample of depressed participants was small. The overall sample consisted only undergraduate students. CONCLUSIONS: This study reported that there are different behavioral characteristics among non-depression, subthreshold depression, and depression groups. Whereas depression group is characterized by high frequency of avoidance and low environmental rewards, subthreshold depression group is characterized by only low environmental rewards.