KOKI TAKAGAKI

Last Updated :2025/06/04

Affiliations, Positions
Health Service Center, Associate Professor
Web Site
https://sites.google.com/site/kokitakagaki/
E-mail
koki-takagakihiroshima-u.ac.jp

Basic Information

Major Professional Backgrounds

  • 2011/04, 2013/03, Japan Society for the promotion of Science, research fellow(DC2)
  • 2013/04/01, 2017/03/31, Department of Psychiatry and Neurosciences, Hiroshima University, researcher
  • 2017/04/01, 2018/03/31, Department of Psychiatry and Neurosciences, Hiroshima University, Researcher
  • 2018/04/01, 2023/03/31, Health Service Center, Hiroshima University, Assistant professor
  • 2023/04/01, Health Service Center, Hiroshima University, Associate Professor

Academic Degrees

  • Health Sciences University of Hokkaido
  • Health Sciences University of Hokkaido

Research Fields

  • Social sciences;Psychology;Clinicapl s ychology

Research Keywords

  • Clinical Psychology
  • cognitive behavioral therapy
  • Mood Disorder

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 3Term, Introduction to Student Wellness
  2. 2025, Undergraduate Education, 3Term, Health and Medical Psychology

Research Activities

Academic Papers

  1. ★, Validation of a Behavioral Activation Model Including Self-Compassion: A Longitudinal Study at Three Time Points, PSYCHOPATHOLOGY, 57(5), 369-376, 202410
    Link to Paper Search Results by DOI
  2. ★, Association between the Behavioral Activation Mechanism and Depression Severity: Focusing on Avoidance Patterns of University Students, BEHAVIORAL SCIENCES, 14(8), 202408
    Link to Paper Search Results by DOI
  3. ★, Relationship between Value-Based Behaviors and Scheduled Activities of University Students before and during the COVID-19 Pandemic: A Longitudinal Cross-Lagged Model, PSYCHOPATHOLOGY, 57(1), 70-75, 202402
    Link to Paper Search Results by DOI
  4. Changes in Eating Attitudes and Risk for Developing Disordered Eating Behaviors in College Students with Subthreshold Eating Disorders: A Cohort Study, PSYCHOPATHOLOGY, 56(4), 276-284, 202305
    Link to Paper Search Results by DOI
  5. Differences in the association between avoidance and environmental rewards by three symptoms of depression, CURRENT PSYCHOLOGY, 42(10), 7990-7997, 202304
    Link to Paper Search Results by DOI
  6. ★, Factors Associated with University Students' Deterioration from Subthreshold Depression to Depression before and during the COVID-19 Pandemic, BEHAVIORAL SCIENCES, 13(1), 202301
    Link to Paper Search Results by DOI
  7. Day-to-day regularity and diurnal switching of physical activity reduce depression-related behaviors: a time-series analysis of wearable device data, BMC PUBLIC HEALTH, 23(1), 20230106
    Link to Paper Search Results by DOI
  8. Trace of depression: Network structure of depressive symptoms in different clinical conditions, EUROPEAN PSYCHIATRY, 65(1), 20220311
    Link to Paper Search Results by DOI
  9. Decreased physical activity with subjective pleasure is associated with avoidance behaviors, SCIENTIFIC REPORTS, 12(1), 20220218
    Link to Paper Search Results by DOI
  10. Mediating effect of environmental rewards on the relation between goal-directed behaviour and anhedonia., Current Psychology, 40, 3651-3658, 2021
  11. ★, Do Self-Compassion Factors Affect Value-Based Behavior Promotion for Adolescents? The Context of Behavioral Activation, FRONTIERS IN PSYCHOLOGY, 12, 20211014
    Link to Paper Search Results by DOI
  12. Differences in the association between avoidance and environmental rewards by three symptoms of depression, Current Psychology, 42, 7990-7997, 2023
  13. ★, Relations among clinical factors after behavioral activation for subthreshold depression., International Journal of Cognitive Therapy., 14, 612-622, 2021
  14. ★, Roles of Trait Mindfulness in Behavioral Activation Mechanism for Patients With Major Depressive Disorder, FRONTIERS IN PSYCHOLOGY, 11, 20200429
    Link to Paper Search Results by DOI
  15. Role of coping with negative emotions in cognitive behavioral therapy for persistent somatoform pain disorder: Is it more important than pain catastrophizing?, PSYCHIATRY AND CLINICAL NEUROSCIENCES, 73(9), 560-565, 201909
    Link to Paper Search Results by DOI
  16. Predicting Ventral Striatal Activation During Reward Anticipation From Functional Connectivity at Rest, FRONTIERS IN HUMAN NEUROSCIENCE, 13, 289, 20190827
    Link to Paper Search Results by DOI
  17. Effects of behavioral activation on the neural circuit related to intrinsic motivation., BJPsych Open, 4(5), 317-323, 2018
  18. ★, Effects of behavioral activation program without psychotropic medication treatment for depression in late adolescence: Case report., Neuropsychiatric Disease and Treatment, 14, 2159-2164, 2018
  19. ★, Enduring effects of a 5-week behavioral activation program for subthreshold depression among late adolescents: an exploratory randomized controlled trial, NEUROPSYCHIATRIC DISEASE AND TREATMENT, 14, 2633-2641, 2018
    Link to Paper Search Results by DOI
  20. Effects of behavioral activation on default mode network connectivity in subthreshold depression: a preliminary resting-state fMRI study., Journal of Affective Disorders, 227, 156-163, 2018
  21. Association of perfectionistic and dependent dysfunctional attitudes with subthreshold depression., Psychology Research and Behavior Management, 10, 271-275, 2017
  22. The neural correlates of the metacognitive function of other perspective: a multiple regression analysis study., Neuroreport, 28, 671-676, 2017
  23. Effects of behavioral activation on the neural basis of other self referential processing in subthreshold depression: An fMRI study., Psychological Medicine, 47, 877-888, 2017
  24. Detailed course of depressive symptoms and risk for developing depression in late adolescents with subthreshold depression: cohort study., Neuropsychiatric Disease and Treatment, 13, 25-33, 2017
  25. ★, Mechanisms of behavioral activation for late adolescents: Positive reinforcement mediate the relationship between activation and depressive symptoms from pre-treatment to post-treatment., Journal of Affective Disorders, 204, 70-73, 2016
  26. ★, Behavioral activation for late adolescents with subthreshold depression: a randomized controlled trial., European Child & Adolescent Psychiatry, 25, 1171-1182, 2016
  27. Behavioral activation can normalize neural hypoactivation in subthreshold depression during a monetary incentive delay task., Journal of Affective Disorders, 189, 254-262, 2016
  28. Direct and indirect influence of childhood abuse on depressive symptoms in patients with major depressive disorder., BMC Psychiatry, 15, 224, 2015
  29. Do individuals with alcohol dependence show higher unfairness sensitivity? The relationship between impulsivity and unfairness sensitivity in alcohol dependent adults., Alcoholism: Clinical and Experimental Research, 39, 2016-2021, 2015
  30. Effectiveness of group cognitive behavioral therapy (GCBT) for somatoform pain disorder patients in Japan: A preliminary non-case-control study., Psychiatry and Clinical Neuroscience, 69, 763-772, 2015
  31. fMRI study of social anxiety during social ostracism with and without emotional support., Plos One, e0127426., 2015
  32. ★, Behavioral characteristics of subthreshold depression., Journal of Affective Disorders,, 168, 472-475, 2014
  33. ★, Preliminary assessment of the behavioral activation model in Japanese undergraduate students, Psychological Reports, 112, 47-59, 2013

Invited Lecture, Oral Presentation, Poster Presentation

  1. Development of behavioral modification program based on personalized value for late adolescents with depression, Takagaki, K., Yokoyama, S., Okamoto, Y., International Symposium on Adolescent Health and Personalized Value., 2018, With Invitation, English

Social Activities

History as Peer Reviews of Academic Papers

  1. 2018, European Child & Adolescent Psychiatry
  2. 2019, The Japanese Psychological Research
  3. 2019, Journal of Affective Disorders
  4. 2020, The Japanese Psychological Research
  5. 2020, Journal of Affective Disorders