depressive disorder, anxiety disorder
Conditions
Interventions
Images of green natural environments such as forest, countryside, etc. are presented on a 27-inch high-resolution display for 3 minutes.
Images of artificial environments such as cities are presented
Sponsors
Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1) Being diagnosed as having a depressive disorder or anxiety disorder based on DSM-5. 2) Age is 20 to 65 at the time of obtaining consent. 3) No color vision deficiency and having visual acuity (corrected visual acuity is also possible) of 0.6 or more, or no effect of vision problems on daily activities, by self-declaration (colored glasses are not allowed). 4) Right-handed. 5) A person who, after receiving a sufficient explanation before participating in this research, has a sufficient understanding and provided informed consent.
Exclusion criteria
Exclusion criteria: 1) Having strong suicide ideation. 2) Those who are judged to be unsuitable as research subjects by the researcher in charge of the experimental sessions (for example, those who cannot conduct the experiments smoothly due to physical illness).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1) Mood immediate after intervention evaluated by visual analog scale 2) Brain activations during intervention as evaluated by NIRS | — |
Secondary
| Measure | Time frame |
|---|---|
| 1) Heart rate and heart rate variability during intervention 2) The association between mood and brain activations 3) The influence of personal characteristics such as mental health states and cognitive functions on the effect of viewing the image of natural environment (eg, the more severe the depression, the greater the effect of viewing images) 4) Relationships among other personal characteristics | — |
Countries
Japan
Contacts
Public ContactChong Chen
Yamaguchi University Graduate School of Medicine Division of Neuropsychiatry, Department of Neuroscience
Outcome results
None listed