The relaxing effect by viewing images of natural environment

Not Applicable

• Conditions: na

• Registration Number: JPRN-UMIN000041123
• Lead Sponsor: Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine

Brief Summary

Viewing images of nature significantly increased comfortableness and relaxation compared to viewing images of built environments. Meanwhile, the concentration of oxy-Hb in the right OFC significantly decreased while viewing the images of nature compared to built environments.

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2020-07-20
• Study Completion: 2022-03-31
• Last Update Posted: 17 October 2023

Recruitment & Eligibility

• Status: Complete: follow-up complete
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

Not provided

Exclusion Criteria

1) Those who are currently suffering from a mental illness or are currently undergoing medical examination (including those who are scheduled to undergo medical examination) by self-declaration. 2) Staff of our department who receive the personnel evaluation directly by the principal investigator of this study. 3) Those who are judged to be unsuitable as research subjects by the researcher in charge of the experimental sessions (for example, those who have participated in the pilot study of this research).

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
1) Current mood evaluated by the visual analog scale 2) Brain activation as evaluated by NIRS during image viewing

Secondary Outcome Measures

Name	Time	Method
1) Comparison of heart rate and heart rate variability when viewing images of natural vs artificial environments 2) Identification of brain regions closely related to the relaxing effects of viewing images in the natural environment 3) The influence of personal characteristics such as mental health states and cognitive functions on the effect of viewing the image in the natural environment and the identification of its neural basis (eg, the more severe the depression, the greater the effect of viewing the image in the natural environment. ) 4) Relationships among other personal characteristics