UMIN-CTR Clinical Trial
| Unique ID issued by UMIN | UMIN000034012 |
|---|---|
| Receipt number | R000038779 |
| Scientific Title | The effects of visual stimulation in the form of interior wall images of knotted or knot-free wood using a large plasma display: Crossover test |
| Date of disclosure of the study information | 2018/09/03 |
| Last modified on | 2021/09/06 10:11:03 |
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Basic information
Public title
The effects of visual stimulation in the form of interior wall images of knotted or knot-free wood using a large plasma display: Crossover test
Acronym
Visual stimulation effects of images of knotted or knot-free wood using a large plasma display
Scientific Title
The effects of visual stimulation in the form of interior wall images of knotted or knot-free wood using a large plasma display: Crossover test
Scientific Title:Acronym
Visual stimulation effects of images of knotted or knot-free wood using a large plasma display
Region
| Japan |
Condition
Condition
Healthy person
Classification by specialty
| Adult |
Classification by malignancy
Others
Genomic information
NO
Objectives
Narrative objectives1
We aim to clarify the psychological and physiological effects of visual stimulation provided by images of interior walls comprising knotted or knot-free wood using a large plasma display in 20 female university students.
Basic objectives2
Efficacy
Basic objectives -Others
Trial characteristics_1
Trial characteristics_2
Developmental phase
Assessment
Primary outcomes
1) Prefrontal activity using near-infrared spectroscopy
2) Sympathetic and parasympathetic nervous activity as indicated by heart rate variability
3) Heart rate
Key secondary outcomes
1) Profile of Mood State
2) Modified semantic differential method
3) Kwansei Gakuin (KG) daily life questionnaire
4) Trait Anxiety of State-Trait Anxiety Inventory
Base
Study type
Interventional
Study design
Basic design
Cross-over
Randomization
Randomized
Randomization unit
Individual
Blinding
Open -no one is blinded
Control
Placebo
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment
Intervention
No. of arms
6
Purpose of intervention
Prevention
Type of intervention
| Other |
Interventions/Control_1
Visual stimulation using an interior wall image of knotted wood (90 s) -> Washout period -> Visual stimulation using an interior wall image of knot-free wood (90 s) -> Washout period -> Visual stimulation using a gray image (90 s)
Interventions/Control_2
Visual stimulation using an interior wall image of knotted wood (90 s) -> Washout period -> Visual stimulation using a gray image (90 s) -> Washout period -> Visual stimulation using an interior wall image of knot-free wood (90 s)
Interventions/Control_3
Visual stimulation using an interior wall image of knot-free wood (90 s) -> Washout period -> Visual stimulation using an interior wall image of knotted wood (90 s) -> Washout period -> Visual stimulation using a gray image (90 s)
Interventions/Control_4
Visual stimulation using an interior wall image of knot-free wood (90 s) -> Washout period -> Visual stimulation using a gray image (90 s) -> Washout period -> Visual stimulation using an interior wall image of knotted wood (90 s)
Interventions/Control_5
Visual stimulation using a gray image (90 s) -> Washout period -> Visual stimulation using an interior wall image of knotted wood (90 s) -> Washout period -> Visual stimulation using an interior wall image of knot-free wood (90 s)
Interventions/Control_6
Visual stimulation using a gray image (90 s) -> Washout period -> Visual stimulation using an interior wall image of knot-free wood (90 s) -> Washout period -> Visual stimulation using an interior wall image of knotted wood (90 s)
Interventions/Control_7
Interventions/Control_8
Interventions/Control_9
Interventions/Control_10
Eligibility
Age-lower limit
| 20 | years-old | <= |
Age-upper limit
| 30 | years-old | > |
Gender
Female
Key inclusion criteria
Healthy person
Key exclusion criteria
1) Subjects who are in a poor physical condition
2) Subjects who have a respiratory illness
3) Subjects deemed inappropriate to participate in this study by the principle investigator
4) Subjects with menstruation during the study period
5) Subjects with visual acuity of <20/100 in both eyes
Target sample size
30
Research contact person
Name of lead principal investigator
| 1st name | Yoshifumi |
| Middle name | |
| Last name | Miyazaki |
Organization
Center for Environment, Health and Field Sciences, Chiba University
Division name
Natural Therapy Laboratory
Zip code
277-0882
Address
6-2-1 Kashiwa-no-ha, Kashiwa, Chiba 277-0882, Japan
TEL
04-7137-8113
ymiyazaki@faculty.chiba-u.jp
Public contact
Name of contact person
| 1st name | Yoshifumi |
| Middle name | |
| Last name | Miyazaki |
Organization
Center for Environment, Health and Field Sciences, Chiba University
Division name
Natural Therapy Laboratory
Zip code
277-0882
Address
6-2-1 Kashiwa-no-ha, Kashiwa, Chiba 277-0882, Japan
TEL
04-7137-8113
Homepage URL
http://www.fc.chiba-u.jp/research/miyazaki/index.html
ymiyazaki@faculty.chiba-u.jp
Sponsor or person
Institute
Center for Environment, Health and Field Sciences, Chiba University
Institute
Department
Personal name
Funding Source
Organization
Tokyo wood cooperatives
Organization
Division
Category of Funding Organization
Other
Nationality of Funding Organization
Other related organizations
Co-sponsor
1) Forestry and Forest Products Research Institute
2) Kyoto University
Name of secondary funder(s)
IRB Contact (For public release)
Organization
The Ethics Committee of the Center for Environment, Health and Field Sciences, Chiba University
Address
6-2-1 Kashiwa-no-ha, Kashiwa, Chiba 277-0882, Japan
Tel
04-7137-8010
field-rinri@chiba-u.jp
Secondary IDs
Secondary IDs
NO
Study ID_1
Org. issuing International ID_1
Study ID_2
Org. issuing International ID_2
IND to MHLW
Institutions
Institutions
Other administrative information
Date of disclosure of the study information
| 2018 | Year | 09 | Month | 03 | Day |
Related information
URL releasing protocol
https://www.mdpi.com/2071-1050/12/23/9898
Publication of results
Published
Result
URL related to results and publications
https://www.mdpi.com/2071-1050/12/23/9898
Number of participants that the trial has enrolled
28
Results
The knotty wood sedated the right prefrontal cortex activity compared with the control and enhanced parasympathetic nerve activity compared with before stimulation. Clear wood sedated the left prefrontal cortex activity compared with the control and suppressed sympathetic nerve activity compared with before stimulation.
Results date posted
| 2021 | Year | 09 | Month | 06 | Day |
Results Delayed
Results Delay Reason
Date of the first journal publication of results
| 2020 | Year | 11 | Month | 23 | Day |
Baseline Characteristics
Female university students
Participant flow
Key exclusion criteria
1) Subjects who are in a poor physical condition
2) Subjects who have a respiratory illness
3) Subjects deemed inappropriate to participate in this study by the principle investigator
4) Subjects with menstruation during the study period
5) Subjects with visual acuity of <20/100 in both eyes
Adverse events
None
Outcome measures
1) Prefrontal activity using near-infrared spectroscopy
2) Sympathetic and parasympathetic nervous system activity as indicated by heart rate variability
3) Heart rate
4) Profile of Mood State
5) Modified semantic differential method
6) Kwansei Gakuin (KG) daily life questionnaire
7) Trait Anxiety of State-Trait Anxiety Inventory
Plan to share IPD
IPD sharing Plan description
Progress
Recruitment status
Main results already published
Date of protocol fixation
| 2018 | Year | 09 | Month | 03 | Day |
Date of IRB
| 2018 | Year | 08 | Month | 20 | Day |
Anticipated trial start date
| 2018 | Year | 09 | Month | 03 | Day |
Last follow-up date
| 2018 | Year | 09 | Month | 13 | Day |
Date of closure to data entry
| 2019 | Year | 01 | Month | 11 | Day |
Date trial data considered complete
| 2020 | Year | 08 | Month | 13 | Day |
Date analysis concluded
| 2020 | Year | 08 | Month | 13 | Day |
Other
Other related information
Management information
Registered date
| 2018 | Year | 09 | Month | 03 | Day |
Last modified on
| 2021 | Year | 09 | Month | 06 | Day |
Link to view the page
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000038779
