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Name:
UMIN ID:

Recruitment status Preinitiation
Unique ID issued by UMIN UMIN000034294
Receipt No. R000039094
Scientific Title The influence of contact with plants and visual stimulation with images of the natural environment on decision-making
Date of disclosure of the study information 2018/09/28
Last modified on 2018/09/27

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Basic information
Public title The influence of contact with plants and visual stimulation with images of the natural environment on decision-making
Acronym The influence of nature contact on decision-making
Scientific Title The influence of contact with plants and visual stimulation with images of the natural environment on decision-making
Scientific Title:Acronym The influence of nature contact on decision-making
Region
Japan

Condition
Condition Not applicable
Classification by specialty
Adult
Classification by malignancy Others
Genomic information NO

Objectives
Narrative objectives1 To investigate how potted plants and images of the natural environment affect decision-making in adults, through looking at behavioral and neural indices.
Basic objectives2 Others
Basic objectives -Others Psychological effects
Trial characteristics_1 Exploratory
Trial characteristics_2
Developmental phase

Assessment
Primary outcomes 1) Performance on decision-making tasks
2) Behavioral parameters estimated from the decision-making tasks
3) Brain activation and heart rate variability during decision-making tasks
Key secondary outcomes

Base
Study type Interventional

Study design
Basic design Cross-over
Randomization Randomized
Randomization unit Individual
Blinding Double blind -all involved are blinded
Control Placebo
Stratification
Dynamic allocation
Institution consideration
Blocking
Concealment

Intervention
No. of arms 2
Purpose of intervention Treatment
Type of intervention
Other
Interventions/Control_1 A potted-plants-transferring task is used for intervention, whereas a pot-transferring task with pots of the same weight but without plants is used for the control task. Plants intervention and control intervention are crossoverred between subjects.
Interventions/Control_2 Images of the natural environment vs urban scenes. Intervention with images of nature and intervention with control images are crossoverred between subjects.
Interventions/Control_3
Interventions/Control_4
Interventions/Control_5
Interventions/Control_6
Interventions/Control_7
Interventions/Control_8
Interventions/Control_9
Interventions/Control_10

Eligibility
Age-lower limit
20 years-old <=
Age-upper limit
70 years-old >=
Gender Male and Female
Key inclusion criteria 1) By self-declaration, those with visual acuity (corrective visual acuity is acceptable) of 0.6 or more (colored eyeglasses or color contacts not allowed) and without any color vision disorder.
2) Persons who signed written consent by their free will with sufficient understanding after receiving sufficient explanation for the participation of this research.
Key exclusion criteria 1) By self-declaration, persons who have mental disorders and serious physical disorders, past history of neurodegenerative diseases, or are currently under treatment.
2) By self-declaration, persons whose first-degree relatives have any history of mental illness.
3) Despite self-declaring that there is no history of mental illness, persons who are judged to have a mental illness with an interview by a research staff (using MINI).
Target sample size 180

Research contact person
Name of lead principal investigator
1st name
Middle name
Last name Shin Nakagawa
Organization Yamaguchi University Graduate School of Medicine
Division name Division of Neuropsychiatry
Zip code
Address MinamiKogushi 1-1-1, Ube
TEL 0836-22-2255
Email brain@yamaguchi-u.ac.jp

Public contact
Name of contact person
1st name
Middle name
Last name Chong Chen
Organization Yamaguchi University Graduate School of Medicine
Division name Division of Neuropsychiatry
Zip code
Address MinamiKogushi 1-1-1, Ube
TEL 0836-22-2255
Homepage URL
Email brain@yamaguchi-u.ac.jp

Sponsor
Institute Yamaguchi University Graduate School of Medicine, Division of Neuropsychiatry
Institute
Department

Funding Source
Organization Self funding
Organization
Division
Category of Funding Organization Self funding
Nationality of Funding Organization

Other related organizations
Co-sponsor
Name of secondary funder(s)

IRB Contact (For public release)
Organization
Address
Tel
Email

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 28 Day

Related information
URL releasing protocol
Publication of results Unpublished

Result
URL related to results and publications
Number of participants that the trial has enrolled
Results
Results date posted
Results Delayed
Results Delay Reason
Date of the first journal publication of results
Baseline Characteristics
Participant flow
Adverse events
Outcome measures
Plan to share IPD
IPD sharing Plan description

Progress
Recruitment status Preinitiation
Date of protocol fixation
2018 Year 09 Month 26 Day
Date of IRB
Anticipated trial start date
2018 Year 10 Month 01 Day
Last follow-up date
Date of closure to data entry
Date trial data considered complete
Date analysis concluded

Other
Other related information

Management information
Registered date
2018 Year 09 Month 27 Day
Last modified on
2018 Year 09 Month 27 Day


Link to view the page
URL(English) https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000039094

Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name


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