UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000060629
Receipt number R000069343
Scientific Title The relationship between stimulus danger and attentional effects
Date of disclosure of the study information 2026/02/09
Last modified on 2026/02/09 16:44:10

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Basic information

Public title

The relationship between stimulus danger and attentional effects

Acronym

The relationship between stimulus danger and attentional effects

Scientific Title

The relationship between stimulus danger and attentional effects

Scientific Title:Acronym

The relationship between stimulus danger and attentional effects

Region

Japan


Condition

Condition

healthy adults

Classification by specialty

Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Even after injury healing, athletes may experience persistent pain and be forced to withdraw from training for extended periods. We hypothesize that one of the causes of this is an overactive attentional function resulting from injury.

It has been reported that paying attention to noxious stimuli increases subjective pain and neural activity. However, there is evidence that attention to weak stimuli does not increase neural activity in the somatosensory cortex. This is thought to be because attention in the somatosensory cortex suppresses safe information and enhances only dangerous information. Therefore, we hypothesize that chronic pain in athletes that persists after injury healing may be caused by a breakdown in attentional function, resulting in excessive attention to mild stimuli that would not normally be perceived as painful. Therefore, this study aimed to examine the relationship between normal attentional function and neural activity in healthy individuals, providing baseline data for future research into athletes with chronic pain.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

In this study, healthy athletes were presented with noxious thermal stimuli and non-noxious electrical stimuli, and neural activity was measured using electroencephalography (EEG).
In addition, the relationship to subjective pain was assessed using a visual analog scale (VAS).
This will provide baseline data on the relationship between normal attentional function and neural activity in healthy individuals. The findings are expected to provide a foundation for future interpretation of the relationship between attentional function and neural activity in athletes with chronic pain.

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

Thermal stimulation
Cold stimulation
Electrical stimulation
Electroencephalogram

Interventions/Control_2


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

18 years-old <=

Age-upper limit

24 years-old >=

Gender

Male and Female

Key inclusion criteria

Healthy male and female athletes without pain lasting more than 3 months
Right-handed
No history of mental illness or neurological disorders

Key exclusion criteria

Individuals experiencing pain lasting three months or longer
Left-handed individuals
Individuals with a history of mental or neurological disorders

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Moka
Middle name
Last name Hoshiba

Organization

Niigata University of Health and Welfare Graduate School

Division name

Health Science Major, Health and Sports Science Field

Zip code

950-3198

Address

1398 Shimami-cho, Kita Ward, Niigata City, Niigata Prefecture

TEL

025-257-4455

Email

wtm25012@nuhw.ac.jp


Public contact

Name of contact person

1st name Kouya
Middle name
Last name Yamashiro

Organization

Niigata University of Health and Welfare

Division name

Health and Sports Department

Zip code

950-3198

Address

1398 Shimami-cho, Kita Ward, Niigata City, Niigata Prefecture

TEL

025-257-4757

Homepage URL


Email

yamashiro@nuhw.ac.jp


Sponsor or person

Institute

Niigata University of Health and Welfare

Institute

Department

Personal name



Funding Source

Organization

Niigata University of Health and Welfare

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Niigata University of Health and Welfare

Address

1398 Shimami-cho, Kita Ward, Niigata City, Niigata Prefecture

Tel

025-257-4455

Email

wtm25012@nuhw.ac.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

2026 Year 02 Month 09 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

2026 Year 02 Month 09 Day

Date of IRB


Anticipated trial start date

2026 Year 02 Month 16 Day

Last follow-up date

2026 Year 10 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 02 Month 09 Day

Last modified on

2026 Year 02 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000069343