Effects of Natural Sounds on Attention Restoration Outdoors

Heart Rate Variability Clinical Trial

— NEO  

Official title:

Effects of Natural Sounds on Attention Restoration Outdoors

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05679882
• Other study ID #: COT-V4-2020-1-S004
• Status: Recruiting
• Phase: N/A
• Start date: October 24, 2022
• Est. completion date: May 15, 2023

Study information

• Verified date: March 2023
• Source: Nanyang Technological University
• Contact: Kar Fye Alvin Lee, PhD
• Phone: +6591557981
• Email: alvin.lee[@]ntu.edu.sg
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This study aims to examine whether listening to natural sounds in a noisy outdoor environment compared to no natural sounds influences behavioural, cognitive, affective, and physiological markers.

Description:

The investigators hypothesize that listening to natural sounds has restorative effects on attention by supporting greater use of involuntary attention. This generates the prediction that exposure to natural sounds in the context of a noisy outdoor environment will have greater restorative effects on attention (i.e., physiological, affective, cognitive, and behavioural) as compared to the control group (exposed to environmental noise only). Individual differences (i.e., age, gender, caffeine and food intake, body mass index, skin temperature, noise sensitivity, sleep quality, baseline physiology and behavioural performance) will be examined and accounted for. Environmental factors (i.e., outdoor humidity, temperature, and noise) will also be accounted for.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 60
• Est. completion date: May 15, 2023
• Est. primary completion date: March 15, 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 35 Years

Eligibility

Inclusion Criteria:

• Singapore-based
• Non-clinical
• 18-35years

Exclusion Criteria:

• Individuals with hearing difficulties or failing to meet the minimal threshold for normal hearing
• Individuals with a history of ear, developmental, neurological, or psychiatric disorder

Related Conditions & MeSH terms

• Cognitive Fatigue
• Fatigue
• Heart Rate Variability
• Mental Fatigue
• Working Memory

Intervention

Other:
• Masking Sounds
Masking sounds will be played from outdoor speakers.
• No Masking Sounds
No masking sounds will be played from outdoor speakers.

Locations

Country	Name	City	State
Singapore	Cultural Science Innovations, Nanyang Technological University	Singapore

Sponsors (4)

Lead Sponsor	Collaborator
Nanyang Technological University	Housing and Development Board, Singapore, Ministry of National Development, Singapore, National Research Foundation, Singapore

Country where clinical trial is conducted

Singapore, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Reverse Corsi Task (Change)	Change in Span and Reaction Time	baseline and up to 60 mins after sound intervention
Primary	Go/NoGo Task (Change)	Change in Accuracy and Reaction Time	baseline and up to 60 mins after sound intervention
Primary	Change in Heart Rate Variability	Electrocardiograph and photoplethysmograph (Change)	1 day (during fatiguing task and sound intervention)
Primary	Positive and Negative Affect Schedule - Expanded Form	Positive and Negative Affect Score	up to 60 mins after sound intervention
Primary	Fatigue State Questionnaire (Change)	Change in Fatigue State Questionnaire Score	baseline and up to 60 mins after sound intervention
Secondary	Perceived Restorativeness Soundscape Scale	Perceived Restorativeness Soundscape Scale Score	up to 60 mins after sound intervention