Visual and Acoustic Effects of Human Thermal Comfort and Perception in a Micro-Climatically Steady Environment
Trial Snapshot
- Phase
- Not Applicable
- Status
- Withdrawn
- Enrollment
- 120
- Locations
- 2
- Primary Endpoint
- Change in blood pressure
Study Overview
Brief Summary
The goal of this clinical trial is to understand how environmental factors influence comfort and health. The main question it aims to answer is:
- do temperature, visuals, and sounds affect a person's physiology and perception?
Participants will watch short videos in 2 different climate-controlled environments and provide feedback on their thermal experiences.
Detailed Description
Participants will engage in a series of sessions in a climate-controlled environment, where researchers will manipulate temperature, visuals, and sounds to study their effects on various physiological measurements, including blood pressure, pulse rate, core temperature, and skin temperature. The study will take place in two distinct chambers, with each chamber designed to allow for precise control of environmental variables. Participants will be asked to watch short video clips in different thermal environments and provide feedback on their thermal experiences.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Basic Science
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 40 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- Yes
Inclusion Criteria
- •Age 18-40 years
- •BMI between 18-27.5 kg/m²
- •No history of color blindness or sensory impairments
- •Normal chronotype (consistent sleep-wake patterns)
- •Must have lived in or near Guangzhou, China for at least two months prior to participation
Exclusion Criteria
- •Children (age under 18), elders (age > 60)
- •People with obesity
- •People with a history of color blindness
- •People without a consistent sleep-awake pattern
- •People with limited English proficiency
Arms & Interventions
Climate-controlled chamber
Participants will be in a climate-controlled chamber. Temperature will vary by 5 degrees both warmer and colder.
Intervention: Visual stimulation (Other)
Climate-controlled chamber
Participants will be in a climate-controlled chamber. Temperature will vary by 5 degrees both warmer and colder.
Intervention: Acoustic stimulation (Other)
Climate-controlled chamber
Participants will be in a climate-controlled chamber. Temperature will vary by 5 degrees both warmer and colder.
Intervention: Combination (Other)
Outcomes
Primary Outcomes
Change in blood pressure
Time Frame: Baseline to 90 minutes
Measured using an automatic blood pressure monitor
Change in core temperature
Time Frame: Baseline to 90 minutes
Measured using CORE core temperature device.
Change in thermal perception
Time Frame: Baseline to 90 minutes
Thermal comfort will be assessed using a visual analogue scale (VAS) to measure perceptions of thermal sensation, preference, comfort, pleasantness, and self-perceived shivering. The thermal acceptance of the environment will be rated on a binary scale (acceptable/unacceptable).
Change in pulse rate
Time Frame: Baseline to 90 minutes
Pulse will be measured using the Empatica Plus 4
Change in skin temperature
Time Frame: Baseline to 90 minutes
Skin temperature will be measured at 14 sites using iButtons (DS1922L)
Secondary Outcomes
No secondary outcomes reported