Characterization of Eye Movement Behaviour and Pupil Size Through Eye-tracking in Natural Outdoor and Indoor Scenes
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Light Sensitivity
- Sponsor
- Technical University of Munich
- Enrollment
- 24
- Locations
- 1
- Primary Endpoint
- Saccade amplitude - Indoor scene 1
- Status
- Recruiting
- Last Updated
- 2 years ago
Overview
Brief Summary
In this study, the researchers will be using eye tracking and detailed lighting measurements to understand how different types of indoor and outdoor lighting affect the eye movements and pupil sizes of our participants. Participants will be paired up and undergo six eye tracking sessions, split across two appointments. Each appointment will involve viewing either indoor or outdoor scenes, and before each session, participants will spend time adapting to the lighting conditions. Overall, each participant will spend 24 minutes being tracked, and the entire study will take about 2-3 hours to complete. The investigators expect differences in eye movements and pupil size between indoor and outdoor scenes.
Investigators
Manuel Spitschan
Assistant Professor of Chronobiology & Health
Technical University of Munich
Eligibility Criteria
Inclusion Criteria
- •No previous eye-surgeries or ocular impairments like anisometropia, amblyopia, strabism, cataract, watery eyes or hanging eye lids
- •Normal or corrected-to-normal visual acuity (+3dpt. to -5dpt.)
- •Normal colour vision
- •Normal binocular vision
Exclusion Criteria
- •Any use of medications or drugs that influence photosensitivity or the ability to concentrate
- •Excessive alcohol and/or drug use
- •Presence of psychiatric disorders
- •Poor sleep quality
- •Diagnosed with epilepsy
Outcomes
Primary Outcomes
Saccade amplitude - Indoor scene 1
Time Frame: Baseline
Mean angular distance traveled \[°\]
Saccade amplitude - Outdoor scene 1
Time Frame: Baseline
Mean angular distance traveled \[°\]
Melanopic irradiance - Indoor scene 2
Time Frame: Baseline
Irradiance \[W/(sqm\*nm)\]
Melanopic irradiance - Outdoor scene 1
Time Frame: Baseline
Irradiance \[W/(sqm\*nm)\]
Saccade frequency - Outdoor scene 1
Time Frame: Baseline
Number per second \[n/s\]
Saccade frequency - Outdoor scene 3
Time Frame: Baseline
Number per second \[n/s\]
Saccade amplitude - Indoor scene 2
Time Frame: Baseline
Mean angular distance traveled \[°\]
Saccade velocity - Outdoor scene 2
Time Frame: Baseline
Mean peak velocity \[°/s\]
Fixation duration - Outdoor scene 1
Time Frame: Baseline
Mean fixation duration \[s\]
Fixation duration - Outdoor scene 2
Time Frame: Baseline
Mean fixation duration \[s\]
Fixation frequency - Outdoor scene 1
Time Frame: Baseline
Number per minute \[n/min\]
Pupil size - Indoor scene 2
Time Frame: Baseline
Mean pupil size \[mm\]
Pupil size - Outdoor scene 3
Time Frame: Baseline
Mean pupil size \[mm\]
Saccade frequency - Indoor scene 2
Time Frame: Baseline
Number per second \[n/s\]
Saccade frequency - Indoor scene 3
Time Frame: Baseline
Number per second \[n/s\]
Saccade amplitude - Outdoor scene 2
Time Frame: Baseline
Mean angular distance traveled \[°\]
Fixation duration - Outdoor scene 3
Time Frame: Baseline
Mean fixation duration \[s\]
Photopic illuminance - Outdoor scene 3
Time Frame: Baseline
Illuminance \[lux\]
Saccade frequency - Outdoor scene 2
Time Frame: Baseline
Number per second \[n/s\]
Photopic illuminance - Indoor scene 2
Time Frame: Baseline
Illuminance \[lux\]
Saccade frequency - Indoor scene 1
Time Frame: Baseline
Number per second \[n/s\]
Saccade amplitude - Outdoor scene 3
Time Frame: Baseline
Mean angular distance traveled \[°\]
Fixation duration - Indoor scene 2
Time Frame: Baseline
Mean fixation duration \[s\]
Fixation duration - Indoor scene 3
Time Frame: Baseline
Mean fixation duration \[s\]
Pupil size - Indoor scene 1
Time Frame: Baseline
Mean pupil size \[mm\]
Pupil size - Outdoor scene 2
Time Frame: Baseline
Mean pupil size \[mm\]
Saccade amplitude - Indoor scene 3
Time Frame: Baseline
Mean angular distance traveled \[°\]
Saccade velocity - Indoor scene 3
Time Frame: Baseline
Mean peak velocity \[°/s\]
Saccade velocity - Outdoor scene 3
Time Frame: Baseline
Mean peak velocity \[°/s\]
Fixation duration - Indoor scene 1
Time Frame: Baseline
Mean fixation duration \[s\]
Fixation frequency - Indoor scene 3
Time Frame: Baseline
Number per minute \[n/min\]
Photopic illuminance - Outdoor scene 1
Time Frame: Baseline
Illuminance \[lux\]
Photopic illuminance - Outdoor scene 2
Time Frame: Baseline
Illuminance \[lux\]
Saccade velocity - Indoor scene 1
Time Frame: Baseline
Mean peak velocity \[°/s\]
Saccade velocity - Indoor scene 2
Time Frame: Baseline
Mean peak velocity \[°/s\]
Saccade velocity - Outdoor scene 1
Time Frame: Baseline
Mean peak velocity \[°/s\]
Fixation frequency - Indoor scene 1
Time Frame: Baseline
Number per minute \[n/min\]
Fixation frequency - Indoor scene 2
Time Frame: Baseline
Number per minute \[n/min\]
Fixation frequency - Outdoor scene 2
Time Frame: Baseline
Number per minute \[n/min\]
Fixation frequency - Outdoor scene 3
Time Frame: Baseline
Number per minute \[n/min\]
Photopic illuminance - Indoor scene 1
Time Frame: Baseline
Illuminance \[lux\]
Pupil size - Indoor scene 3
Time Frame: Baseline
Mean pupil size \[mm\]
Pupil size - Outdoor scene 1
Time Frame: Baseline
Mean pupil size \[mm\]
Melanopic irradiance - Indoor scene 3
Time Frame: Baseline
Irradiance \[W/(sqm\*nm)\]
Melanopic irradiance - Outdoor scene 2
Time Frame: Baseline
Irradiance \[W/(sqm\*nm)\]
Photopic illuminance - Indoor scene 3
Time Frame: Baseline
Illuminance \[lux\]
Melanopic irradiance - Indoor scene 1
Time Frame: Baseline
Irradiance \[W/(sqm\*nm)\]
Melanopic irradiance - Outdoor scene 3
Time Frame: Baseline
Irradiance \[W/(sqm\*nm)\]
Secondary Outcomes
- Ambient temperature - Outdoor scene 2(Baseline)
- Ambient temperature - Outdoor scene 3(Baseline)
- Subjective scene ratings - Indoor scene 3(Baseline)
- Geographical scene location - Indoor scene 1(Baseline)
- Geographical scene location - Outdoor scene 2(Baseline)
- Ambient temperature - Indoor scene 2(Baseline)
- Geographical scene location - Outdoor scene 3(Baseline)
- Ambient temperature - Indoor scene 1(Baseline)
- Subjective scene ratings - Indoor scene 1(Baseline)
- Subjective scene ratings - Indoor scene 2(Baseline)
- Subjective scene ratings - Outdoor scene 2(Baseline)
- Geographical scene location - Outdoor scene 1(Baseline)
- Ambient temperature - Outdoor scene 1(Baseline)
- Subjective scene ratings - Outdoor scene 1(Baseline)
- Subjective scene ratings - Outdoor scene 3(Baseline)
- Geographical scene location - Indoor scene 2(Baseline)
- Geographical scene location - Indoor scene 3(Baseline)
- Ambient temperature - Indoor scene 3(Baseline)