The goal of this research is to establish a visual environment diagnostic model based on the occupant's physiological responses for detecting improper ambient lighting conditions, a major contributing factor to visual stress and work productivity in office workplace environments. The human body, as a biological mechanism, naturally minimizes the effects of ambient environmental stressors using its physiological autonomous nerve system. This system enables a human's pupils to dilate and contract, depending on visual sensations affected by the ambient lighting conditions. An extensive experiment using human subjects will be conducted in an environmental chamber on the University of Southern California campus. All parametric data including human pupil sizes and lighting parameters will be categorized by age and ethnic origin, to investigate and determine the most common features of pupil sizes per visual sensation among individuals. Lighting parameters, including illuminance (lux), luminance (cd/m2), and lighting-color-temperature (K), will be controlled and maintained for each volunteer subject based on his/her task-type (computer-based or paper-based), which is most typical in the current office environment.
This study will provide unique knowledge concerning how an occupant via his/her physiological signal, i.e. pupil size can interact with the visual (lighting) environment. The research outcome will be potentially applicable in reality to diagnose the lighting quality in workplace environments, and to integrate an occupant's pupil size information for the visual environmental controls.
|Commitee:||Kensek, Karen, Noble, Douglas|
|School:||University of Southern California|
|School Location:||United States -- California|
|Source:||MAI 54/01M(E), Masters Abstracts International|
|Keywords:||Human comfort, Indoor environmental quality, Lighting control, Office, Pupil size, Sustainability|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be