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Temporal influences on glare response.

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The Building Centre

26 Store Street

London, United Kingdom

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There are two speakers at this meeting, both from the University of Nottingham.

a. Associate Professor Sergio Altomonte: Discomfort glare and time of day
This presentation will illustrate the results of a series of controlled laboratory experiments suggesting a tendency towards greater tolerance to luminance increases in artificial lighting as the day progresses. This trend was found not to be statistically related to the confounding variable of learning, and to be influenced by the difficulty of the task and a number of temporal variables (e.g., fatigue, chronotype, caffeine and food intake), leading to postulate an effect of time of day on glare sensation.

b. Dr Michael Kent: Temporal influences on glare response
Building on previous results, this presentation will illustrate the methodology of testing and analysis and the results of a series of semi-controlled experiments conducted in a test room with direct access to daylight and to an external view. A fixed-effects and mixed-effects multilevel model – considering both variables that were experimentally manipulated (fixed-effects) and variables that changed over time (random-effects) – detected a statistically significant and practically relevant effect of time of day on the evaluation of glare sensation from daylight. This reinforces the conclusion that physical and photometric parameters alone might not be sufficient to provide a consistently accurate prediction of visual (dis)comfort in buildings.

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The Building Centre

26 Store Street

London, United Kingdom

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