The impact of flicker from fluorescent lighting on well-being, performance and physiological arousal

Article Abstract:

Fluorescent tubes are the dominant light source in many working environments and it has been suspected that their flicker can lead to undue stress, particularly in environments without natural daylight. A study compared the impact of fluorescent light powered by conventional and high-frequency ballasts on the subjective well-being, performance and physiological arousal. Individuals with high critical flicker fusion frequency (CFF) responded with an attenuation of EEG alpha waves, and a fall in in the accuracy of performance, when the light was powered by conventional ballasts.

Research, Safety and security measures, Occupational health and safety, Occupational safety and health, Fluorescent lighting

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Longitudinal changes in critical flicker fusion frequency: An indicator of human workload

Article Abstract:

A study based on the flicker test is conducted to confirm that the critical flicker fusion frequency (CFFF) changes in two ways, linearly and oscillatory with the intensity and sunlight duration and hence acts a very good indicator of human workload. The results suggest that CFFF is subject to both the changes, assuming that the sunlight is an insignificant factor, but can be very helpful for the interpretation of the results of the flicker test.

Psychological aspects, Analysis

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Technical note - development of a mental workload index: a systems approach

Article Abstract:

A study develops a method for determining the mental workload imposed on train control officers that is objective and quantifiable and can stand up to tests of validity and reliability. The methodology used and the assessment of the criteria considered for the mental workload index (MWLI) are also described.

Evaluation

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