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Mesopic visual efficiency II: reaction time experiments

Goodman, T M; Walkey, H*; Orrevetelainen, P*; Barbur, J*; Halonen, L*; Alferdinck, J*; Freiding, A*; Szalmas, A* (2007) Mesopic visual efficiency II: reaction time experiments. Lighting Res. Technol., 39 (4). pp. 335-354.

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Reaction times were recorded to chromatic, mesopic stimuli to investigate mesopic reaction time spectral sensitivity. Measurements were made using three laboratory set-ups and a driving simulator. The chromatic stimuli had spectral distributions that ranged from quasi-monochromatic to broadband. Reaction time spectral sensitivity for small (0.29o) foveal stimuli changed little with luminance and was described adequately by V(l). Reaction time spectral sensitivity for peripheral stimuli exhibited a Purkinje shift, and approached V'(lambda) at 0.01 cd m-2. In the periphery, the results for medium-sized stimuli (2o) reflected the activity of colour-opponent neurons in addition to rod and cone-based achromatic activity, resulting in three-peaked spectral sensitivity functions.

Item Type: Article
Keywords: mesopic vision, reaction time, mesopic photometry, spectral sensitivity, spectral luminous efficiency, night-time driving, mesopic visual performance, colour vision
Subjects: Optical Radiation and Photonics
Optical Radiation and Photonics > Materials and Appearance
Last Modified: 02 Feb 2018 13:15
URI: http://eprintspublications.npl.co.uk/id/eprint/4061

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