The level of brightness contrast required for letter recognition in daytime lighting conditions is a function of letter size, color contrast, and the observer's age. The average contrast required by older subjects was 2.13 times the contrast required by younger subjects. Eqs. (1-2) can be used in instrument panel design to meet or exceed the legibility criterion used here - that is, legible enough to read at least two english letters in one brief glance at a display.Older individuals could not discriminate color differences as well as younger subjects. The same age effect has been found with the Farnsworth-Munsell 100 hue test (1-2).† Just-Noticeable-Distances (JNDs) in 1931 color space were larger than those found in previous experiments (3) – on average, 8.6 times larger for older subjects and 5.0 times larger for younger subjects. The JNDs reported here represent color discrimination with small, separated stimuli (like IP symbols), whereas previous work represents color discrimination with large, contiguous stimuli.Older subjects were asked to rate a small set of CUT colors in terms of how desirable they would be for nighttime instrument panel lettering. Green and bluegreen were the most preferred colors; red and blue were the least preferred. Preferred luminance for such lettering differed greatly between colors, (ranging from 2.5 to 21.8 cd/m2), and differed in such a way as to suggest that subjects were adjusting the luminance to a constant subjective brightness (4-5).


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    The Effects of Aging on Perception of Visual Displays


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Passenger Car Meeting & Exposition ; 1988



    Erscheinungsdatum :

    01.11.1988




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    The effects of aging on perception of visual displays

    Poynter,D. / General Motors,US | Kraftfahrwesen | 1988


    Visual perception of direct-view and collimated displays under vibration

    Banbury, J.R. / Schmit, V.P. / Gibson, C.P. et al. | Tema Archiv | 1987


    Audio-Visual Interactions for 3-D Perception in Helmet-Mounted Displays

    Roumes / Godfroy / Hourlier | British Library Conference Proceedings | 2003


    Illusion in reality: visual perception in displays (Keynote Address) [4299-02]

    Kaufman, L. / Kaufman, J. H. / SPIE- the International Society for Optical Engineering et al. | British Library Conference Proceedings | 2001


    Framing Effects on Distance Perception in Rear-Vision Displays

    Sivak, Michael / Flannagan, Michael J. | SAE Technical Papers | 2003