An Introduction to the Experimental Study of Visual Fatigue

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Previous work has shown that fatigue of the visual process as a whole is not directly measurable; it is therefore necessary to adopt the alternative method of studying the individual processes involved in vision. An analysis of the studies so far made on these unit functions shows that the motor processes involved are not readily fatigued; ineffective activity of these processes, however, rapidly leads to sensations of fatigue. This activity results from inadequate sensory projection, whether the inadequacy is a result of difficult external seeing conditions or of decreased efficiency of the retinal processes. Experiments were performed which showed that (1) the effective intensity of a given stimulus was affected considerably by the previous activity of the retina; (2) contrasts, and especially flicker, produced a marked retinal fatigue; (3) the site of this fatigue lay in the retinal structures behind the sense endings rather than in the sense endings themselves. It is concluded that retinal fatigue contributes a larger factor to visual fatigue than has hitherto been supposed; as long as the visual task is such that the factors producing a decrease in retinal efficiency are minimal, as is not usually the case in viewing the motion picture, visual fatigue will not supervene with unusual rapidity.
Publication Date: 1991-01-01
DOI: 10.5594/J02096
Link: https://doi.org/10.5594/J02096
Author(s): Peter A. Snell

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Peter A. Snell; An Introduction to the Experimental Study of Visual Fatigue, SMPTE Journal ( Volume: 100, Issue: 1, January 1991); SMPTE, 1991. Available at https://doi.org/10.5594/J02096

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Peter A. Snell; An Introduction to the Experimental Study of Visual Fatigue, SMPTE Journal ( Volume: 100, Issue: 1, January 1991); SMPTE, 1991. Available at https://doi.org/10.5594/J02096

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Peter A. Snell; An Introduction to the Experimental Study of Visual Fatigue, SMPTE Journal ( Volume: 100, Issue: 1, January 1991); SMPTE, 1991. Available at https://doi.org/10.5594/J02096

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<span class="citation">Peter A. Snell; <cite>An Introduction to the Experimental Study of Visual Fatigue</cite>, SMPTE Journal ( Volume: 100, Issue: 1, January 1991); SMPTE, 1991. Available at <a href="https://doi.org/10.5594/J02096" target="_blank" rel="noopener">https://doi.org/10.5594/J02096</a></span>

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Peter A. Snell; An Introduction to the Experimental Study of Visual Fatigue, SMPTE Journal ( Volume: 100, Issue: 1, January 1991); SMPTE, 1991
doi: 10.5594/J02096
url: https://doi.org/10.5594/J02096

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<li>
Peter A. Snell; <cite id="bib-10-5594-j02096">An Introduction to the Experimental Study of Visual Fatigue</cite>, SMPTE Journal ( Volume: 100, Issue: 1, January 1991); SMPTE, 1991
<span class="doi">10.5594/J02096</span>
</li>