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Impact Factor: 1.290 | Ranking: Ergonomics 5 out of 16 | Engineering, Industrial 19 out of 43 | Psychology, Applied 32 out of 75 | Behavioral Sciences 43 out of 49 | Psychology 53 ou t of 74 Source: 2013 Journal Citation Reports® (Thomson Reuters, 2014)


### Human Factors: The Journal of the Human Factors and Ergonomics Society hfs.sagepub.com doi: 10.1518/001872098779649355 Human Factors: The Journal of the Human Factors and Er gonomics SocietyDecember 1998 vol. 40 no. 4 554-568 

# Effects of Display Resolution on Visual Performance

Martina Ziefle Institute of Psychology, Rheinisch-Westfälische Technische Hochsch ule Aachen, Aachen, Germany 

## Abstract The role of display resolution in visual information processing was investigated in 2 experiments. Experiment 1 examined the effects of 2 CRT conditions (resolutions of 60 and 120 dots per inch [dpi]) and a paper control cond ition (255 dpi) on proofreading speed and accuracy. The results showed that reading perfor mance was significantly better in the paper condition than in the 2 CRT cond itions. Experiment 2 examined the effects of 3 different CRT resolutions (62, 69, and 89 dpi) on eye movement parameters (fixation duration and number of fixations) in a visual search task. Further, search reaction times (RTs) and observers′ ratings of visual fat igue were analyzed. RTs and fixation durations were significantly increased in the lo w-resolution condition (62 dpi) as compared with the high-resolution condition (89 dpi). The significant interaction between display resolution and time both for search RTs and fixation durations was taken as evidence for stronger fatigue in the low-resolut ion conditions. Additionally, the extent of visual fatigue correlates both with search RTs an d eye movement parameters. This finding gives rise to the assumption that observers′ responsiveness to effects of display resolution in terms of visual fatigue differs mar kedly. Actual or potential applications of this research include recommendations fo r the use of high-resolution displays (90 dpi and greater) to optimize visual perform ance, to make prolonged onscreen viewing more comfortable, and to avoid visual fati gue. 

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# Page 1 of 2 Effects of Display Resolution on Visual Performance

6/25/ 2015 http://hfs.sagepub.com/content/40/4/554.abstractPsychological factors and visual fatigue in working with video display terminals Occup. Environ. Med. April 1, 2001 58: 267-271 Abstract Full Text 

# Page 2 of 2 Effects of Display Resolution on Visual Performance

6/25/ 2015 http://hfs.sagepub.com/content/40/4/554.abstract