Journal of Eye Movement Research

7 pages, 355 KiB

Open AccessArticle

LCD vs. E-Ink: An Analysis of the Reading Behavior

by Eva Siegenthaler, Laura Schmid, Michael Wyss and Pascal Wurtz

J. Eye Mov. Res. 2012, 5(3), 1-7; https://doi.org/10.16910/jemr.5.3.5 - 14 Jul 2012

Cited by 21 | Viewed by 119

Electronic books (e-book) are an interesting option compared to classic paper books. Most e-reading devices of the first generation were based on e-ink technology. With the appearance of the Apple iPad on the market, TFT-LCDs became important in the field of e-reading. Both technologies have advantages and disadvantages but the question remains whether one or the other technology is better for reading. In the present study we analyzed and compared reading behavior when reading on e-inkreader (e-ink displays) and on tablets (TFT-LCDs) as measured by eye-tracking. The results suggest that the reading behavior on tablets is indeed very similar to the reading behavior on e-ink-reader. Participants showed no difference in fixation duration. Significant differences in reading speed and in the proportion of regressive saccades suggest that tablets, under special artificial light conditions, may even provide better legibility. Full article

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11 pages, 591 KiB

Open AccessArticle

Rapid Learning of Pursuit Target Motion Trajectories Revealed by Responses to Randomized Transient Sinusoids

by G. R. Barnes

J. Eye Mov. Res. 2012, 5(3), 1-11; https://doi.org/10.16910/jemr.5.3.4 - 19 Jun 2012

Cited by 3 | Viewed by 51

Abstract

When humans pursue sinusoidal target motion they rapidly learn to track with minimal phase error despite inherent visuomotor processing delays; prior evidence suggests that prediction might even occur within the first cycle. Here, this has been examined by evoking reactive responses to single cycle stimuli having randomised periodicity and peak velocity. Periodicity was varied within three specific ranges with differing average periodicity. Initial responses in the first half-cycle were remarkably similar within periodicity ranges, irrespective of target velocity or frequency, but differed between ranges. In contrast, in the second half-cycle eye velocity closely matched the target in velocity and timing, irrespective of differences in eye velocity in the first half. Abrupt transitions occurred between first and second half-cycles, consistent with the hypothesis that target motion information is sampled and stored within the first half-cycle, irrespective of actual eye velocity evoked, and then released as a predictive estimate in the second half. Full article

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9 pages, 510 KiB

Open AccessArticle

The Effect of Different Text Presentation Formats on Eye Movement Metrics in Reading

by Selina Sharmin, Oleg Špakov and Kari-Jouko Räihä

J. Eye Mov. Res. 2012, 5(3), 1-9; https://doi.org/10.16910/jemr.5.3.3 - 7 Jun 2012

Cited by 14 | Viewed by 47

Abstract

Eye movement data were collected and analyzed from 16 participants while they read text from a computer screen. Several text presentation formats were compared, including sentences as part of a full paragraph, sentences presented one by one, sentences presented in chunks of at most 30 characters at a predefined rate, and line-by-line presentation fitting the width of the computer screen. The goal of the experiment was to study how these different text presentation modes affect eye movement metrics (fixation duration, fixations per minute, regressions, etc.). One-way repeated measures ANOVA revealed that differences in presentation format have a significant effect on fixation duration, number of fixations per minute, and number of regressions. Full article

9 pages, 703 KiB

Open AccessArticle

Error Correction in Vergence Eye Movements: Evidence Supporting Hering’s Law

by John Semmlow, Tara L. Alvarez and Bérangère Granger-Donetti

J. Eye Mov. Res. 2012, 5(3), 1-9; https://doi.org/10.16910/jemr.5.3.2 - 26 May 2012

Cited by 4 | Viewed by 57

Abstract

In pure symmetrical vergence eye movements, a fusion initiating component quickly brings the eyes close to the desired position. A small error usually remains after this response which must be corrected to attain the small final vergence error (i.e., fixation disparity). Error correction will usually involve both version and version movements so possible mechanisms include: small saccades, smooth pursuit, symmetrical vergence, or some combination. Alternatively, an asymmetrical vergence or uniocular slow eye movement could be used to achieve the highly precise final position. Saccade-free late fusion sustaining components during the steady state to a symmetrical vergence step stimulus are analyzed using independent component analysis. Results suggest that fine correction is most likely the product of closely coordinated version and vergence components. Full article

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10 pages, 643 KiB

Open AccessArticle

High Working Memory Performers Have Efficient Eye Movement Control Systems Under Reading Span Test

by Miyuki Azuma, Takashi Ikeda, Takehiro Minamoto, Mariko Osaka and Naoyuki Osaka

J. Eye Mov. Res. 2012, 5(3), 1-10; https://doi.org/10.16910/jemr.5.3.1 - 16 May 2012

Cited by 6 | Viewed by 66

Abstract

Controlled eye movements are critical in performing highly goal oriented behavior such as text reading. Previous studies have examined the relationship between working memory capacity and eye movement control during working memory task. However, the results were inconsistent, due to a methodological issue including the predictability of target location. In the present study, we used Japanese version of reading span test, where the position of to-be-remembered word is not predictable so that more efficient attentional control is required, and investigated how working memory capacity contributes to eye movement control during reading span test. Results based on total fixation time revealed that highworking memory performers efficiently control or shift their attention under high memory load. Full article

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J. Eye Mov. Res., Volume 5, Issue 3 (July 2012) – 5 articles

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