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Legibility difference between e-books and paper books by using an eye tracker.

Jung-Yong Kim1, Seung-Nam Min, Murali Subramaniyam

  • 1a Industrial and Management Engineering , Hanyang University , Seoul , Korea.

Ergonomics
|April 25, 2014
PubMed
Summary

Reading paper books offers a better user experience than e-books, according to eye-tracking data. This study highlights the need for improved e-book legibility, considering factors like eye fatigue and device design.

Keywords:
e-bookeye trackerlegibilitypaper book

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Area of Science:

  • Human-Computer Interaction
  • Cognitive Psychology
  • Visual Perception

Background:

  • The proliferation of e-books necessitates an understanding of their impact on reading experience compared to traditional paper books.
  • Assessing visual legibility and user comfort is crucial for digital reading technologies.

Purpose of the Study:

  • To quantitatively evaluate the differences in reading legibility between e-books and paper books.
  • To investigate the influence of font size on the legibility of both e-books and paper books.
  • To analyze eye movement patterns and subjective discomfort during reading sessions.

Main Methods:

  • An eye-tracking experiment was conducted with 16 participants (8 male, 8 female) free of eye disease.
  • A within-subject design utilized two book types (e-book, paper book) and three font sizes (8 pt, 10 pt, 12 pt).
  • Dependent variables included fixation duration, saccade length, blink rate, and subjective discomfort.

Main Results:

  • All measured dependent variables indicated a superior reading experience with paper books compared to e-books.
  • Paper books resulted in shorter fixation durations and saccade lengths, and lower blink rates.
  • Participants reported less subjective discomfort when reading paper books.

Conclusions:

  • Current e-book technology requires further optimization to match the legibility and comfort of paper books.
  • Future improvements should focus on factors affecting visual perception, eye fatigue, and device characteristics.
  • Enhancing e-book legibility is essential for user satisfaction and sustained reading engagement.