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Perceptual Learning of Visual Span Improves Chinese Reading Speed
Zhuoting Zhu1, Yin Hu1, Chimei Liao1
1State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.
Investigative Ophthalmology & Visual Science
|May 29, 2019
Summary
Perceptual learning significantly enhanced visual-span size and reading speed in Chinese text. This training improved character recognition, suggesting visual span is a trainable reading limitation.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Vision Science
Background:
- Perceptual learning enhances visual span and reading speed in alphabetic scripts.
- Chinese character reading involves unique visual processing challenges.
Purpose of the Study:
- Investigate perceptual learning's effect on visual-span size for Chinese characters.
- Determine if training improves sentence reading speed in Chinese.
- Explore sensory factor changes contributing to visual-span size modifications.
Main Methods:
- 26 participants were randomly assigned to training or control groups.
- Visual-span profiles (VSPs) and reading speed were measured pre- and post-training.
- Training involved 4 days of trigram character-recognition trials.
Main Results:
- Visual-span size increased by 11.7 bits post-training.
- Reading speed improved by 50.8% after training.
- Crowding significantly reduced (-13.1 bits), while mislocation errors slightly increased (1.46 bits).
Conclusions:
- Perceptual learning effectively expands visual-span size for Chinese characters.
- Training demonstrably improves Chinese text sentence-reading speed.
- Visual span is a trainable sensory limitation impacting reading efficiency.
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