Individual differences in working memory during reading with and without parafoveal information: a moving-window...

Area of Science:

• Cognitive Psychology
• Neuroscience
• Linguistics

Background:

• Individual differences in working memory capacity are significant.
• The effective visual field influences reading performance.
• Japanese text presents unique challenges for visual processing during reading.

Purpose of the Study:

• To investigate the relationship between working memory capacity and effective visual field size during Japanese text reading.
• To determine how working memory differences impact reading speed, comprehension, and eye movement patterns.
• To explore the role of parafoveal vision in information integration for readers with varying working memory capacities.

Main Methods:

• Participants were categorized into high- and low-working memory capacity groups using a Japanese reading span test.
• Reading performance was assessed via reading time, comprehension accuracy, and eye-tracking.
• A variable moving window technique was employed to manipulate the visual field available for reading.

Main Results:

• Reading time significantly increased as the visual window size decreased.
• High-span (high working memory) individuals outperformed low-span individuals in reading time, comprehension, and fixation duration, particularly under restricted visual conditions.
• High-span readers exhibited enhanced information integration, while low-span readers showed reduced integration without parafoveal vision.

Conclusions:

• Larger working memory capacity is associated with better reading performance, especially when the visual field is restricted.
• Working memory resources are critical for efficient information processing and integration during reading, particularly in the absence of parafoveal preview.
• These findings have implications for understanding reading difficulties and developing targeted interventions.