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Impact of screen size on cognitive training task performance: An HMD study
Eric Redlinger1, Bernhard Glas2, Yang Rong1
1Tokyo Institute of Technology, Japan.
Summary
Screen size impacts cognitive training effectiveness. Benefits from larger screens in cognitive tasks may plateau around a 20° visual angle, with larger sizes potentially hindering performance.
Area of Science:
- Cognitive science
- Human-computer interaction
- Neuroscience
Background:
- Previous research indicates larger screen sizes can enhance performance in memory and learning tasks.
- The role of visual angle in cognitive training effectiveness remains incompletely understood.
Purpose of the Study:
- To investigate the effect of different screen sizes, manipulated via visual angle, on cognitive training performance.
- To assess cognitive load using electroencephalography (EEG) in relation to task performance across varying visual angles.
Main Methods:
- Participants completed an adaptive cognitive training task using a head-mounted display (HMD) at three distinct visual angles.
- Cognitive load was measured using EEG, and performance metrics (accuracy, response time) were recorded for each condition.
Main Results:
- Cognitive training performance improved with increasing screen size up to a visual angle of approximately 20°.
- Beyond 20°, further increases in screen size showed an inverse correlation with task performance, suggesting a performance decline.
Conclusions:
- The benefits of larger screen sizes for cognitive training are not linear and appear to be constrained by visual angle.
- Optimal screen size for cognitive training may be limited to a specific visual angle range (around 20°) to maximize performance and avoid potential detriments.
