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Bistable perception of symbolic numbers.
Junxiang Luo1,2, Isao Yokoi1,3,4, Serge O Dumoulin5,6,7,8,9
1Division of Sensory and Cognitive Brain Mapping, Department of System Neuroscience, National Institute for Physiological Sciences, Okazaki, Japan.
Journal of Vision
|September 17, 2024
Summary
Visual processing of numerals can lead to ambiguous interpretations when partially hidden. This ambiguity arises from intermediate visual shape processing, not abstract number concepts.
Area of Science:
- Cognitive Neuroscience
- Visual Perception
- Psycholinguistics
Background:
- Numerals are essential for representing quantities, and their visual processing is key to understanding numbers.
- Ambiguity in numeral recognition can arise from visual processing challenges.
Purpose of the Study:
- To investigate how visual information from numerals is processed for semantic understanding.
- To explore the origin of bistable interpretations in partially occluded digital numerals.
Main Methods:
- Utilized a visual adaptation paradigm with human participants.
- Tested interpretation biases using partially occluded digital numerals after adaptation to various stimuli.
Main Results:
- Partial occlusion of digital numerals resulted in bistable interpretations.
- Adaptation to digital Arabic numerals, normal Arabic numerals, and homologous shapes biased interpretation.
- Adaptation to Chinese numerals did not influence the interpretation bias.
Conclusions:
- Bistable interpretation of numerals is driven by intermediate visual shape processing stages.
- This processing occurs at a level more complex than orientation but less abstract than numeral concepts.
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