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Naming two-digit arabic numerals: evidence from masked priming studies
Elie Ratinckx1, Marc Brysbaert, Wim Fias
1Department of Experimental Psychology, Ghent University, Henri Dunantlaan 2, B-9000 Ghent, Belgium. elie.ratinckx@ugent.be
Journal of Experimental Psychology. Human Perception and Performance
|November 3, 2005
Summary
Naming two-digit Arabic numerals involves a direct route from visual input to verbal output. Shared digits in the same position speed up naming, while shared digits in different positions slow it down.
Area of Science:
- Cognitive Psychology
- Psycholinguistics
- Neuroscience
Background:
- Understanding the cognitive processes underlying number naming is crucial for cognitive psychology and psycholinguistics.
- Previous research has explored semantic and non-semantic routes in number processing, but the specific mechanisms for Arabic numeral naming remain debated.
Purpose of the Study:
- To investigate the cognitive mechanisms involved in naming two-digit Arabic numerals.
- To determine whether the naming process relies on semantic mediation or a more direct route.
Main Methods:
- The study employed a masked priming paradigm with two-digit Arabic numerals.
- Naming latencies for target numerals were measured under various priming conditions.
Main Results:
- Faster naming latencies were observed when prime and target numerals shared a digit in the same position (e.g., 28 primed by 18 or 21).
- Slower naming latencies occurred when prime and target numerals shared digits in non-corresponding positions (e.g., 28 primed by 82 or 72).
- Priming effects were localized to the verbal production stage of Arabic numeral naming.
Conclusions:
- The findings suggest a non-semantically mediated pathway for naming two-digit Arabic numerals.
- This indicates a direct route from visual input to verbal output, bypassing deeper semantic processing.