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The malleable impact of non-numeric features in visual number perception
Denitza Dramkin1, Cory D Bonn2, Carolyn Baer3
1Department of Psychology, University of British Columbia, Canada.
Acta Psychologica
|September 12, 2022
Summary
Non-numeric cues like cumulative area can influence number judgments. However, these "congruency effects" are not obligatory and may arise from response competition rather than direct integration in number perception.
Area of Science:
- Cognitive Psychology
- Visual Perception
- Numerical Cognition
Background:
- Non-numeric stimulus features, such as cumulative area, often influence number judgments.
- These congruency effects are debated regarding their role in number perception and cue integration.
Purpose of the Study:
- To investigate whether congruency effects between cumulative area and number perception are obligatory or malleable.
- To determine if these effects stem from naturalistic correlations or response competition.
Main Methods:
- Experiment 1: Replicated prior work, introducing feedback to test malleability of cumulative area's influence on number judgments.
- Experiment 2: Modified the task to eliminate response competition by replacing dot arrays with Hindu-Arabic numerals, while preserving cumulative area as a cue.
Main Results:
- Feedback eliminated congruency effects in Experiment 1, indicating a malleable role for cumulative area.
- Congruency effects were absent in Experiment 2, regardless of feedback, suggesting they are not due to rational use of naturalistic correlations.
Conclusions:
- Congruency effects between cumulative area and number perception are likely a consequence of response competition, not obligatory integration.
- These findings clarify the interaction mechanisms between non-numeric cues and number perception.
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