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Recent is more: A negative time-order effect in nonsymbolic numerical judgment
- Source :
- Journal of Experimental Psychology: Human Perception and Performance. 43:1084-1097
- Publication Year :
- 2017
- Publisher :
- American Psychological Association (APA), 2017.
-
Abstract
- Humans as well as some nonhuman animals can estimate object numerosities-such as the number of sheep in a flock-without explicit counting. Here, we report on a negative time-order effect (TOE) in this type of judgment: When nonsymbolic numerical stimuli are presented sequentially, the second stimulus is overestimated compared to the first. We examined this "recent is more" effect in two comparative judgment tasks: larger-smaller discrimination and same-different discrimination. Ideal-observer modeling revealed evidence for a TOE in 88.2% of the individual data sets. Despite large individual differences in effect size, there was strong consistency in effect direction: 87.3% of the identified TOEs were negative. The average effect size was largely independent of task but did strongly depend on both stimulus magnitude and interstimulus interval. Finally, we used an estimation task to obtain insight into the origin of the effect. We found that subjects tend to overestimate both stimuli but the second one more strongly than the first one. Overall, our findings are highly consistent with findings from studies on TOEs in nonnumerical judgments, which suggests a common underlying mechanism. (PsycINFO Database Record
- Subjects :
- Adult
Male
Time Factors
Order effect
Experimental and Cognitive Psychology
Stimulus (physiology)
Toe
050105 experimental psychology
Judgment
Young Adult
03 medical and health sciences
Behavioral Neuroscience
0302 clinical medicine
Arts and Humanities (miscellaneous)
Stimulus magnitude
Individual data
Humans
0501 psychology and cognitive sciences
Interstimulus interval
05 social sciences
Strong consistency
Mathematical Concepts
Pattern Recognition, Visual
Female
Psychology
030217 neurology & neurosurgery
Cognitive psychology
Subjects
Details
- ISSN :
- 19391277 and 00961523
- Volume :
- 43
- Database :
- OpenAIRE
- Journal :
- Journal of Experimental Psychology: Human Perception and Performance
- Accession number :
- edsair.doi.dedup.....0fafea7b5e726c517f87aab0ee6c1386