ArticlePsychological research2016
Operational momentum and size ordering in preverbal infants.
Article in Psychological research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed.
- Does the Brain Care Which Direction We Read? A Cross-Cultural tDCS Study on Functional Lateralization of Number Processing.Brain and behavior · 2025Article
- Operational momentum for magnitude ordering in preschool children and adults.Journal of experimental child psychology · 2019Article
- Spatial Presentations, but Not Response Formats Influence Spatial-Numerical Associations in Adults.Frontiers in psychology · 2018Article
- Infants learn better from left to right: a directional bias in infants' sequence learning.Scientific reports · 2017Article
- Insights into numerical cognition: considering eye-fixations in number processing and arithmetic.Psychological research · 2016Review
- Exploring the numerical mind by eye-tracking: a special issue.Psychological research · 2016Article
- Counting is a spatial process: evidence from eye movements.Psychological research · 2016Article
- Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Recent evidence has shown that, like adults and children, 9-month-old infants manifest an operational momentum (OM) effect during non-symbolic arithmetic, whereby they overestimate the outcomes to addition problems, and underestimate the outcomes to subtraction problems. Here we provide the first evidence that OM occurs for transformations of non-numerical magnitudes (i.e., spatial extent) during ordering operations. Twelve-month-old infants were tested in an ordinal task in which they detected and represented ascension or descension in physical size, and then responded to ordinal sequences that exhibited greater or lesser sizes. Infants displayed longer looking time to the size change whose direction violated the operational momentum experienced during habituation (i.e., the smaller sequence in the ascension condition and the larger sequence in the descension condition). The presence of momentum for ordering size during infancy suggests that continuous quantities are represented spatially during the first year of life.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.