Evidence map›Paper›PMID 42647498›Full record

ArticleInfancy : the official journal of the International Society on Infant Studies

Infants Understand That Surprise Is Caused by Novel Information.

Di Liu, Lisa Feigenson

Abstract read
In one paragraph

Article in Infancy : the official journal of the International Society on Infant Studies. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Infants Understand That Surprise Is Caused by Novel Information.Infancy : the official journal of the International Society on Infant Studies
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Di LiuDepartment of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, Maryland, USA.ORCID https://orcid.org/0009-0008-0450-6048
Lisa FeigensonDepartment of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, Maryland, USA.ORCID https://orcid.org/0000-0002-9015-7065

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Infants use others' emotional expressions to make inferences about the world, for example by inferring candidate causes of their happiness or sadness. However, one emotion-surprise-is less clearly linked to specific external triggers. Rather, surprise can be invoked by any entity or event, so long as it offers novel information. Surprise is thus unique among the emotions, because once an observer has encountered something new it ceases to be surprising. Do infants understand this dynamic relationship between surprise and information? Here we addressed this using a violation-of-expectation paradigm with 17- to 24-month-old infants. In Experiment 1 (N = 36), we found that infants who saw a person express surprise each time she peered into a box inferred that the person must have seen multiple things inside, whereas infants made no such inference after seeing the person repeatedly express happiness. In Experiment 2 (N = 36), we found that infants did not merely expect to see one object revealed for each instance of surprise expressed; infants recognized that surprise can also be triggered by the absence of objects. Finally, in Experiment 3 (N = 36) we found that infants recognize that surprise is a response to information that is new with respect to a particular observer. Infants were sensitive not only to the number of surprise expressions produced, but also to which person in a multi-person scene had expressed surprise. Together, these results suggest that by the end of their second year, infants represent surprise as the reflection of dynamic changes in the epistemic states of others.

Indexed as

Child DevelopmentComprehensionEmotionsSocial PerceptionFemaleHumansInfantMaleemotioninfantslooking timesocial cognitionsurprise

Identifiers

PMID42647498
PMCPMC13433838

What OpenQuestion holds

Textmetadata
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Registered trials

None linked

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.