Evidence map›Paper›PMID 32591549›Full record

ArticleScientific reports2020

Exploratory dynamics of vocal foraging during infant-caregiver communication.

V P S Ritwika, Gina M Pretzer, Sara Mendoza, Christopher Shedd, Christopher T Kello, Ajay Gopinathan, Anne S Warlaumont

Abstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Parents' neural dynamics in response to their children's speech.bioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Everyday language input and production in 1,001 children from six continents.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  5. Article
  6. Child language and autism diagnosis impact hierarchical temporal structure of parent-child vocal interactions in early childhood.Autism research : official journal of the International Society for Autism Research · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Contingency enables the formation of social expectations about an artificial agent.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

7 authors.

V P S RitwikaUniversity of California, Merced, Department of Physics, Merced, CA, 94343, USA. ritwika@ucmerced.edu.
Gina M PretzerUniversity of California, Merced, Cognitive and Information Sciences, Merced, CA, 95343, USA.
Sara MendozaUniversity of California, Merced, Cognitive and Information Sciences, Merced, CA, 95343, USA.
Christopher SheddUniversity of California, Merced, Department of Physics, Merced, CA, 94343, USA.
Christopher T KelloUniversity of California, Merced, Cognitive and Information Sciences, Merced, CA, 95343, USA.
Ajay GopinathanUniversity of California, Merced, Department of Physics, Merced, CA, 94343, USA.
Anne S WarlaumontUniversity of California, Los Angeles, Department of Communication, Los Angeles, CA, 90095, USA. warlaumont@ucla.edu.ORCID http://orcid.org/0000-0001-9450-1372

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We investigated the hypothesis that infants search in an acoustic space for vocalisations that elicit adult utterances and vice versa, inspired by research on animal and human foraging. Infant-worn recorders were used to collect day-long audio recordings, and infant speech-related and adult vocalisation onsets and offsets were automatically identified. We examined vocalisation-to-vocalisation steps, focusing on inter-vocalisation time intervals and distances in an acoustic space defined by mean pitch and mean amplitude, measured from the child's perspective. Infant inter-vocalisation intervals were shorter immediately following a vocal response from an adult. Adult intervals were shorter following an infant response and adult inter-vocalisation pitch differences were smaller following the receipt of a vocal response from the infant. These findings are consistent with the hypothesis that infants and caregivers are foraging vocally for social input. Increasing infant age was associated with changes in inter-vocalisation step sizes for both infants and adults, and we found associations between response likelihood and acoustic characteristics. Future work is needed to determine the impact of different labelling methods and of automatic labelling errors on the results. The study represents a novel application of foraging theory, demonstrating how infant behaviour and infant-caregiver interaction can be characterised as foraging processes.

Indexed as

AcousticsAdultAnimalsCaregiversCommunicationFemaleHumansInfantInfant BehaviorMaleSpeechVocalization, AnimalVoice

Identifiers

PMID32591549
PMCPMC7319970

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.