Evidence map›Paper›PMID 33556219›Full record

ArticleDevelopmental science2021

Communication changes when infants begin to walk.

Kelsey L West, Jana M Iverson

Abstract read
In one paragraph

Article in Developmental science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing 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

40 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Developmental Trajectories of Locomotor Skills in Infants With Down Syndrome.Pediatric physical therapy : the official publication of the Section on Pediatrics of the American Physical Therapy Association · 2026
    Observational
  5. Article
  6. Article
  7. Social communication development in a contingent world: insights from autism.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Review
  8. Article
  9. Higher Intraindividual Gait Variability in Autistic Toddlers: A Pilot Study.Journal of autism and developmental disorders · 2025
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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.

Kelsey L WestDepartment of Psychology, New York University, New York, NY, USA.
Jana M IversonDepartment of Psychology, University of Pittsburgh, Pittsburgh, PA, USA.

Funding

Vocal-Motor and Speech-Gesture Coordinations in InfancyR01HD041607 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI IVERSON, JANA M · 2002 to 2006
$1.3M
Walking and Talking: Cascades in Infant DevelopmentF32DC017903 · NIDCD · NEW YORK UNIVERSITY · PI WEST, KELSEY LOUISE · 2019 to 2021
$192k
NICHD NIH HHS R01 HD041607NIDCD NIH HHS F32 DC017903
6 · The paper itself

Abstract

Learning to walk allows infants to travel faster and farther and explore more of their environments. In turn, walking may have a cascading effect on infants' communication and subsequent responses from caregivers. We tested for an inflection point-a dramatic shift in the developmental progression-in infant communication and caregiver responses when infants started walking. We followed 25 infants longitudinally over 7 months surrounding the onset of walking (mean walk onset age = 11.76 months, SD = 1.56). After learning to walk, the pace of gesture growth (but not vocalization growth) increased substantially, and infants increasingly coordinated gestures and vocalizations with locomotion (e.g., by walking to a caregiver and showing off a toy bear). Consequently, caregivers had more opportunities to respond contingently to their infants during walking months compared to crawling months (e.g., "What did you find? Is that your bear?"). Changes in communication were amplified for infants who began walking at older ages, compared to younger walkers. Findings suggest that learning to walk marks a point in development when infants actively communicate in new ways, and consequently elicit rich verbal input from caregivers.

Indexed as

GesturesWalkingAgedCaregiversChild DevelopmentCommunicationHumansInfantInfant BehaviorLocomotionMiddle Agedcaregiver-infant interactionsdevelopmental cascadesgesturesinfant communicationmotor developmentvocalizations

Identifiers

PMID33556219
PMCPMC8349384

What OpenQuestion holds

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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.