Temporal patterns in the complexity of child-directed song lyrics reflect their functions

Abstract Content produced for young audiences is structured to present opportunities for learning and social interactions. This research examines multi-scale temporal changes in predictability in Child-directed songs. We developed a technique based on Kolmogorov complexity to quantify the rate of ch...

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Main Authors: Pierre Labendzki, Louise Goupil, Sam Wass
Format: Article
Language:English
Published: Nature Portfolio 2025-03-01
Series:Communications Psychology
Online Access:https://doi.org/10.1038/s44271-025-00219-4
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author Pierre Labendzki
Louise Goupil
Sam Wass
author_facet Pierre Labendzki
Louise Goupil
Sam Wass
author_sort Pierre Labendzki
collection DOAJ
description Abstract Content produced for young audiences is structured to present opportunities for learning and social interactions. This research examines multi-scale temporal changes in predictability in Child-directed songs. We developed a technique based on Kolmogorov complexity to quantify the rate of change of textual information content over time. This method was applied to a corpus of 922 English, Spanish, and French publicly available child and adult-directed texts. Child-directed song lyrics (CDSongs) showed overall lower complexity compared to Adult-directed songs (ADsongs), and lower complexity was associated with a higher number of YouTube views. CDSongs showed a relatively higher information rate at the beginning and end compared to ADSongs. CDSongs and ADSongs showed a non-uniform information rate, but these periodic oscillatory patterns were more predictable in CDSongs compared to ADSongs. These findings suggest that the optimal balance between predictability and expressivity in information content differs between child- and adult-directed content, but also changes over timescales to potentially support multiple children’s needs.
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spelling doaj-art-9a19f53efdea4ceaa022be74667146bf2025-08-20T02:10:19ZengNature PortfolioCommunications Psychology2731-91212025-03-013111210.1038/s44271-025-00219-4Temporal patterns in the complexity of child-directed song lyrics reflect their functionsPierre Labendzki0Louise Goupil1Sam Wass2Department of Psychology, University of East LondonUniversité Grenoble Alpes, CNRS, LPNCDepartment of Psychology, University of East LondonAbstract Content produced for young audiences is structured to present opportunities for learning and social interactions. This research examines multi-scale temporal changes in predictability in Child-directed songs. We developed a technique based on Kolmogorov complexity to quantify the rate of change of textual information content over time. This method was applied to a corpus of 922 English, Spanish, and French publicly available child and adult-directed texts. Child-directed song lyrics (CDSongs) showed overall lower complexity compared to Adult-directed songs (ADsongs), and lower complexity was associated with a higher number of YouTube views. CDSongs showed a relatively higher information rate at the beginning and end compared to ADSongs. CDSongs and ADSongs showed a non-uniform information rate, but these periodic oscillatory patterns were more predictable in CDSongs compared to ADSongs. These findings suggest that the optimal balance between predictability and expressivity in information content differs between child- and adult-directed content, but also changes over timescales to potentially support multiple children’s needs.https://doi.org/10.1038/s44271-025-00219-4
spellingShingle Pierre Labendzki
Louise Goupil
Sam Wass
Temporal patterns in the complexity of child-directed song lyrics reflect their functions
Communications Psychology
title Temporal patterns in the complexity of child-directed song lyrics reflect their functions
title_full Temporal patterns in the complexity of child-directed song lyrics reflect their functions
title_fullStr Temporal patterns in the complexity of child-directed song lyrics reflect their functions
title_full_unstemmed Temporal patterns in the complexity of child-directed song lyrics reflect their functions
title_short Temporal patterns in the complexity of child-directed song lyrics reflect their functions
title_sort temporal patterns in the complexity of child directed song lyrics reflect their functions
url https://doi.org/10.1038/s44271-025-00219-4
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