1
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Isbilen ES, Laver A, Siegelman N, Aslin RN. Memory representations are flexibly adapted to orthographic systems: A comparison of English and Hebrew. Brain Res 2024; 1844:149127. [PMID: 39033951 DOI: 10.1016/j.brainres.2024.149127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 05/16/2024] [Accepted: 07/18/2024] [Indexed: 07/23/2024]
Abstract
Across languages, speech unfolds in the same temporal order, constrained by the forward flow of time. But the way phonology is spatially mapped onto orthography is language-specific, ranging from left-to-right, right-to-left, and top-to-bottom, among others. While the direction of writing systems influences how known words are visually processed, it is unclear whether it influences learning and memory for novel orthographic regularities. The present study tested English and Hebrew speakers on an orthographic word-referent mapping task in their native orthographies (written left-to-right and right-to-left, respectively), where the onsets and offsets of words were equally informative cues to word identity. While all individuals learned orthographic word-referent mappings significantly above chance, the parts of the word that were most strongly represented varied. English monolinguals false alarmed most to competing foils that began with the same bigram as the target, representing word onsets most strongly. However, Hebrew bilinguals trained on their native orthography showed no difference between false alarm rates to onset and offset competitors, representing the beginning and ends of words equally strongly. Importantly, Hebrew bilinguals tested on English words displayed a more English-like false alarm pattern (although not a full switch), suggesting that memory biases adapt to the opposite directionality of encountered text while retaining traces of native language biases. These findings demonstrate that experience with different writing systems influences how individuals represent novel orthographic words, starting in the earliest stages of learning.
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Affiliation(s)
- Erin S Isbilen
- Yale Child Study Center, Yale University, New Haven, CT, USA.
| | - Abigail Laver
- Department of Psychology, University of Pennsylvania, Philadelphia, PA, USA
| | - Noam Siegelman
- Department of Psychology and Department of Cognitive & Brain Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Richard N Aslin
- Yale Child Study Center, Yale University, New Haven, CT, USA; Department of Psychology, Yale University, New Haven, CT, USA
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2
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Ivanova-Sullivan T, Meir N, Sekerina IA. Fine-grained differences in gender-cue strength affect predictive processing in children: Cross-linguistic evidence from Russian and Bulgarian. J Exp Child Psychol 2024; 242:105868. [PMID: 38367347 DOI: 10.1016/j.jecp.2024.105868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 12/19/2023] [Accepted: 01/11/2024] [Indexed: 02/19/2024]
Abstract
We tested predictive gender agreement processing in adjective-noun phrases by 45 4- to 6-year-old Russian- and Bulgarian-speaking children using the visual world eye-tracking paradigm. Russian and Bulgarian are closely related languages that have three genders but differ in the nature and number of gender cues on adjectives. Analysis of the proportion and time course of looks to the target noun showed that only Bulgarian children used gender cues to predict the upcoming noun. We argue that the cross-linguistic difference in the gender cue strength is revealed through the operation of economy, transparency, and interdependence in a gender complexity matrix. The documented advantage for Bulgarian children in gender agreement processing and acquisition underscores the need for a comparative language acquisition approach to typologically close languages.
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Affiliation(s)
- Tanya Ivanova-Sullivan
- Department of Slavic, East European, and Eurasian Languages and Cultures, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| | - Natalia Meir
- Department of English Literature and Linguistics & the Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Irina A Sekerina
- Department of Psychology, College of Staten Island and the P.D. Program in Linguistics, The Graduate Center, City University of New York, Staten Island, NY 10314, USA
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3
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Lupyan G, Contreras Kallens P, Dale R. Information density as a predictor of communication dynamics. Trends Cogn Sci 2024; 28:489-491. [PMID: 38632006 DOI: 10.1016/j.tics.2024.03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 03/27/2024] [Indexed: 04/19/2024]
Abstract
In a recent paper, Aceves and Evans computed information and semantic density measures for hundreds of languages, and showed that these measures predict the pace and breadth of ideas in communication. Here, we summarize their key findings and situate them in a broader debate about the adaptive nature of language.
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Affiliation(s)
- Gary Lupyan
- Department of Psychology, University of Wisconsin-Madison, Madison, WI, USA.
| | | | - Rick Dale
- Department of Communication, UCLA, Los Angeles, CA, USA.
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4
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Zettersten M, Cox C, Bergmann C, Tsui ASM, Soderstrom M, Mayor J, Lundwall RA, Lewis M, Kosie JE, Kartushina N, Fusaroli R, Frank MC, Byers-Heinlein K, Black AK, Mathur MB. Evidence for Infant-directed Speech Preference Is Consistent Across Large-scale, Multi-site Replication and Meta-analysis. Open Mind (Camb) 2024; 8:439-461. [PMID: 38665547 PMCID: PMC11045035 DOI: 10.1162/opmi_a_00134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 02/19/2024] [Indexed: 04/28/2024] Open
Abstract
There is substantial evidence that infants prefer infant-directed speech (IDS) to adult-directed speech (ADS). The strongest evidence for this claim has come from two large-scale investigations: i) a community-augmented meta-analysis of published behavioral studies and ii) a large-scale multi-lab replication study. In this paper, we aim to improve our understanding of the IDS preference and its boundary conditions by combining and comparing these two data sources across key population and design characteristics of the underlying studies. Our analyses reveal that both the meta-analysis and multi-lab replication show moderate effect sizes (d ≈ 0.35 for each estimate) and that both of these effects persist when relevant study-level moderators are added to the models (i.e., experimental methods, infant ages, and native languages). However, while the overall effect size estimates were similar, the two sources diverged in the effects of key moderators: both infant age and experimental method predicted IDS preference in the multi-lab replication study, but showed no effect in the meta-analysis. These results demonstrate that the IDS preference generalizes across a variety of experimental conditions and sampling characteristics, while simultaneously identifying key differences in the empirical picture offered by each source individually and pinpointing areas where substantial uncertainty remains about the influence of theoretically central moderators on IDS preference. Overall, our results show how meta-analyses and multi-lab replications can be used in tandem to understand the robustness and generalizability of developmental phenomena.
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Affiliation(s)
| | - Christopher Cox
- Department of Linguistics, Cognitive Science and Semiotics, School of Communication and Culture, Aarhus University; Interacting Minds Center, School of Culture and Society, Aarhus University
| | | | | | | | - Julien Mayor
- Department of Linguistics and Scandinavian Studies, University of Oslo
| | | | - Molly Lewis
- Department of Psychology/Social and Decision Sciences, Carnegie Mellon University
| | | | | | - Riccardo Fusaroli
- Department of Linguistics, Cognitive Science and Semiotics, School of Communication and Culture, Aarhus University; Interacting Minds Center, School of Culture and Society, Aarhus University
| | | | | | - Alexis K. Black
- School of Audiology and Speech Sciences, University of British Columbia
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5
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Wei R, Sullivan EF, Begum F, Rahman N, Tofail F, Haque R, Nelson CA. Parental communicative input as a protective factor in Bangladeshi families living in poverty: A multi-dimensional perspective. Dev Sci 2024:e13494. [PMID: 38504647 DOI: 10.1111/desc.13494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 02/03/2024] [Accepted: 02/25/2024] [Indexed: 03/21/2024]
Abstract
Studies from high-income populations have shown that stimulating, supportive communicative input from parents promote children's cognitive and language development. However, fewer studies have identified specific features of input supporting the healthy development of children growing up in low- or middle-income countries. The current study proposes and tests a multi-dimensional framework for understanding whether and how caregiver communicative input mediates the associations between socio-economic conditions and early development. We also examine how caregiver conceptual scaffolding and autonomy support uniquely and synergistically explain variation in child outcomes. Participants were 71 Bangladeshi families with five-year-olds who were exposed to a range of biological and psychosocial hazards from birth. Caregiver-child interactions during snack sharing and semi-structured play were coded for caregiver conceptual scaffolding, autonomy support, and child engagement. Findings indicate that the two dimensions of input were correlated, suggesting that caregivers who provided richer conceptual scaffolds were simultaneously more supportive of children's autonomy. Notably, conceptual scaffolding and autonomy support each mediated associations between maternal education and child verbal intelligence quotient (IQ) scores. Further, caregivers who supported greater autonomy in their children had children who participated in conversations more actively, and these children in turn had higher performance IQ scores. When considered simultaneously, conceptual scaffolding was associated with verbal IQ over and above autonomy support, whereas autonomy support related to child engagement, controlling for conceptual scaffolding. These findings shed new light on how environmental factors may support early development, contributing to the design of family-centered, culturally authentic interventions. A video abstract of this article can be viewed at https://youtu.be/9v_8sIv7ako RESEARCH HIGHLIGHTS: Studies from high-income countries have identified factors mitigating the impacts of socio-economic risks on development. Such research is scarce in low- and middle-income countries. The present study conceptualized and evaluated caregiver communicative input in Bangladeshi families along two interrelated yet distinct dimensions: conceptual scaffolding and autonomy support. Conceptual scaffolding and autonomy support individually mediated associations between maternal education and child verbal IQ, shedding light on protective factors in families living in poverty. Parents providing richer conceptual scaffolds were simultaneously more supportive of children's autonomy. However, the two dimensions each related to cognition and language through unique pathways.
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Affiliation(s)
- Ran Wei
- Graduate School of Education, Peking University, Beijing, China
| | - Eileen F Sullivan
- Division of Developmental Medicine, Boston Children's Hospital, Harvard Medical School, Brookline, Massachusetts, USA
- Harvard Graduate School of Education, Cambridge, Massachusetts, USA
| | - Fatema Begum
- Division of Developmental Medicine, Boston Children's Hospital, Harvard Medical School, Brookline, Massachusetts, USA
| | - Navin Rahman
- Division of Developmental Medicine, Boston Children's Hospital, Harvard Medical School, Brookline, Massachusetts, USA
| | - Fahmida Tofail
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Rashidul Haque
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Charles A Nelson
- Division of Developmental Medicine, Boston Children's Hospital, Harvard Medical School, Brookline, Massachusetts, USA
- Harvard Graduate School of Education, Cambridge, Massachusetts, USA
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6
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Chieng ACJ, Wynn CJ, Wong TP, Barrett TS, Borrie SA. Lexical Alignment is Pervasive Across Contexts in Non-WEIRD Adult-Child Interactions. Cogn Sci 2024; 48:e13417. [PMID: 38478742 PMCID: PMC11059382 DOI: 10.1111/cogs.13417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 04/04/2024]
Abstract
Lexical alignment, a communication phenomenon where conversational partners adapt their word choices to become more similar, plays an important role in the development of language and social communication skills. While this has been studied extensively in the conversations of preschool-aged children and their parents in Western, Educated, Industrialized, Rich, and Democratic (WEIRD) communities, research in other pediatric populations is sparse. This study makes significant expansions on the existing literature by focusing on alignment in naturalistic conversations of school-aged children from a non-WEIRD population across multiple conversational tasks and with different types of adult partners. Typically developing children aged 5 to 8 years (n = 45) engaged in four semi-structured conversations that differed by task (problem-solving vs. play-based) and by partner (parent vs. university student), resulting in a corpus of 180 conversations. Lexical alignment scores were calculated and compared to sham conversations, representing alignment occurring at the level of chance. Both children and adults coordinated their conversational utterances by re-using or aligning each other's word choices. This alignment behavior persisted across conversational tasks and partners, although the degree of alignment was moderated by the conversational context. These findings suggest that lexical alignment is a robust phenomenon in conversations between school-age children and adults. Furthermore, this study extends lexical alignment findings to a non-WEIRD culture, suggesting that alignment may be a coordination strategy employed by adults and children across diverse linguistic and cultural backgrounds.
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Affiliation(s)
| | - Camille J. Wynn
- Department of Communication Science and Disorders, University of Houston
| | - Tze Peng Wong
- School of Education, University of Nottingham Malaysia
| | | | - Stephanie A. Borrie
- Department of Communicative Disorders and Deaf Education, Utah State University
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7
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García AM, de Leon J, Tee BL, Blasi DE, Gorno-Tempini ML. Speech and language markers of neurodegeneration: a call for global equity. Brain 2023; 146:4870-4879. [PMID: 37497623 PMCID: PMC10690018 DOI: 10.1093/brain/awad253] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 06/29/2023] [Accepted: 07/15/2023] [Indexed: 07/28/2023] Open
Abstract
In the field of neurodegeneration, speech and language assessments are useful for diagnosing aphasic syndromes and for characterizing other disorders. As a complement to classic tests, scalable and low-cost digital tools can capture relevant anomalies automatically, potentially supporting the quest for globally equitable markers of brain health. However, this promise remains unfulfilled due to limited linguistic diversity in scientific works and clinical instruments. Here we argue for cross-linguistic research as a core strategy to counter this problem. First, we survey the contributions of linguistic assessments in the study of primary progressive aphasia and the three most prevalent neurodegenerative disorders worldwide-Alzheimer's disease, Parkinson's disease, and behavioural variant frontotemporal dementia. Second, we address two forms of linguistic unfairness in the literature: the neglect of most of the world's 7000 languages and the preponderance of English-speaking cohorts. Third, we review studies showing that linguistic dysfunctions in a given disorder may vary depending on the patient's language and that English speakers offer a suboptimal benchmark for other language groups. Finally, we highlight different approaches, tools and initiatives for cross-linguistic research, identifying core challenges for their deployment. Overall, we seek to inspire timely actions to counter a looming source of inequity in behavioural neurology.
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Affiliation(s)
- Adolfo M García
- Global Brain Health Institute, University of California, San Francisco, CA 94143, USA
- Cognitive Neuroscience Center, Universidad de San Andrés, Buenos Aires B1644BID, Argentina
- Departamento de Lingüística y Literatura, Facultad de Humanidades, Universidad de Santiago de Chile, Santiago 9160000, Chile
- Latin American Brain Health (BrainLat) Institute, Universidad Adolfo Ibáñez, Avenida Diagonal Las Torres 2640 (7941169), Santiago, Peñalolén, Región Metropolitana, Chile
| | - Jessica de Leon
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA 94143, USA
| | - Boon Lead Tee
- Global Brain Health Institute, University of California, San Francisco, CA 94143, USA
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA 94143, USA
| | - Damián E Blasi
- Data Science Initiative, Harvard University, Cambridge, MA 02138, USA
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
- Department of Linguistic and Cultural Evolution, Max Planck Institute for the Science of Human History, Jena 07745, Germany
| | - Maria Luisa Gorno-Tempini
- Memory and Aging Center, Department of Neurology, University of California, San Francisco, CA 94143, USA
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8
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Cox C, Dideriksen C, Keren-Portnoy T, Roepstorff A, Christiansen MH, Fusaroli R. Infant-directed speech does not always involve exaggerated vowel distinctions: Evidence from Danish. Child Dev 2023; 94:1672-1696. [PMID: 37307398 DOI: 10.1111/cdev.13950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/10/2023] [Accepted: 04/11/2023] [Indexed: 06/14/2023]
Abstract
This study compared the acoustic properties of 26 (100% female, 100% monolingual) Danish caregivers' spontaneous speech addressed to their 11- to 24-month-old infants (infant-directed speech, IDS) and an adult experimenter (adult-directed speech, ADS). The data were collected between 2016 and 2018 in Aarhus, Denmark. Prosodic properties of Danish IDS conformed to cross-linguistic patterns, with a higher pitch, greater pitch variability, and slower articulation rate than ADS. However, an acoustic analysis of vocalic properties revealed that Danish IDS had a reduced or similar vowel space, higher within-vowel variability, raised formants, and lower degree of vowel discriminability compared to ADS. None of the measures, except articulation rate, showed age-related differences. These results push for future research to conduct theory-driven comparisons across languages with distinct phonological systems.
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Affiliation(s)
- Christopher Cox
- School of Communication and Culture, Aarhus University, Aarhus, Denmark
- Interacting Minds Centre, Aarhus University, Aarhus, Denmark
- Department of Language and Linguistic Science, University of York, Vanbrugh College, York, UK
| | - Christina Dideriksen
- School of Communication and Culture, Aarhus University, Aarhus, Denmark
- Interacting Minds Centre, Aarhus University, Aarhus, Denmark
| | - Tamar Keren-Portnoy
- Department of Language and Linguistic Science, University of York, Vanbrugh College, York, UK
| | - Andreas Roepstorff
- School of Communication and Culture, Aarhus University, Aarhus, Denmark
- Interacting Minds Centre, Aarhus University, Aarhus, Denmark
| | - Morten H Christiansen
- School of Communication and Culture, Aarhus University, Aarhus, Denmark
- Interacting Minds Centre, Aarhus University, Aarhus, Denmark
- Department of Psychology, Cornell University, New York, Ithaca, USA
| | - Riccardo Fusaroli
- School of Communication and Culture, Aarhus University, Aarhus, Denmark
- Interacting Minds Centre, Aarhus University, Aarhus, Denmark
- Linguistic Data Consortium, University of Pennsylvania, Philadelphia, USA
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9
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Dideriksen C, Christiansen MH, Dingemanse M, Højmark-Bertelsen M, Johansson C, Tylén K, Fusaroli R. Language-Specific Constraints on Conversation: Evidence from Danish and Norwegian. Cogn Sci 2023; 47:e13387. [PMID: 38009981 DOI: 10.1111/cogs.13387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 10/30/2023] [Accepted: 11/13/2023] [Indexed: 11/29/2023]
Abstract
Establishing and maintaining mutual understanding in everyday conversations is crucial. To do so, people employ a variety of conversational devices, such as backchannels, repair, and linguistic entrainment. Here, we explore whether the use of conversational devices might be influenced by cross-linguistic differences in the speakers' native language, comparing two matched languages-Danish and Norwegian-differing primarily in their sound structure, with Danish being more opaque, that is, less acoustically distinguished. Across systematically manipulated conversational contexts, we find that processes supporting mutual understanding in conversations vary with external constraints: across different contexts and, crucially, across languages. In accord with our predictions, linguistic entrainment was overall higher in Danish than in Norwegian, while backchannels and repairs presented a more nuanced pattern. These findings are compatible with the hypothesis that native speakers of Danish may compensate for its opaque sound structure by adopting a top-down strategy of building more conversational redundancy through entrainment, which also might reduce the need for repairs. These results suggest that linguistic differences might be met by systematic changes in language processing and use. This paves the way for further cross-linguistic investigations and critical assessment of the interplay between cultural and linguistic factors on the one hand and conversational dynamics on the other.
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Affiliation(s)
| | - Morten H Christiansen
- School of Communication and Culture, Aarhus University
- The Interacting Minds Center, Aarhus University
- Department of Psychology, Cornell University
| | | | | | - Christer Johansson
- Department of Linguistic, Literary and Aesthetic Studies, University of Bergen
| | - Kristian Tylén
- School of Communication and Culture, Aarhus University
- The Interacting Minds Center, Aarhus University
| | - Riccardo Fusaroli
- School of Communication and Culture, Aarhus University
- The Interacting Minds Center, Aarhus University
- Linguistic Data Consortium, University of Pennsylvania
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10
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Fusaroli R, Weed E, Rocca R, Fein D, Naigles L. Caregiver linguistic alignment to autistic and typically developing children: A natural language processing approach illuminates the interactive components of language development. Cognition 2023; 236:105422. [PMID: 36871399 PMCID: PMC11223773 DOI: 10.1016/j.cognition.2023.105422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/13/2022] [Accepted: 02/23/2023] [Indexed: 03/06/2023]
Abstract
BACKGROUND Language development is a highly interactive activity. However, most research on linguistic environment has focused on the quantity and complexity of linguistic input to children, with current models showing that complexity facilitates language in both typically developing (TD) and autistic children. AIMS After reviewing existing work on caregiver engagement of children's utterances, we aim to operationalize such engagement with automated measures of linguistic alignment, thereby providing scalable tools to assess caregivers' active reuse of their children's language. By assessing the presence of alignment, its sensitivity to the child's individual differences and how well it predicts language development beyond current models across the two groups, we showcase the usefulness of the approach and provide initial empirical foundations for further conceptual and empirical investigations. METHODS We measure lexical, syntactic and semantic types of caregiver alignment in a longitudinal corpus involving 32 adult-autistic child and 35 adult-TD child dyads, with children between 2 and 5 years of age. We assess the extent to which caregivers repeat their children's words, syntax, and semantics, and whether these repetitions predict language development beyond more standard predictors. RESULTS Caregivers tend to re-use their child's language in a way that is related to the child's individual, primarily linguistic, differences. Caregivers' alignment provides unique information improving our ability to predict future language development in both typical and autistic children. CONCLUSIONS We provide evidence that language development also relies on interactive conversational processes, previously understudied. We share carefully detailed methods, and open-source scripts so as to systematically extend our approach to new contexts and languages.
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Affiliation(s)
- Riccardo Fusaroli
- Department of Linguistics, Cognitive Science and Semiotics, School of Communication and Culture, Aarhus University, Jens Chr Skous vej 2, 8000 Aarhus, Denmark; Interacting Minds Center, School of Culture and Society, Aarhus University, Jens Chr Skous vej 4, 8000 Aarhus, Denmark; Linguistic Data Consortium, University of Pennsylvania, 3600 Market St, Suite 810, Philadelphia, PA 19104-2653, USA.
| | - Ethan Weed
- Department of Linguistics, Cognitive Science and Semiotics, School of Communication and Culture, Aarhus University, Jens Chr Skous vej 2, 8000 Aarhus, Denmark; Interacting Minds Center, School of Culture and Society, Aarhus University, Jens Chr Skous vej 4, 8000 Aarhus, Denmark
| | - Roberta Rocca
- Department of Linguistics, Cognitive Science and Semiotics, School of Communication and Culture, Aarhus University, Jens Chr Skous vej 2, 8000 Aarhus, Denmark; Interacting Minds Center, School of Culture and Society, Aarhus University, Jens Chr Skous vej 4, 8000 Aarhus, Denmark
| | - Deborah Fein
- Psychological Sciences, University of Connecticut, 406 Babbidge Road, Unit 1020, Storrs, CT 0629-1020, USA
| | - Letitia Naigles
- Psychological Sciences, University of Connecticut, 406 Babbidge Road, Unit 1020, Storrs, CT 0629-1020, USA
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11
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Nguyen V, Versyp O, Cox C, Fusaroli R. A systematic review and Bayesian meta-analysis of the development of turn taking in adult-child vocal interactions. Child Dev 2022; 93:1181-1200. [PMID: 35305028 PMCID: PMC9271548 DOI: 10.1111/cdev.13754] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fluent conversation requires temporal organization between conversational exchanges. By performing a systematic review and Bayesian multi-level meta-analysis, we map the trajectory of infants' turn-taking abilities over the course of early development (0 to 70 months). We synthesize the evidence from 26 studies (78 estimates from 429 unique infants, of which at least 152 are female) reporting response latencies in infant-adult dyadic interactions. The data were collected between 1975 and 2019, exclusively in North America and Europe. Infants took on average circa 1 s to respond, and the evidence of changes in response over time was inconclusive. Infants' response latencies are related to those of their adult conversational partners: an increase of 1 s in adult response latency (e.g., 400 to 1400 ms) would be related to an increase of over 1 s in infant response latency (from 600 to 1857 ms). These results highlight the dynamic reciprocity involved in the temporal organization of turn-taking. Based on these results, we provide recommendations for future avenues of enquiry: studies should analyze how turn-by-turn exchanges develop on a longitudinal timescale, with rich assessment of infants' linguistic and social development.
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Affiliation(s)
- Vivian Nguyen
- Psychology, Ghent University, Gent, Belgium
- Department of Linguistic, Cognitive Science and Semiotics, Aarhus University, Aarhus, Denmark
| | - Otto Versyp
- Psychology, Ghent University, Gent, Belgium
- Department of Linguistic, Cognitive Science and Semiotics, Aarhus University, Aarhus, Denmark
| | - Christopher Cox
- Department of Linguistic, Cognitive Science and Semiotics, Aarhus University, Aarhus, Denmark
- The Interacting Minds Center, Aarhus University, Aarhus, Denmark
- Department of Language & Linguistic Science, University of York, York, UK
| | - Riccardo Fusaroli
- Department of Linguistic, Cognitive Science and Semiotics, Aarhus University, Aarhus, Denmark
- The Interacting Minds Center, Aarhus University, Aarhus, Denmark
- Linguistic Data Consortium, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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