Pub Date : 2026-05-01Epub Date: 2026-01-14DOI: 10.1016/j.jecp.2025.106448
John Dunlosky, Bradley J Morris, Clarissa A Thompson
Main goals of the Numerical Understanding Mentored by Expert Researchers (NUMBERs) Workshop were to (A) identify key areas for math intervention research to promote systematic research in this area, (B) highlight research aligned with developing effective math interventions, and (C) provide a bird's eye perspective on building effective math interventions and broadening the research communities that strive to build them. During this workshop, mentor-and-mentee teams worked toward accomplishing these goals, which resulted in this Special Issue to inspire further progress in the field of mathematical cognition. In this brief overview of the NUMBERS workshop, we offer some details on the development of the workshop itself (to support others who may want to conduct similar workshops in their research domains) and briefly highlight some of the main themes of the workshop and articles within the special issue.
{"title":"Numerical Understanding Mentored by Expert Researchers (NUMBERs) workshop: Special issue overview.","authors":"John Dunlosky, Bradley J Morris, Clarissa A Thompson","doi":"10.1016/j.jecp.2025.106448","DOIUrl":"10.1016/j.jecp.2025.106448","url":null,"abstract":"<p><p>Main goals of the Numerical Understanding Mentored by Expert Researchers (NUMBERs) Workshop were to (A) identify key areas for math intervention research to promote systematic research in this area, (B) highlight research aligned with developing effective math interventions, and (C) provide a bird's eye perspective on building effective math interventions and broadening the research communities that strive to build them. During this workshop, mentor-and-mentee teams worked toward accomplishing these goals, which resulted in this Special Issue to inspire further progress in the field of mathematical cognition. In this brief overview of the NUMBERS workshop, we offer some details on the development of the workshop itself (to support others who may want to conduct similar workshops in their research domains) and briefly highlight some of the main themes of the workshop and articles within the special issue.</p>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":" ","pages":"106448"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145991177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-07DOI: 10.1016/j.jecp.2026.106469
Li Ma, Jinlong Cui, Hanya Wang, Weihai Tang, Xiping Liu
Experiment 1 employed a 4 × 2 × 2 mixed design to examine the effects of cooperative interactive games on VPT in children aged 5-8 years. Results demonstrated that: Cooperative interaction significantly enhanced VPT performance, with children exhibiting reduced egocentric responses. Experiment 2 adopted a within-subject design to evaluate long-term effects, revealing that gains diminished after one week and declined below post-intervention levels by three weeks. These findings provide novel evidence for theories of VPT development and social interventions.
{"title":"The short-term and long-term effects of cooperative interaction on children's perspective-taking.","authors":"Li Ma, Jinlong Cui, Hanya Wang, Weihai Tang, Xiping Liu","doi":"10.1016/j.jecp.2026.106469","DOIUrl":"https://doi.org/10.1016/j.jecp.2026.106469","url":null,"abstract":"<p><p>Experiment 1 employed a 4 × 2 × 2 mixed design to examine the effects of cooperative interactive games on VPT in children aged 5-8 years. Results demonstrated that: Cooperative interaction significantly enhanced VPT performance, with children exhibiting reduced egocentric responses. Experiment 2 adopted a within-subject design to evaluate long-term effects, revealing that gains diminished after one week and declined below post-intervention levels by three weeks. These findings provide novel evidence for theories of VPT development and social interventions.</p>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"266 ","pages":"106469"},"PeriodicalIF":2.0,"publicationDate":"2026-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146144236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-06DOI: 10.1016/j.jecp.2026.106467
Wallace E Dixon
This introductory article situates twelve empirical studies included in the special issue Integrating Adverse and Positive Childhood Experiences into Experimental Developmental Science within a framework that bridges public health and developmental science perspectives on early adversity and buffering experiences. The special issue highlights how experimental and developmental researchers can both contribute to, and benefit from, the public health framework that gave rise to the study of adverse childhood experiences (ACEs) and positive childhood experiences (PCEs). Drawing on Kim and Royle's (2025) taxonomy, which organizes ACEs research by analytic treatment and developmental outcome domain, the included studies illustrate the varied ways that adversity and buffering experiences influence biological, cognitive, physical, psychological, and social functioning. Together, these contributions underscore the value of bridging epidemiological and experimental traditions, encouraging future developmental work that connects mechanisms of risk and resilience at the individual level with population-level applications in prevention, policy, and practice.
{"title":"Integrating adverse and positive childhood experiences into experimental developmental science: introduction to the special issue.","authors":"Wallace E Dixon","doi":"10.1016/j.jecp.2026.106467","DOIUrl":"https://doi.org/10.1016/j.jecp.2026.106467","url":null,"abstract":"<p><p>This introductory article situates twelve empirical studies included in the special issue Integrating Adverse and Positive Childhood Experiences into Experimental Developmental Science within a framework that bridges public health and developmental science perspectives on early adversity and buffering experiences. The special issue highlights how experimental and developmental researchers can both contribute to, and benefit from, the public health framework that gave rise to the study of adverse childhood experiences (ACEs) and positive childhood experiences (PCEs). Drawing on Kim and Royle's (2025) taxonomy, which organizes ACEs research by analytic treatment and developmental outcome domain, the included studies illustrate the varied ways that adversity and buffering experiences influence biological, cognitive, physical, psychological, and social functioning. Together, these contributions underscore the value of bridging epidemiological and experimental traditions, encouraging future developmental work that connects mechanisms of risk and resilience at the individual level with population-level applications in prevention, policy, and practice.</p>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"266 ","pages":"106467"},"PeriodicalIF":2.0,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146137967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Executive function (EF), a set of cognitive processes essential for goal-directed behaviors, plays a vital role in cognitive and socioemotional development. Although previous research using performance-based tasks suggests that EF shifts from a unitary construct to a more multidimensional structure across childhood, these tasks often lack ecological validity. To address this, we investigated whether similar age-related differences could be observed using behavioral ratings. EF was assessed with the Behavioral Rating Inventory of Executive Function-2 (BRIEF-2) in a normative Dutch-speaking sample of children aged 5 to 12 years. Network analysis was the primary analytic approach, complemented by confirmatory factor analysis, to examine the structural differentiation of EF based on teacher reports (N = 1,110) and parent reports (N = 1,271). The results indicated that in teacher-reported networks, behaviors from inhibition and working memory components tended to show higher centrality, whereas in parent-reported networks, central behaviors spanned all three components, including shifting. Furthermore, each EF component appeared to include one or more connector hub behaviors, which showed relatively strong connections both within and across EF components. In terms of structural differentiation, both network analysis and confirmatory factor analysis provided converging evidence that EF was more differentiated in older compared to younger children, a pattern that was evident in parent-reported but not teacher-reported data. This study underscores the importance of multi-informant assessments and highlights the utility of combining network and latent variable approaches to capture age-related differences in EF structure in real-world settings.
{"title":"Age-related differences in the structure of executive function across childhood: evidence from behavioral ratings.","authors":"Xiaoyu Zhan, Wouter Weeda, Mariëtte Huizinga, Dieter Baeyens","doi":"10.1016/j.jecp.2026.106470","DOIUrl":"https://doi.org/10.1016/j.jecp.2026.106470","url":null,"abstract":"<p><p>Executive function (EF), a set of cognitive processes essential for goal-directed behaviors, plays a vital role in cognitive and socioemotional development. Although previous research using performance-based tasks suggests that EF shifts from a unitary construct to a more multidimensional structure across childhood, these tasks often lack ecological validity. To address this, we investigated whether similar age-related differences could be observed using behavioral ratings. EF was assessed with the Behavioral Rating Inventory of Executive Function-2 (BRIEF-2) in a normative Dutch-speaking sample of children aged 5 to 12 years. Network analysis was the primary analytic approach, complemented by confirmatory factor analysis, to examine the structural differentiation of EF based on teacher reports (N = 1,110) and parent reports (N = 1,271). The results indicated that in teacher-reported networks, behaviors from inhibition and working memory components tended to show higher centrality, whereas in parent-reported networks, central behaviors spanned all three components, including shifting. Furthermore, each EF component appeared to include one or more connector hub behaviors, which showed relatively strong connections both within and across EF components. In terms of structural differentiation, both network analysis and confirmatory factor analysis provided converging evidence that EF was more differentiated in older compared to younger children, a pattern that was evident in parent-reported but not teacher-reported data. This study underscores the importance of multi-informant assessments and highlights the utility of combining network and latent variable approaches to capture age-related differences in EF structure in real-world settings.</p>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"266 ","pages":"106470"},"PeriodicalIF":2.0,"publicationDate":"2026-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146137969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-05DOI: 10.1016/j.jecp.2026.106473
Urvi Maheshwari, Jessica Sullivan, David Barner
Recent studies (Cheung et al., 2017; Chu et al., 2020; Sullivan et al., 2023) argue that children may infer the existence of infinite magnitudes through experience with number words, which provide a system of rules for generating ever-larger numbers. We tested this hypothesis by investigating the development of children's infinity beliefs in two languages - English and Hindi - whose counting systems differ with respect to the transparency of their rules. In a study with 240 four- to eight-year-old children, we found that children who learn to count in English (n = 120) demonstrated both greater counting proficiency and better understanding of the successor relations between numbers relative to children who learn to count in Hindi (n = 120). We also found that children's infinity beliefs were associated with their mastery of the verbal count list, but the proportion of children who endorsed the belief that numbers are infinite did not differ across languages. We conclude that transparency of the linguistic structure of a counting system may be important for understanding the rules governing counting, but in contrast to previous studies, suggest that the direct relationship between these rules and beliefs about the boundless nature of number words may be weak. The implications of these findings and avenues for future research are discussed.
最近的研究(张et al., 2017; Chu et al., 2020; Sullivan et al., 2023)认为,儿童可能通过数字词的经验推断出无限数量级的存在,这为生成越来越大的数字提供了一套规则系统。我们通过调查儿童在英语和印地语两种语言中无限信念的发展来验证这一假设,这两种语言的计数系统在规则的透明度方面有所不同。在一项针对240名4至8岁儿童的研究中,我们发现学习英语数数的儿童(n = 120)与学习印地语数数的儿童(n = 120)相比,既表现出更强的计数能力,也更好地理解数字之间的后继关系。我们还发现,儿童的无限信念与他们对口头数数表的掌握有关,但赞同数字是无限信念的儿童比例在不同语言中没有差异。我们得出结论,计数系统语言结构的透明度可能对理解控制计数的规则很重要,但与之前的研究相比,我们认为这些规则与关于数字词无限本质的信念之间的直接关系可能很弱。讨论了这些发现的意义和未来研究的途径。
{"title":"Counting without end: A cross-linguistic exploration of infinity beliefs in English and Hindi learners.","authors":"Urvi Maheshwari, Jessica Sullivan, David Barner","doi":"10.1016/j.jecp.2026.106473","DOIUrl":"https://doi.org/10.1016/j.jecp.2026.106473","url":null,"abstract":"<p><p>Recent studies (Cheung et al., 2017; Chu et al., 2020; Sullivan et al., 2023) argue that children may infer the existence of infinite magnitudes through experience with number words, which provide a system of rules for generating ever-larger numbers. We tested this hypothesis by investigating the development of children's infinity beliefs in two languages - English and Hindi - whose counting systems differ with respect to the transparency of their rules. In a study with 240 four- to eight-year-old children, we found that children who learn to count in English (n = 120) demonstrated both greater counting proficiency and better understanding of the successor relations between numbers relative to children who learn to count in Hindi (n = 120). We also found that children's infinity beliefs were associated with their mastery of the verbal count list, but the proportion of children who endorsed the belief that numbers are infinite did not differ across languages. We conclude that transparency of the linguistic structure of a counting system may be important for understanding the rules governing counting, but in contrast to previous studies, suggest that the direct relationship between these rules and beliefs about the boundless nature of number words may be weak. The implications of these findings and avenues for future research are discussed.</p>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"266 ","pages":"106473"},"PeriodicalIF":2.0,"publicationDate":"2026-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146133317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-04DOI: 10.1016/j.jecp.2026.106471
Riku Umekawa , So Kanazawa , Masami K. Yamaguchi
This study investigated whether children aged 6–12 years would perceive Rubin’s vase similar to adults or infants. Previous studies on adults and infants used three types of Rubin’s vase: original Rubin’s vase, two-color-faces (with dark and light gray on the right and left profiles respectively), and stripe-faces (with a striped pattern on the profiles). Adults perceived the faces in the two-color-faces, the vase in the stripe-faces, and faces and vase equally in the original Rubin’s vase. By contrast, infants perceived a vase in all Rubin’s vases. We hypothesized that children would be more likely to perceive the faces in the original Rubin’s vase and two-color-faces, but be less likely to perceive the face in the stripe-faces, similar to adults. We presented the three types of Rubin’s vase for children and adults and measured the total durations of perceiving the faces or vase. We calculated the face ratio as the total duration perceiving the face/the total duration perceiving the face and vase, and counted the number of perceptual reversals. The results showed that the two-color-faces was perceived as faces, the stripe-faces was perceived as a vase, and the original Rubin’s vase was perceived as faces and vase equally for 6–12 years children and adults. The number of perceptual reversals differed between children and adults only for stripe-faces. These findings offer experimental evidence that while the perceptual reversals in children differed slightly from adults, children’s ambiguous figure perception could be in accordance with the manipulations of Rubin’s vase types.
{"title":"Do children see faces or a vase in Rubin’s vase?","authors":"Riku Umekawa , So Kanazawa , Masami K. Yamaguchi","doi":"10.1016/j.jecp.2026.106471","DOIUrl":"10.1016/j.jecp.2026.106471","url":null,"abstract":"<div><div>This study investigated whether children aged 6–12 years would perceive Rubin’s vase similar to adults or infants. Previous studies on adults and infants used three types of Rubin’s vase: original Rubin’s vase, two-color-faces (with dark and light gray on the right and left profiles respectively), and stripe-faces (with a striped pattern on the profiles). Adults perceived the faces in the two-color-faces, the vase in the stripe-faces, and faces and vase equally in the original Rubin’s vase. By contrast, infants perceived a vase in all Rubin’s vases. We hypothesized that children would be more likely to perceive the faces in the original Rubin’s vase and two-color-faces, but be less likely to perceive the face in the stripe-faces, similar to adults. We presented the three types of Rubin’s vase for children and adults and measured the total durations of perceiving the faces or vase. We calculated the face ratio as the total duration perceiving the face/the total duration perceiving the face and vase, and counted the number of perceptual reversals. The results showed that the two-color-faces was perceived as faces, the stripe-faces was perceived as a vase, and the original Rubin’s vase was perceived as faces and vase equally for 6–12 years children and adults. The number of perceptual reversals differed between children and adults only for stripe-faces. These findings offer experimental evidence that while the perceptual reversals in children differed slightly from adults, children’s ambiguous figure perception could be in accordance with the manipulations of Rubin’s vase types.</div></div>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"266 ","pages":"Article 106471"},"PeriodicalIF":2.0,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146116661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1016/j.jecp.2026.106468
Paul Deutchman , Emma Sansom , Julia Marshall , Young-eun Lee , Felix Warneken , Katherine McAuliffe
How do children integrate descriptive norms about how others commonly behave with their injunctive norm beliefs about how they should behave? Does this relationship vary depending on the type of normative behavior? We investigated these questions in 6–9-year-olds (N = 234) from the US in two preregistered studies. In Study 1, we examined whether children’s injunctive beliefs, moral evaluations, behavioral intentions, and punishment ratings were influenced by descriptive norm information that a behavior is relatively common or uncommon. In Study 2, we tested whether children updated their own beliefs in response to descriptive norm information using a within-subject, pre-post design. We also explored whether the influence of descriptive norm information varies by the type of normative behavior (Studies 1 & 2: negatively valenced conventional, positively valenced conventional, personal preferences; Study 1 only: COVID19 health behaviors). Across both studies, we found that by 6 years of age, children integrated descriptive norm information such that their average belief ratings were influenced more by common than uncommon descriptive norms for all behaviors except personal preferences. In contrast to our predictions, children did not consistently update their prior beliefs in response to novel descriptive norm information. However, when they did update, they did so to different extents depending on the normative belief measure, type of behavior, and its frequency. Our findings suggest that, by middle-childhood, children’s injunctive norm and moral beliefs are influenced by the frequency of descriptive normative information and, more broadly, point to the bottom-up influences of children’s normative beliefs.
{"title":"Descriptive norms influence children’s injunctive and moral norm beliefs","authors":"Paul Deutchman , Emma Sansom , Julia Marshall , Young-eun Lee , Felix Warneken , Katherine McAuliffe","doi":"10.1016/j.jecp.2026.106468","DOIUrl":"10.1016/j.jecp.2026.106468","url":null,"abstract":"<div><div>How do children integrate descriptive norms about how others <em>commonly</em> behave with their injunctive norm beliefs about how they <em>should</em> behave? Does this relationship vary depending on the type of normative behavior? We investigated these questions in 6–9-year-olds (N = 234) from the US in two preregistered studies. In Study 1, we examined whether children’s injunctive beliefs, moral evaluations, behavioral intentions, and punishment ratings were influenced by descriptive norm information that a behavior is relatively common or uncommon. In Study 2, we tested whether children updated their own beliefs in response to descriptive norm information using a within-subject, pre-post design. We also explored whether the influence of descriptive norm information varies by the type of normative behavior (Studies 1 & 2: negatively valenced conventional, positively valenced conventional, personal preferences; Study 1 only: COVID19 health behaviors). Across both studies, we found that by 6 years of age, children integrated descriptive norm information such that their average belief ratings were influenced more by common than uncommon descriptive norms for all behaviors except personal preferences. In contrast to our predictions, children did not consistently update their prior beliefs in response to novel descriptive norm information. However, when they did update, they did so to different extents depending on the normative belief measure, type of behavior, and its frequency. Our findings suggest that, by middle-childhood, children’s injunctive norm and moral beliefs are influenced by the frequency of descriptive normative information and, more broadly, point to the bottom-up influences of children’s normative beliefs.</div></div>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"265 ","pages":"Article 106468"},"PeriodicalIF":2.0,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-30DOI: 10.1016/j.jecp.2026.106465
Miguel Ayala-Cuesta, Pedro Macizo
The current study aimed to evaluate the developmental course of the interplay between the componential analysis of two-digit numbers, the conflict associated with magnitude processing, and the possible inhibitory mechanism used to resolve interference. To this end, children aged 7–11 years-old performed a magnitude comparison task involving two-digit numbers in sequences of two trials. The first trial involved compatible comparisons where the decade and the unit of one number were larger than those of the other number (i.e., 21–73), or incompatible comparisons where the decade of one number was larger but the unit was smaller than those of the other number (i.e., 61–53). The second trial involved related number pairs that contained the previously presented units (i.e., 41–43) or unrelated number pairs with units that had not appeared before (i.e., 48–49). Performance in the first trial was worse in incompatible trials than in compatible trials, and this compatibility effect increased with age. In the second trial, performance in related trials after incompatible trials was worse than in unrelated trials and this relation effect was found in all age groups. These results suggest that the development of numerical knowledge fosters the componential-parallel processing of multidigit numbers and that children need time to overcome inhibition after conflict resolution.
{"title":"Developmental traces of cognitive control on the processing of symbolic magnitude","authors":"Miguel Ayala-Cuesta, Pedro Macizo","doi":"10.1016/j.jecp.2026.106465","DOIUrl":"10.1016/j.jecp.2026.106465","url":null,"abstract":"<div><div>The current study aimed to evaluate the developmental course of the interplay between the componential analysis of two-digit numbers, the conflict associated with magnitude processing, and the possible inhibitory mechanism used to resolve interference. To this end, children aged 7–11 years-old performed a magnitude comparison task involving two-digit numbers in sequences of two trials. The first trial involved compatible comparisons where the decade and the unit of one number were larger than those of the other number (i.e., 21–73), or incompatible comparisons where the decade of one number was larger but the unit was smaller than those of the other number (i.e., 61–53). The second trial involved related number pairs that contained the previously presented units (i.e., 41–43) or unrelated number pairs with units that had not appeared before (i.e., 48–49). Performance in the first trial was worse in incompatible trials than in compatible trials, and this compatibility effect increased with age. In the second trial, performance in related trials after incompatible trials was worse than in unrelated trials and this relation effect was found in all age groups. These results suggest that the development of numerical knowledge fosters the componential-parallel processing of multidigit numbers and that children need time to overcome inhibition after conflict resolution.</div></div>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"265 ","pages":"Article 106465"},"PeriodicalIF":2.0,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-27DOI: 10.1016/j.jecp.2026.106466
Daniela Avila-Varela , Francesco Cabiddu , Anira Escrichs , Paula Luegi , João Veríssimo , Gary Jones
Research shows that as toddlers’ vocabularies expand, words in the early lexicon become increasingly interconnected through shared phonological and semantic features. Understanding how these dimensions jointly shape lexical organization is central to theories of early spoken word recognition. The present study investigated how the simultaneous presence of phonological and semantic similarity between nouns influences lexical activation during spoken word recognition. We presented 21-month-old English monolinguals with an intermodal preferential looking task adapted to a priming paradigm while their eye movements were recorded with an eye-tracker. Participants heard a spoken noun (prime) followed by a related or unrelated spoken noun (target). The experiment included three conditions: Phonologically Related, where prime-target pairs share the initial phonemes (e.g., toe-toast); Phono-Semantically Related, where prime-target pairs share the initial phonemes and belong to the same semantic category (e.g., turkey-turtle); and Unrelated, where prime-target pairs do not share the initial phonemes and do not belong to the same semantic category (e.g., bubble-toast and box-turtle). Results revealed two key findings: (1) Targets in the Phonologically Related condition elicited significantly fewer looks than the Unrelated condition, suggesting phonological interference. (2) Targets in the Phono-Semantically Related condition elicited significantly more looks than both the Unrelated and Phonologically Related conditions, indicating strong facilitation when both cues are present. Additionally, girls demonstrated more pronounced word recognition than boys. This study extends our understanding of the interactive roles of phonological and semantic cues, as well as sex differences, in mental lexical organization among young toddlers.
{"title":"Semantic support and sex differences in toddlers’ spoken word recognition","authors":"Daniela Avila-Varela , Francesco Cabiddu , Anira Escrichs , Paula Luegi , João Veríssimo , Gary Jones","doi":"10.1016/j.jecp.2026.106466","DOIUrl":"10.1016/j.jecp.2026.106466","url":null,"abstract":"<div><div>Research shows that as toddlers’ vocabularies expand, words in the early lexicon become increasingly interconnected through shared phonological and semantic features. Understanding how these dimensions jointly shape lexical organization is central to theories of early spoken word recognition. The present study investigated how the simultaneous presence of phonological and semantic similarity between nouns influences lexical activation during spoken word recognition. We presented 21-month-old English monolinguals with an intermodal preferential looking task adapted to a priming paradigm while their eye movements were recorded with an eye-tracker. Participants heard a spoken noun (<em>prime</em>) followed by a related or unrelated spoken noun (<em>target</em>). The experiment included three conditions: Phonologically Related, where prime-target pairs share the initial phonemes (e.g., <em>toe-toast</em>); Phono-Semantically Related, where prime-target pairs share the initial phonemes and belong to the same semantic category (e.g., <em>turkey-turtle</em>); and Unrelated, where prime-target pairs do not share the initial phonemes and do not belong to the same semantic category (e.g<em>., bubble-toast</em> and <em>box-turtle</em>). Results revealed two key findings: (1) Targets in the Phonologically Related condition elicited significantly fewer looks than the Unrelated condition, suggesting phonological interference. (2) Targets in the Phono-Semantically Related condition elicited significantly more looks than both the Unrelated and Phonologically Related conditions, indicating strong facilitation when both cues are present. Additionally, girls demonstrated more pronounced word recognition than boys. This study extends our understanding of the interactive roles of phonological and semantic cues, as well as sex differences, in mental lexical organization among young toddlers.</div></div>","PeriodicalId":48391,"journal":{"name":"Journal of Experimental Child Psychology","volume":"265 ","pages":"Article 106466"},"PeriodicalIF":2.0,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-01-26DOI: 10.1016/j.jecp.2026.106464
Fernando Sánchez Hernández , Daniel Hyde
When and how children begin responding to inequitable resource distributions, particularly those that put them at a disadvantage, remains unclear. Across two studies, an initial pilot experiment (N = 39) and a pre-registered follow-up experiment (N = 80), we employed modified versions of the Inequity Game to test implicit sensitivity and explicit response decisions to various disadvantageous offers in groups of 2- and 4-year-old children. Across experiments, both age groups showed evidence of sensitivity to disadvantageous offers that provided them nothing while their partner received resources (e.g. 0 vs. 3). However, only 4-year-olds were willing to forgo offerings involving personal gain (e.g., 1 vs. 3) to protest unfair treatment, a hallmark of disadvantageous inequity aversion. These findings suggest that sensitivity to disadvantageous offers emerges as early as the second year of life, but this sensitivity develops into disadvantageous inequity aversion over subsequent years.
儿童何时以及如何开始应对不公平的资源分配,特别是那些使他们处于不利地位的资源分配,目前尚不清楚。在两项研究中,一项初始先导实验(N = 39)和一项预注册后续实验(N = 80),我们采用修改版本的不平等游戏来测试两组2岁和4岁儿童对各种不利条件的内隐敏感性和外显反应决策。在实验中,两个年龄组都表现出对不利条件的敏感性,即当他们的伴侣获得资源时,他们什么也没有提供(例如0 vs. 3)。然而,只有4岁的孩子愿意放弃涉及个人利益的礼物(例如,1 vs. 3)来抗议不公平待遇,这是不利的不公平厌恶的标志。这些发现表明,对不利条件的敏感性早在生命的第二年就出现了,但这种敏感性在随后的几年里发展成不利的不平等厌恶。
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