自闭症语言学习者的小世界谱网络分析。

IF 5.6 2区 医学 Q1 BEHAVIORAL SCIENCES
Autism Research Pub Date : 2025-06-02 DOI:10.1002/aur.70065
Eileen Haebig, Stanley West, Eva Jiménez, Thomas T. Hills, Christopher R. Cox
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引用次数: 0

摘要

最近的词汇增长网络分析揭示了语义环境结构与非自闭症儿童早期词汇习得之间的重要关系。然而,自闭症儿童可能不太可能对新物体的相关特征进行编码,这表明获取单词语义信息的过程存在差异。我们检查了815名非自闭症儿童和163名自闭症儿童的表达词汇(产生的单词:孤独症= 183.06,非自闭症= 182.91)。我们使用网络分析来估计它们的语义发展轨迹。网络结构以儿童为导向的词联想为基础。我们根据程度、平均最短路径长度、聚类系数和小世界倾向(整体上有助于“小世界”网络结构的特征)来分析网络。分析表明,自闭症儿童和非自闭症儿童对语义环境的结构都很敏感。然而,我们观察到组间的差异,自闭症组的聚类系数(单词组之间的联系有多紧密)在早期达到峰值,随后急剧下降。此外,在每个网络度量中,我们发现自闭症儿童相对于非自闭症幼儿的小世界结构减少。因此,群体差异表明,虽然自闭症儿童从他们的语义环境中学习,但他们对语义环境的处理可能不同,他们所接触的语言输入相对于非自闭症儿童不同,或者两者兼而有之。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Network Analysis of Autistic Language Learners Along the Small World Spectrum

Recent network analyses of vocabulary growth revealed important relationships between the structure of the semantic environment and early vocabulary acquisition in non-autistic children. However, autistic children may be less likely to encode associated features of novel objects, suggesting divergent processes for acquiring semantic information about words. We examined the expressive vocabularies of 815 non-autistic and 163 autistic children (words produced: MAutistic = 183.06, MNon-autistic = 182.91). We estimated their trajectories of semantic development using network analyses. Network structure was based on child-oriented word associations. We analyzed networks according to indegree, average shortest path length, clustering coefficient, and small-world propensity (features holistically contributing to “small-world” network structure). Analyses revealed that autistic and non-autistic children are sensitive to the structure of their semantic environment. However, group differences were observed, with an early peak in the autistic group's clustering coefficient (how closely connected groups of words are), followed by a sharp decline. Moreover, across each network metric, we found that autistic children had reduced small-world structure relative to non-autistic toddlers. Thus, group differences indicate that, although autistic children are learning from their semantic environment, they may be processing their semantic environment differently, the language input to which they are exposed differs relative to non-autistic children, or a combination of the two.

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来源期刊
Autism Research
Autism Research 医学-行为科学
CiteScore
8.00
自引率
8.50%
发文量
187
审稿时长
>12 weeks
期刊介绍: AUTISM RESEARCH will cover the developmental disorders known as Pervasive Developmental Disorders (or autism spectrum disorders – ASDs). The Journal focuses on basic genetic, neurobiological and psychological mechanisms and how these influence developmental processes in ASDs.
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