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语法复杂性和生产力在书面文本在前兆前性痴呆症:一项重复测量研究研究

Fredrik Sand Aronsson^1,2, Linn Öijerstedt^3,4, Vesna Jelic^5,6

¹Department of Clinical Science, Intervention and Technology, Division of Speech and Language Pathology, Stockholm, Sweden.

International journal of speech-language pathology

|January 10, 2026

概括

前性痴呆症 (FTD) 突变的预症状携带者在书面任务中比非携带者产生更多的单词. 然而,没有检测到语法复杂性的差异,这表明遗传FTD的早期语言变化微妙.

科学领域:

神经科学是一个神经科学.
遗传学是一个遗传学.
语言学的语言学.

背景情况:

前性痴呆 (FTD) 是一种神经退行性疾病,影响行为,语言和运动技能.
FTD的遗传形式是由特定的基因突变引起的,为疾病机制提供了洞察力.
在症状前的个体中,早期发现认知变化对于了解疾病进展至关重要.

研究的目的:

调查FTD突变的预症状载体与非载体对照之间的写作表现差异.
评估书面语言中语法复杂性和生产力的变化.
识别遗传性FTD的潜在早期语言标记物.

主要方法:

在基因前性痴呆症倡议的42名参与者的书面图片描述和句子的自动化分析.
在三个时间点计算平均依赖距离和单词数量.
使用线性混合模型对文字测量进行比较,考虑突变状态和年龄.

主要成果:

与非携带者相比,症状前的FTD突变携带者在书面图片描述中产生了更高的字数.
观察到遗传状态和年龄之间存在显著的相互作用.
在平均依赖距离上没有发现显著差异,这表明语法复杂性没有变化.

结论:

有限的证据表明,在前症状FTD突变携带者和对照者之间,书面语言存在微妙的差异.
在遗传性FTD中,认知变化可能会在症状发作更接近时表现出来.
目前的语言测量可能不足以检测FTD的症状前变化.

关键词:

自动化文本分析系统平均依赖距离的距离前性痴呆症前性痴呆症反复采取措施反复采取措施.语法语法语法语法语法语法写作写作写作写作

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