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Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

775
Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
775
Language Development01:22

Language Development

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Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
329

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初级渐进性失言症的流言障碍:时间性语音参数

Lorraine Baqué1, María-Jesús Machuca2

  • 1Departament de Filologia Francesa i Romànica, Universitat Autònoma de Barcelona, Bellaterra, Spain.

Clinical linguistics & phonetics
|August 6, 2024
PubMed
概括

在初级渐进性失言症 (PPA) 中分析语音流性,为每个变体揭示了不同的时间模式. 时间语音参数,除了暂停,对于理解PPA不流性至关重要.

科学领域:

  • 神经学 神经学
  • 语音语言病理学 语言病理学

背景情况:

  • 初级渐进性失言症 (PPA) 的诊断可能具有挑战性.
  • 在PPA的流言障碍通常以异常的暂停为特征,仅限于对时间语音特征的关注.

研究的目的:

  • 为了比较PPA的三个主要变体 (logopenic, non-fluent, semantic) 和健康对照的语音相关流性参数.
  • 调查时间语音参数在表征和区分PPA亚型中的有用性.

主要方法:

  • 一个图片描述任务被用来评估43名成年人的自发言语 (13 lvPPA,10 nfvPPA,9 svPPA,11个对照组).
  • 计算了42个语音流度参数,包括音节持续时间,说话速度,间歇单位 (IPU) 持续时间和每IPU/秒的语言单位.

主要成果:

  • 每个PPA变体都表现出独特的异常语音特征,表明了各种潜在缺陷.
  • 在42个参数中,有37个用于描述PPA流失,35个用于区分变体.
  • 没有单一的参数可以区分PPA组,突出显示失流的多维性质.

结论:

  • 时间语音参数,除了暂停,提供一个全面的了解PPA不流.
  • 多参数分析对于准确地描述和区分PPA亚型是必不可少的,因为失流的复杂性.
关键词:
主要的渐进性失语症.流动性的流性演讲 演讲 演讲 演讲演讲片段的部分部分.时间参数时间参数

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