在初级渐进性失言症中,名词和动词的语音,语义和环境命名错误的模式
Aaron M Meyer1, Sarah F Snider1, Donna C Tippett2,3,4
1Center for Aphasia Research and Rehabilitation, Georgetown University Medical Center.
Aphasiology
|May 30, 2025
概括
语义命名错误在初级渐进性失言症 (PPA) 亚型和阿尔茨海默病 (AD) 中很普遍,挑战诊断标准. 在任何PPA亚型中,语音错误并不比语义错误更常见.
科学领域:
- 神经学 神经学
- 语言学的语言学.
- 神经成像是一种神经成像.
背景情况:
- 语音原发性渐进性失言症 (lvPPA) 的诊断标准包括声学语音错误,但缺乏证据.
- 很少有研究研究了初级渐进性失言症 (PPA) 的命名错误模式.
研究的目的:
- 检查PPA亚型和典型的阿尔茨海默病 (AD) 的名词和动词的命名错误模式 (语音,语义,外语).
- 为了研究命名错误和PPA参与者的大脑体积之间的关系.
主要方法:
- 在284个名词和116个动词图片中分析了35名PPA参与者和4名AD参与者的命名错误.
- 使用反复测量ANCOVA来比较诊断亚型中的错误类型.
- 使用20名参与者的MRI数据,在10个感兴趣的左半球区域 (ROI) 中与大脑体积相关联命名错误.
主要成果:
- 在语义PPA (svPPA),不可分类PPA (uPPA) 和典型的AD中,语义错误比名词和动词的语音错误更为常见.
- 在lvPPA中,语音错误比动词的语义错误少.
- 在绕口错误和左/形旋转体积之间,以及在语义错误和左上极体积之间,发现了负相关性.
结论:
- 语义命名错误在PPA亚型和AD中很常见,可能需要修改诊断标准.
- 在任何PPA亚型中,语音命名错误并不比语义错误更为普遍.
- 包括左叶和胰岛在内的大脑区域与特定的命名错误类型有关.
更多相关视频
06:48Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Published on: June 25, 2019
9.7K
05:38Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
Published on: June 29, 2021
2.8K
相关概念视频
Higher Mental Functions of the Brain: Language
3.5K
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...
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...
3.5K
Prosopagnosia
703
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
703
Language Development
855
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...
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...
855
Tip-of-the-Tongue Phenomenon
489
The tip-of-the-tongue (TOT) phenomenon is a cognitive experience characterized by a temporary inability to retrieve specific information from memory despite having a strong feeling of knowing the information. Although individuals cannot access the target word or detail, they frequently recall related elements, such as its initial letter, syllable count, or context. This partial retrieval often causes frustration, as one might recognize a familiar face or know that a name starts with a specific...
489
Visual Agnosia
981
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
981
Positive Symptoms of Schizophrenia: Hallucinations and Delusions
566
Schizophrenia is a complex mental health disorder that can manifest with various positive symptoms, including thought, movement, and behavior disorders. These symptoms significantly disrupt cognitive and motor functions, leading to profound effects on an individual's ability to engage with the world.
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
Thought Disorders
Disorganized and unusual thought processes mark thought disorders in schizophrenia. One key feature is disorganized speech, where an individual's conversation includes...
566
