临床表现 临床表现
Marco Calabria1, María Sainz-Pardo2, Mireia Hernández3
1Faculty of Health Sciences, Universitat Oberta de Catalunya, Barcelona, Barcelona, Spain.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
患有轻度认知障碍 (MCI) 和阿尔茨海默氏症 (AD) 的双语者表现出增加的命名困难,尤其是低频词. 这种影响随着疾病的严重程度而加剧,无论双语类型如何.
科学领域:
- 神经科学是一个神经科学.
- 心理语言学 心理语言学
- 认知科学 认知科学
背景情况:
- 双语影响语音的产生,特别是健康个体的低频词.
- 对轻度认知障碍 (MCI) 和阿尔茨海默病 (AD) 的双语者进行的研究有限.
- 这项研究考察了加泰罗尼亚语和西班牙语双语者与MCI和AD,比较主动和被动双语者.
研究的目的:
- 调查双语对MCI和AD中的单词命名的影响.
- 分析基于单词频率和语音重叠的命名延迟和准确性.
- 在主动和被动双语者之间比较命名性能.
主要方法:
- 124名MCI患者,66名AD患者和58名健康成年人参与了这项研究.
- 参与者被分为积极的 (高水平) 或被动的 (低水平) 加泰罗尼亚语和西班牙语双语者.
- 采用了图片命名任务,使用不同的单词频率和相关状态.
主要成果:
- 命名延迟从健康的成年人显著增加到MCI,并进一步到AD.
- 准确性从健康成年人到MCI显著下降,并进一步到AD.
- 双语的类型 (主动与被动) 并没有影响频率效应.
结论:
- 这些发现挑战了临床人群中双语语言生产的现有模型.
- 被动双语者经常接触第二语言可能会改变认知/语言处理.
- 需要进一步的研究,以了解语言背景对具有认知衰退的双语者的影响.
相关概念视频
Chronic Kidney Disease II: Clinical Manifestations
520
Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
520
Coronary Artery Disease III: Clinical Manifestations
299
Coronary Artery Disease (CAD) is a primary health risk worldwide, leading to significant morbidity and mortality. The condition arises from the buildup of atherosclerotic plaques within the coronary arteries, resulting in diminished blood supply to the heart muscle.The clinical manifestations of CAD vary widely, from asymptomatic stages to severe, life-threatening conditions. Understanding these manifestations is crucial for early diagnosis and effective management.Angina Pectoris: The Warning...
299
Endocarditis II: Clinical Features of Infective Endocarditis
364
Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
364
Heart Failure III: Clinical Manifestations
436
Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
436
Gastroesophageal Reflux Disease II: Clinical Features and Management
652
Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
Clinical Manifestations
GERD presents itself in a multitude of ways, with symptoms varying from person to person. The hallmark symptoms are...
Clinical Manifestations
GERD presents itself in a multitude of ways, with symptoms varying from person to person. The hallmark symptoms are...
652
Hypertension III: Clinical Manifestations and Diagnostic Studies
437
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
437


