相关实验视频
Updated: Jun 19, 2026

07:52
Revised and Neuroimaging-Compatible Versions of the Dual Task Screen
Published on: October 5, 2020
在Ménière病的双重任务期间的功能过载和适应性失败
Mehmet Can1,2, Soner Türüdü3,4, Zehra Aydoğan5
1Audiometry Program, Vocational School of Health Services, Karamanoğlu Mehmetbey University, Karaman, Türkiye.
Journal of vestibular research : equilibrium & orientation
|January 19, 2026
概括
患有梅涅尔病 (MD) 的人经历认知运动干扰,特别是在要求视觉空间和执行任务时. 这项研究表明,在双重任务条件下选择性认知减速,不会影响姿势稳定性.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 听力学 听力学是指听力学.
背景情况:
- 众所周知,Ménière病 (MD) 会影响认知功能.
- 在MD中认知运动干扰的确切性质尚不清楚.
- 了解双重任务的表现对于评估MD的影响至关重要.
研究的目的:
- 与健康对照组相比,研究MD患者的双重任务性能.
- 在结合的认知和姿势负荷下检查认知运动干扰.
- 在MD中确定受双重任务影响的特定认知领域.
主要方法:
- 采用了一种双任务模式,将计算机化动态姿势学 (CDP) 与认知测试电池相结合.
- 在各种姿势困难中评估视觉空间,执行和工作记忆功能 (感官组织测试 - SOT).
- 分析了29名MD患者和29名对照组的使用混合效应模型的性能数据.
主要成果:
- 在MD患者中观察到显著的双重任务干扰在心理旋转和注意力转移任务中的反应时间.
- 在MD组中,这些任务的性能减慢与姿势困难不成比例地增加.
- 在这两组中都没有发现对姿势稳定性的显著双重任务影响;MD患者表现出基线视觉空间工作记忆缺陷.
结论:
- 患有MD的个体表现出选择性的认知运动干扰,特别是在具有挑战性的视觉空间和执行任务中.
- 可以采用"姿势优先"的策略,优先考虑姿势控制而不是认知处理.
- 双任务范式提供了一种敏感的方法来评估MD的认知负担,为临床评估和管理提供信息.
相关概念视频
Pathophysiology of Heart Failure
Heart failure (HF) is a progressive syndrome involving ventricles that leads to inadequate cardiac output. It can be classified based on location and output or ejection fraction. Ejection fraction (EF) is an essential measurement in the diagnosis and surveillance of HF. Reduced EF corresponds to systolic heart failure (HFrEF). However, HF with preserved ejection fraction (HFpEF) is becoming increasingly prevalent. Also known as diastolic HF, this form of HF is related to aging. The...
Imbalances in Cardiac Output
The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send blood...
Fatigue
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
Mitral Regurgitation I: Introduction
Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
Heart Failure II: Pathophysiology
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
Heart Failure VII: Nursing Interventions
The first step in nursing management of a patient with heart failure involves thoroughly assessing the patient's medical history.Subjective Data: Obtain the patient's medical history of coronary artery disease, hypertension, myocardial infarction, and symptoms like dyspnea, orthopnea, and paroxysmal nocturnal dyspnea.Objective Data: Conduct a physical examination to identify findings such as jugular vein distention, pulmonary crackles, tachycardia, murmurs, peripheral edema, and vital signs,...

