Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

6.0K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.0K
Dementia01:30

Dementia

110
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
110
Prosopagnosia01:24

Prosopagnosia

155
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...
155
Alzheimer's Disease: Overview01:26

Alzheimer's Disease: Overview

462
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
462
Visual Agnosia01:12

Visual Agnosia

190
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...
190
Glaucoma: Overview01:25

Glaucoma: Overview

541
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
541

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Risk of Noninfectious Uveitis Associated With Disease-Modifying Therapies for Multiple Sclerosis.

American journal of ophthalmology·2026
Same author

Economic Evaluation of Thymectomy for the Treatment of Nonthymomatous Myasthenia Gravis.

JAMA network open·2026
Same author

Harmonization of self-reported and performance-based measures of vision using inverse probability weighting: an example using vision and depression in NHATS, CLSA, and LASI.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same author

Correction: The Natural History Study and Biomarker Collection of the Clinical Research Consortium for the Study of Cerebellar Ataxia (CRC-SCA).

Cerebellum (London, England)·2025
Same author

Ophthalmic conditions in patients with multiple sclerosis.

Multiple sclerosis and related disorders·2025
Same author

The Association between Glaucoma and Dementia in a National Cohort of All of Us Participants.

Ophthalmology·2025

相关实验视频

Updated: Jun 23, 2025

Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking
07:26

Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking

Published on: September 26, 2019

7.8K

在患有勒维体痴呆症的视觉功能障碍.

Ryan A Devenyi1, Ali G Hamedani2,3,4

  • 1Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Current neurology and neuroscience reports
|June 22, 2024
PubMed
概括

视觉功能障碍在患有勒维体 (DLB) 痴呆症中很常见,影响知觉,物体识别和空间意识. 这些问题导致DLB患者的跌倒和驾驶障碍.

关键词:
痴呆症与利维体的痴呆症.轻度认知障碍 轻度认知障碍视网膜 (retina) 是一个视网膜.视觉皮层的视觉皮层.视力受损 视力受损 视力受损视觉感知 视觉感知

更多相关视频

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
12:23

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients

Published on: April 14, 2014

14.1K
Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
07:12

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

322

相关实验视频

Last Updated: Jun 23, 2025

Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking
07:26

Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking

Published on: September 26, 2019

7.8K
Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
12:23

Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients

Published on: April 14, 2014

14.1K
Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss
07:12

Development of a Gaze-Contingent Display Framework Designed for Perceptual and Oculomotor Research with Simulated Central Vision Loss

Published on: April 11, 2025

322

科学领域:

  • 神经科学是一个神经科学.
  • 眼科医生 眼科 眼科
  • 老年病的医生 老年病的医生

背景情况:

  • 勒维体痴呆症 (DLB) 是一种神经退行性疾病,其特征是认知能力下降,帕金森症和视觉幻觉.
  • 视觉功能障碍是DLB的核心特征,影响视觉处理的各个方面.
  • 了解这些缺陷对于诊断和管理至关重要.

研究的目的:

  • 审查当前关于Lewy体痴呆症视觉功能障碍的文献.
  • 探索这些视觉缺陷的潜在机制和临床影响.
  • 突出最近在理解前性和明显的DLB视觉障碍方面的进展.

主要方法:

  • 对DLB视觉功能障碍研究的文献综述.
  • 对新的视觉缺陷和成像发现的最新研究分析.
  • 综合关于临床相关性和结果的信息.

主要成果:

  • 最近的研究发现了新的视觉功能障碍,如视觉纹理无知症和3D对象旋转困难.
  • 面和面的低流与视觉结构受损相关.
  • 视网膜成像显示出异常,例如在DLB.DLB中偏膜稀释.
  • 患者在色彩感知,物体识别和空间意识方面表现出缺陷,这与视觉皮层功能障碍有关.
  • 视觉功能障碍与视觉幻觉,驾驶障碍和跌倒有关.

结论:

  • 视觉功能障碍是莱维体痴呆症的一个重要和多方面的方面.
  • 这些缺陷具有深刻的临床影响,影响患者的安全和生活质量.
  • 持续的研究,包括视网膜成像和前阶段的研究,对于改善DLB患者护理至关重要.