在帕金森氏症疾病中对几何视觉错觉的易感性
Radoslaw Wincza1, Calum Hartley1, Megan Readman1,2
1Department of Psychology, Lancaster University, Lancaster, United Kingdom.
Frontiers in psychology
|January 23, 2024
概括
在帕金森氏症 (PD) 的视觉处理中使用视觉幻觉进行了检查. 早期到中期PD患者与对照人群相比,对视觉幻觉的敏感性没有差异.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 心理学 心理学 心理学
背景情况:
- 帕金森病 (PD) 影响60岁以上的人群的1-3%,导致运动和视觉缺陷.
- 患PD的视觉障碍包括深度感知问题,与降落风险增加有关.
- 基底腺功能障碍和多巴胺缺乏与PD病理生理学有关.
研究的目的:
- 调查PD中的视觉处理障碍是否表现为对视觉错觉 (VIs) 的非典型反应.
- 了解多巴胺缺乏和基底腺在PD中的VI易感性中的作用.
- 探索VI敏感性和PD中的深度感知缺陷之间的关系.
主要方法:
- 一个基于计算机的任务评估了对Ebbinghaus,Ponzo和Müller-Lyer幻觉的反应.
- 28名早期到中期PD患者和28名神经类型对照参与了研究.
- 这些组根据年龄,认知能力和情绪进行了匹配.
主要成果:
- 在PD患者和对照人群之间,没有发现视觉错觉易感性的显著差异.
- 早期到中期的PD相关的基底腺异常和多巴胺缺乏似乎不会影响与VI相关的自上而下的处理或深度感知.
- 在PD中,深度感知缺陷可能涉及不同的认知机制,而不是潜在的VI易感性.
结论:
- 在早期到中期的帕金森氏症疾病中,视觉错觉易感性并没有可靠的差异.
- 在早期到中期的PD中,多巴胺缺乏和基底腺功能障碍不太可能导致视觉错觉易感性.
- 需要进一步的研究来探索PD中的明确深度感知缺陷及其认知基础.
更多相关视频
07:26Characterizing 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
11:12Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects
Published on: September 18, 2012
17.4K
相关概念视频
01:12Visual Agnosia
203
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...
203
01:22Photoreceptors 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
01:37Neural Regulation
39.4K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.4K