摘要
目的:日常生活中阿尔茨海默病(AD)患者的自主性取决于神经认知和运动能力的保持,随着时间的推移而下降。 到目前为止,很少有研究调查运动表征及其对AD感知和认知的贡献。 方法:在本研究中,我们比较AD患者与年龄匹配的健康参与者在涉及运动想象的感知和认知任务中的表现。 实验1通过想象的移动任务测试显式运动和视觉图像。 实验2通过视觉手部任务的心理旋转测试了以身体为中心的隐性运动图像。 最后,实验3通过可达性判断任务测试了以对象为中心的隐式运动图像。 结果:结果显示,与年龄匹配的对照组相比,AD患者对身体运动的有意识的想象或视觉刺激的运动要长得多,在运动状态中没有特别的困难(实验1)。 此外,在AD的响应时间患者强烈受到视觉刺激在心理旋转角度的影响手任务的旋转(实验2)。 同样,AD患者的反应时间在可达性判断任务中大大增加,但主要是位于人周边空间边界的刺激(实验3)。 结论:总体而言,数据表明AD在运动相关的感知和认知任务中影响处理时间但不是性能准确性的隐式但不明确的运动图像能力下降。
关键词: 运动图像,手的心理旋转,可达性判断,阿尔茨海默病,神经退行性疾病,痴呆。
Current Alzheimer Research
Title:Body-centred and Object-centred Motor Imagery in Alzheimer's Disease
Volume: 15 Issue: 3
关键词: 运动图像,手的心理旋转,可达性判断,阿尔茨海默病,神经退行性疾病,痴呆。
摘要: Objective: Autonomy in patients with Alzheimer's disease (AD) in daily life depends on the preservation of neurocognitive and motor abilities, which decline over time. So far, very few studies have investigated motor representations and their contribution to perception and cognition in AD.
Methods: In the present study, we compared the performance of AD patients to age-matched healthy participants in perceptual and cognitive tasks involving motor imagery. Experiment 1 tested explicit motor and visual imagery through an imagined movement task. Experiment 2 tested body-centred implicit motor imagery through a mental rotation of visual hand task. Finally, Experiment 3 tested object-centred implicit motor imagery through a reachability judgment task.
Results: The results showed that, compared to age-matched controls, conscious imagination of a body movement or the movement of a visual stimulus was much longer in AD patients, with no specific difficulty in the motor condition (Experiment 1). Furthermore, response time in AD patients was strongly affected by the angle of rotation of the visual stimuli in the mental rotation of hand task (Experiment 2). Likewise, response time in AD patients increased substantially in the reachability judgment task, but predominantly for stimuli located at the boundary of peripersonal space (Experiment 3).
Conclusion: As a whole, the data suggested a decline in AD of implicit, but not explicit, motor imagery capacities affecting processing time, but not performance accuracy, in motor-related perceptual and cognitive tasks.
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Cite this article as:
Body-centred and Object-centred Motor Imagery in Alzheimer's Disease, Current Alzheimer Research 2018; 15 (3) . https://dx.doi.org/10.2174/1567205014666171030105720
DOI https://dx.doi.org/10.2174/1567205014666171030105720 |
Print ISSN 1567-2050 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5828 |
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