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	Difference of Audiovisual Integration between Alzheimer's Disease Patients and Age-matched Healthy Controls: An fMRI Study
	Yang, Lu ; Yang, Jiajia ; Nakamura, Naoya ; Wu, Jinglong ; Ohno, Seiichiro ; Kurata, Tomoko ; Kanazawa, Koji Abe Susumu
	2013
关键词	Alzheimer&apos Functional Magnetic Resonance Imaging Audiovisual Integration MILD COGNITIVE IMPAIRMENT AUDITORY-VISUAL INTERACTIONS HIPPOCAMPAL ATROPHY FUNCTIONAL MRI BIOMARKER SIGNATURE HUMANS CORTEX s Disease
英文摘要	Alzheimer's Disease (AD) is the most common and destructive neurodegenerative disorder threatening old people. As a non-invasive way to assess brain function, the fMRI technique can be used to detect how the brain activity pattern of AD patients differ from that of age-matched elder controls (EC). We compared the brain activity pattern of AD and EC under three conditions: unimodal auditory stimuli, unimodal visual stimuli and bimodal audiovisual stimuli. It was found that patients with AD exhibit a more extensive but relatively weaker response than EC, and in every type of stimuli, the activated brain areas are dissimilar with EC. The limbic lobe of AD patients is universally silent while the hippocampal areas in EC are active. Moreover, compared with EC, AD patients show fewer activated regions for audiovisual integration, indicating impaired multisensory information processing and cognitive integration. The findings imply that fMRI can help with the diagnosis of AD even in the early stage.; Engineering, Biomedical; Engineering, Electrical & Electronic; EI; CPCI-S(ISTP); 0
语种	英语
DOI标识	10.1109/ICCME.2013.6548204
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/405799]
专题	生命科学学院
推荐引用方式 GB/T 7714	Yang, Lu,Yang, Jiajia,Nakamura, Naoya,et al. Difference of Audiovisual Integration between Alzheimer's Disease Patients and Age-matched Healthy Controls: An fMRI Study. 2013-01-01.

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