中文摘要：

<正>As life expectancy increases around the globe,dementia has become an increasingly important public health issue that has created new challenges for communities’ social service networks’11.The early detection and prevention of dementia,particularly Alzheimer’s disease (AD),necessitate the

英文摘要：

As life expectancy increases around the globe, dementia has become an increasingly important public health issue that has created new challenges for communities＇ social service networksTM. The early detection and prevention of dementia, particularlyAIzheimer＇s disease （AD）, necessitate the development of effective public health education programs about the early symptoms and preclinical changes of dementia. To promote this effort the concept of mild cognitive impairment （MCI） - which some experts consider an early form of AD - has been created. Despite tremendous progress over the last 20 years in understanding the neuropsychological,