Need for analysis of linguistic factors for elucidating the pathogenesis of Alzheimer's disease: A position paper

Alzheimer's disease involves impairment of all cognitive capabilities. Although the cognitive capabilities in humans are equipped in parallel in the form of modules, individual cognitive capabilities function via language, and human cognitive functions are vulnerable, by nature, to linguistic disturbances. Therefore, for elucidating the pathogenesis of Alzheimer's disease, it is important to analyze not only biological factors, but also linguistic factors. In this position paper, I discuss the relationship between cognitive capabilities and language, as well as the nature of language which creates cognitive capabilities, in order to acquire the prerequisite knowledge for analysis of linguistic factors in Alzheimer's disease.