Abstract
With the goal of promoting a fruitful and healthy longevity society, we have conducted a field survey on health and life style of elderlies in Naruko Community in Nagoya, Japan. In addition, we have designed a verbally-based cognitive tasks to check the cognitive function and collected speech records and cerebral blood flow activation on frontal lobe from elderly participants during the tasks. We used portable near-infrared spectroscopy (NIRS) OEG-SpO2 (Spectratech Inc, Japan) to measure cerebral blood flow activation. Conducting this observational study longitudinally, we challenge to make a database which can contribute to the prospective cohort study of cognitive decline. In this survey, we have collect elderly's answers for three categorized questionnaires: 1) daily living environment and health condition, 2) nutritional status (including MNA-SF), 3) activities of daily living, and then we have conducted simultaneous voice-NIRS measurement during five cognitive tasks: 4) time orientation, 5) three or four digits backward, 6) daily conversation (season, travel, gourmet, and daily life) 7) category recall (animals and vegetables) 8) letter-number sequencing (working memory index from WAIS-III).
