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Activation of the Prefrontal Area Observed by fNIRS
Akemi Kariya,Yoshino Tatsumi,Satoshi Imaizumi 한국노인복지학회 2011 International Journal of Welfare for the Aged Vol.25 No.-
Hospitalization of elderly patients has been increasing in Japan. Management of delirium including hallucination and auditory hallucination after surgery and before and after treatment is important in many of these patients. However, caregivers currently can only use frequent talking to a patient, confinement, monitoring and medication to care for patients with these symptoms. The objective of this study was to collect basic data in order to develop a preventive intervention program before elderly patients develop delirium. Cerebral blood flow in the prefrontal area and temporal lobe was measured using a near-infrared functional neuroimaging system. The balance between the sympathetic and parasympathetic nerves was evaluated as a physiological index by analysis of pulse wave frequency using a continuous blood pressure measurement device. Activation of cerebral blood flow was observed in the prefrontal area while shaking hands. The parasympathetic nerve was dominant in the process of shaking hands, suggesting a relaxing effect.