학술논문

Food Preference Evaluation of an Old Person with Dementia Using an Eye Tracking System: Relationship between Gaze and Amount of Food Intake / 認知症高齢者におけるアイトラッキングシステムを用いた食形態の嗜好評価の検討 ―視線と食事摂取量との関連―
Document Type
Journal Article
Source
日本摂食嚥下リハビリテーション学会雑誌 / The Japanese Journal of Dysphagia Rehabilitation. 2021, 25(1):52
Subject
dementia
eye tracking system
gaze
preference
アイトラッキングシステム
嗜好
視線
認知症
Language
Japanese
ISSN
1343-8441
2434-2254
Abstract
Subject and Methods: The subject was a 75-year-old-man in Long-Term Care Level 2 with a score of nine points on the Hasegawa Dementia Scale-Revised (HDS-R) used by the Japanese insurance system. His primary illness was cerebellar hemorrhage complicated by dementia. The food forms were unprocessed and blended test food, and the test foods were grilled fish weighing about 78 g (iEat, EN Otsuka Pharmaceutical Co., Ltd.). We attached an eye tracker (Tobii pro/glasses 2, Tobii Technology Japan Ltd.), and had the patient freely look for 10 s at each dish that had been served. One set was 10 s, and we carried out three sets. After the observation period, the patient ate test foods freely within 10 min. The gazing point was measured for 10 s from the time the food was served to the time the subject started eating. Gaze data stored in the recording unit were analyzed using analytical software (Tobii Studio, version 4.9; Tobii Technology Japan, Ltd.). The amount of food intake was measured after the meal. Higher food intake was interpreted as “high” preference level, while lower food intake was interpreted as “low” preference level.