No abstract

In this study, autonomic nervous system responses including heart rate variability (HRV) and galvanic skin response (GSR) were observed to examine the masking effect of peppermint fragrance stimulus on car horn sound stimulus in a graphic driving simulator. When the pre-experiment and post-experiment measurements for GSR were compared in car horn sound stimulus experiment (1) (p<0.01), experiment (2) (p<0.05), and experiment (3) (p<0.01), driving experiment (2) (p<0.01) and experiment (3) (p<0.01), and peppermint fragrance stimulus experiment (3) (p<0.05), the measurements of all the experiments increased with significant differences after the experiment. This suggests that when the car horn sound stimulus was presented, the sympathetic nervous system was activated and aroused. With respect to the LF/HF ratio of the HRV, when a car horn sound stimulus was presented during driving, it showed different values depending on the presentation of peppermint fragrance. When the car horn sound stimulus was compared between before and after presenting peppermint fragrance while driving, it decreased with a significant difference (p<0.05). In conclusion, the arousal level by the car horn sound stimuluswhile driving decreased due to the peppermint fragrance stimulus. Therefore, the peppermint fragrance stimulus is considered to have a masking effect on the car horn sound stimulus.

Burden of dementia patients supportersThe number of dotards over 65 years old based on 2014 in Korea was 610,000 persons, that is, 1 person out of 10 persons. The problem is the family who looks after dementia patients. According to the statistics of health insurance medical expenses in 2013 of Health Insurance Review & Assessment Service, the medical expenses of dementia patients were 646,200,000,000 won, which was highest. The National Medical Dementia Center of Korea figures out those medical expenses born by family per 1 dementia patient are 18,920,000 won. The 62% of dementia patient's supporters have a mild depressive disorder, and 20% are receiving psychotherapy. The trouble of the family where a dementia patient exists often leads to a tragedy. As an example, in Dec, 2012, the incident that the grandmother in her seventies attempted to kill her husband who was sleeping at the room by hammering his head several times happened [1]. The grandmother who devotedly had cared for her husband for 5 years confessed, "It was too difficult to live with her dementia husband.

No abstract