• Journal of the Korea Society of Computer and Information
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• v.29 no.11
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• pp.267-275
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• 2024

The purpose of this study is to present basic data to provide a comfortable treatment environment by analyzing the relation between the degree of recognition of dental noise and responses. For 205 dental patients in Seoul and Gyeonggi Province, the differences in the cognitive level, physiological response, and psychological response of dental noise according to general characteristics and dental experience were analyzed by t-test, one way ANOVA, and correlation analysis. As a result of the study, the cognitive degree, physiological response, and psychological response of dental noise showed significant differences according to age and occupation, and significant results were found in the cognitive degree, physiological response, and psychological response of dental noise according to the contents of treatment and the period of visit. In this study, a positive correlation was confirmed between the cognitive degree of dental noise and the psychological and physiological response. For continuous research and essential improvement to reduce noise in dentistry, it is necessary to pay attention to the noise-generating environment and make efforts to prevent hearing loss.

• The Korean Journal of Physiology
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• v.6 no.2
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• pp.1-8
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• 1972

A study was planned to see if the mammillary bodies have any influence upon orienting response Thirty-nine male rats were divided into two groups. One group of animals received electrolytic lesion of the mammillary bodies through stereotaxically implanted electrodes (mammillary body group), and the other group received the same treatment short of electrolytic lesion(operated control group). All animals were tested for orienting response 3 weeks after surgery. Orienting response was regarded as elicited when an animal in alertness ceased ongoing activity upon 1,000 Hz tone presentation and/or turned head toward the source of stimulus. Weak (momentary and inconspicuous) and strong (marked and more persistent) responses were discriminated. Occurrence and duration of orienting response were measured, and the rate of habituation was estimated in 20 trials. Shift of attention from sound to light stimulus (10 trials) as well as orienting response of thirsty animals to sound stimulus while drinking (5 trials) and while at rest (5 trials) were also tested. 1. Simple orienting respons to sound stimulus tended to occur more often and its duration tended to be shorter in the mammillary body group than in the operated control group. 2. With repetition of trials, the occurrence of orienting response in each trial decreased progressively in both groups (habituation). However, the rate of habituation was significantly less prominent in the mammillary body group than in the operated control group. 3. Under attention·shift situation, orienting response tended to occur less often and its duration tended to be shorter in the mammillary body group than in the operated control group. 4. Orienting response to sound stimulus while drinking to quench thirst tended to occur more often and its duration tended to be shorter in the mammillary body group than in the operated control group. In quiet state, however, there existed no group difference with regard to the occurrence and duration of the orienting response. Although no obvious inference can be drawn from the above results, they may suggest the mammillary bodies being involved in the orienting response as a control mechanism inhibitory to the occurrence and facilitatory to the habituation of the response.