• 감성과학
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• 제4권1호
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• pp.43-51
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• 2001

When consumer evaluates a product, every aspec of the product affects the evaluation. Human uses at least five sensory organs for the evaluation. Multi-sensory or multi-modal design tries to add auditory and olfactory factors to the traditional visual-centered design. For the multi-modal design, it is essential to understand relationships between combined sensory stimuli and human sensibility. Information between simple sensory stimulus and human sensibility is pre-requisite to combine multi-modal stimuli. This study investigated human sensibility against 8 colors and 30 sounds, presented independently. The combined stimuli of color and sound were made based on the sensibility generated by each stimulus. Human sensibility generated by the combined stimuli of color and sound were made based on the sensibility generated by each stimulus. Human sensibility generated by the combined stimuli was investigated with 20 female subjects. For combined stimuli that generated the same kind of sensibility respectively, generated sensibility was same but strength was diminished. For combined stimuli that generated the different sensibilities respectively, subjects showed neutral sensibility or no special sensibilities. Sensibilities to the same stimuli also showed difference depending on personal background of the subjects.

• 생물정신의학
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• 제16권4호
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• pp.238-245
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• 2009

Objectives : Mild Alzheimer's disease(AD) is uncertain to be related to visuospatial working memory subsystem dysfunction. We used the self ordered pointing test(SOPT) to find the characteristics of visuospatial working memory in mild AD. Methods : We compared the visuospatial working memory abilities of 20 patients with mild AD and 20 normal elderly controls(NC) using SOPT, of which stimuli consisted of two stimuli types(A : abstract, C : concrete) and two stimuli numbers(8 and 12). Therefore, working memory was tested using C8, C12, A8, and A12 stimuli conditions in SOPT. Mixed-model ANOVA was conducted with the AD and NC groups as between-subjects factor, with stimuli types and stimuli numbers as the within-subjects factors and with SOPT error rates as the dependent variable. Results : The AD group showed higher error rates in SOPT than the NC group. The NC group showed low error rates in concrete stimuli than in abstract stimuli and in small stimuli numbers than in large stimuli numbers. And the AD group showed no differences between stimuli types or stimuli numbers. Conclusion : AD patients showed a poor performance in visuospatial working memory using concrete stimuli. The result suggests that there is a non-transformation from visual input to phonological working memory in AD. Patients with AD showed a poor performance although in small stimuli number condition of SOPT. It suggests that in AD, visuospatial working memory is not working well although in low central executive loads.

• 한국멀티미디어학회논문지
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• 제20권12호
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• pp.1856-1864
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• 2017

The ultimate goal of multimedia in bio-signal research is to approach multimedia contents through bio-signal. Hence it is important to interpret user's emotions by analyzing his or her bio-signals. In this paper, we construct ERP task of oddball component to analyze EEG signal between normal stimuli and fear stimuli and measure EEG during ERP task. The results from extracted ERP component show that there is a difference in N200 in visual stimuli, P300 in auditory stimuli, and N100 and P300. Moreover, there are larger changes in audiovisual stimuli, indicating that users recognize greater fear of crime when visual and auditory stimuli are simultaneously presented.

• 대한의용생체공학회:의공학회지
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• 제39권2호
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• pp.94-102
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• 2018

It is known that gamma-band activity (GBA) and phase synchrony (GBPS) are induced by emotional visual stimuli. However, the characteristics of GBA and GBPS according to different emotional states have not been identified. The purpose of this study is to investigate the changes in gamma-band neuronal synchronization induced by positive and negative emotional visual stimuli using electroencephalograms (EEGs). Thirteen healthy male subjects have participated in the experiment. The induced spectral power in gamma-band was the highest for negative stimuli, and the lowest for neutral stimuli in 300-2,000 ms after the stimulus onset. The inter-regional phase synchronization in gamma-band was increased in 500-2,000 ms, mainly between the bilateral frontal regions and the parieto-occipital regions. Larger number of significant connections were found by negative stimuli compared to positive ones. Judging from temporal and spatial characteristics of the gamma-band activity and phase synchrony increases, the results may imply that affective visual stimuli cause stronger memory encoding than non-emotional stimuli, and this effect is more significant for negative emotional stimuli than positive ones.

• 수면정신생리
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• 제25권1호
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• pp.21-26
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• 2018

목 적 : 본 연구의 목적은 한국인에게 적합한 사회적 정서를 유발하는 자극(한국형 사회적 정서 유발 시각 자극, Korean Social Affective Visual Stimuli, K-SAVS)을 개발하는 것이다. 방 법 : K-SAVS는 극동 아시아인이 등장하는 사회적 상황의 사진들로 구성되었다. 각 사진은 부정적 정서 자극, 긍정적 정서 자극, 혹은 중립 자극으로 구성하였다. 24명의 피험자에게 긍정적 자극과 부정적 자극을 보여주고 정서가 및 각성수준에 대한 자가 평가 마네킹 척도를 작성하게 한 후, 다른 24명의 피험자들에게 부정적 자극과 중립 자극을 보여주고 같은 척도를 작성하게 하였다. 결 과 : 1차 실험에서 95개의 자극 사진 중 긍정적 정서자극 사진 1개 세트, 부정적 정서 자극 사진 2개 세트를 선정하였다. 각 세트는 18개의 사진으로 이루어졌다. 긍정적 정서 자극은 부정적 정사 자극 사진에 비해 호감도는 높았으며 (p < 0.001) 흥분도는 낮았다(p < 0.001). 2차 실험에서는 1차 선정된 사진들과 중립 자극 사진을 포함하여 79개의 사진 중 중립 자극 사진 1개 세트를 선정하였다. 중립 자극은 호감도는 높았으며(p < 0.001) 흥분도는 낮았다(p < 0.001). 결 론 : K-SAVS는 한국인에게 특정한 사회적 정서를 유발하는데 유용하게 사용할 수 있는 시각 자극이라 할 수 있다.

• 감성과학
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• 제6권3호
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• pp.29-43
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• 2003

본 연구에서는 남성과 여성에 있어서 정서적 자극에 대한 기억이 다른지를 알아보고자 하였다. 또한 제시되는 자극의 기억을 측정할 것이라는 기억지시문을 주고, 또한 자극제시 후 곧바로 자유회상의 방법으로 기억을 측정함으로써 정서적 자극으로 유발된 정서의 표현을 조절할 필요성을 가능한 최소화시켰다. 그리고 남성과 여성의 정서적 자극과 중성적 자극에 대한 기억을 측정함으로써 선행사건초점 정서조절 과정에 의해 남성들의 정서적 자극에 대한 기억이 손상됨을 밝히고자 하였다. 전체적으로 여성들이 남성들보다 제시된 자극에 대하여 더 많이 기억하고 있었으며, 특히 중성적 자극보다 정서적 자극에 대해 남성들보다 더 많은 내용을 회상하였다. 회상내용을 중심적 요소에 대한 기억과 지엽적 요소에 대한 기억으로 나누어 남녀 차이를 분석해본 결과, 여성들은 정서적 자극의 중심적 요소에 대하여 중성적 자극보다 더 많이 기억하였으나 남성들은 정서적 자극과 중성적 자극에 대한 중심적 요소에 대한 기억차이가 나타나지 않았다.

• 한국의류학회지
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• 제15권2호
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• pp.211-227
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• 1991

The purpose of this study was to investigate the effects of design modification, decoration and color scheme of traditional Korean women's clothing on impression formation by 2 age groups of women. The instruments developed for the study were 2 sets of stimuli and a response scale. Stimuli I (design stimuli) consisted of 6 line drawings of female figures in Korean clothing and modified Korean style clothing, whereas stimuli II (color stimuli) consisted of 6 colored drawings of female figures in different color schemes. The 7-point semantic differential scale of 14 bipolar adjectives were used for the response scales. 144 female college students and 144 middle·aged women subjects were randomly assigned to one of 6 drawings from each set of stimuli. The data were analyzed by factor analysis, ANOVA and t-test. 1) There factors emerged to account for dimensions of design and color scheme, respectively. The first factor was interpreted as Evaluation/prestige both in design (stimuli I) and color scheme (stimuli II), the second factor was Modernity for stimuli I, and the third factor for stimuli I was Practicality. On the other hand, the Luxuriousness/Individuality was factor 2 and Modernity was factor 3 for stimuli ll. 2) Modification had the largest effect on impressions regarding design and decorated designs had a partial effect on the impression of Modernity and Practicality. The female figures in modified Korean style clothing were perceived as more prestigious, modern and practical than those in traditional Korean clothing. 3) Color schemes had little effect on impressions, while perceiver's age had a larger effect. Middle·aged women formed more positive impressions toward Korean clothing of various color schemes than female college students.

• 한국의류학회지
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• 제33권10호
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• pp.1673-1682
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• 2009

The purpose of the study was to investigate differences in: 1) importance of buying motives including external stimuli and sales promotional stimuli among groups according to levels of diversity orientation; 2) importance of buying motives including external stimuli and sales promotional stimuli among their subordinate factors. Questionnaires were distributed 340 women who aged between 20 and 30. A sample of 317 women responded to the questionnaire. Using SPSS/PC version 12.0, factor analysis reliability analysis, Analysis of Variance (ANOVA), and Repeated measure ANOVA were used for the data analysis. As results, there were significant differences in importance of buying motives including external stimuli and sales promotional stimuli among groups according to levels of diversity orientation. Also, there were significant differences in importance of external stimuli and sales promotional stimuli among their subordinate factors.

• 대한물리치료과학회지
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• 제7권2호
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• pp.629-639
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• 2000

The purpose of this study is to find out what effects aerobic exercises and acupuncture point stimuli have on the blood. For this purpose, we reviewed 10 papers on aerobic exercises and 10 papers on the stimuli to acupuncture points and compared the changes of HDL-C, seroenzyme GOT and GPT. The results showed that HDL-C increased significantly after aerobic exercises; more so than before as stated in the papers on aerobic exercises. On the other hand, HDL-C decreased significantly after acupuncture point stimuli; more so than before as stated in the papers on the stimuli to acupuncture points. Seroenzyme GOT increased more significantly after aerobic exercises than shown before in the papers on aerobic exercises. However, there was a more significant decrease after the stimulus than shown before in the papers on acupuncture points stimuli. Seroenzyme GPT increased more significantly after aerobic exercises than shown before in the papers on aerobic exercises. There were no significant differences before and after on, the acupuncture points stimuli, according to those papers. Therefore, as HDL-C increased significantly when doing aerobic exercises, aerobic exercises prove to be a more effective treatment method than stimuli to the acupuncture points for patients with hyperlipidemia. However, from the facts that seroenzyme GOT and GPT increased significantly after aerobic exercises, we find that aerobic exercises may be more of a burden on the tissues of the liver, skeletal muscles, stomach, etc. than the stimuli to acupuncture points.

• 말소리와 음성과학
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• 제9권4호
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• pp.123-128
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• 2017

This study aims to compare the performance of syllable identification task according to auditory and visual stimuli presentation methods and syllable position. Twenty-two typically developing children (age 4-6) participated in the study. Three-syllable words were used to identify the first syllable and the final syllable in each word with auditory and visual stimuli. For the auditory stimuli presentation, the researcher presented the test word only with oral speech. For the visual stimuli presentation, the test words were presented as a picture, and asked each child to choose appropriate pictures for the task. The results showed that when tasks were presented visually, the performances of phonological awareness were significantly higher than in presenting with auditory stimuli. Also, the performances of the first syllable identification were significantly higher than those of the last syllable identification. When phonological awareness task are presented by auditory stimuli, it is necessary to go through all the steps of the speech production process. Therefore, the phonological awareness performance by auditory stimuli may be low due to the weakness of the other stages in the speech production process. When phonological awareness tasks are presented using visual picture stimuli, it can be performed directly at the phonological representation stage without going through the peripheral auditory processing, phonological recognition, and motor programming. This study suggests that phonological awareness skills can be different depending on the methods of stimulus presentation and syllable position of the tasks. The comparison of performances between visual and auditory stimulus tasks will help identify where children may show weakness and vulnerability in speech production process.