• 제목/요약/키워드: Visual stimuli

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L2 Proficiency Effect on the Acoustic Cue-Weighting Pattern by Korean L2 Learners of English: Production and Perception of English Stops

  • Kong, Eun Jong;Yoon, In Hee
    • 말소리와 음성과학
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    • 제5권4호
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    • pp.81-90
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    • 2013
  • This study explored how Korean L2 learners of English utilize multiple acoustic cues (VOT and F0) in perceiving and producing the English alveolar stop with a voicing contrast. Thirty-four 18-year-old high-school students participated in the study. Their English proficiency level was classified as either 'high' (HEP) or 'low' (LEP) according to high-school English level standardization. Thirty different synthesized syllables were presented in audio stimuli by combining a 6-step VOTs and a 5-step F0s. The listeners judged how close the audio stimulus was to /t/ or /d/ in L2 using a visual analogue scale. The L2 /d/ and /t/ productions collected from the 22 learners (12 HEP, 10 LEP) were acoustically analyzed by measuring VOT and F0 at the vowel onset. Results showed that LEP listeners attended to the F0 in the stimuli more sensitively than HEP listeners, suggesting that HEP listeners could inhibit less important acoustic dimensions better than LEP listeners in their L2 perception. The L2 production patterns also exhibited a group-difference between HEP and LEP in that HEP speakers utilized their VOT dimension (primary cue in L2) more effectively than LEP speakers. Taken together, the study showed that the relative cue-weighting strategies in L2 perception and production are closely related to the learner's L2 proficiency level in that more proficient learners had a better control of inhibiting and enhancing the relevant acoustic parameters.

색상과 톤, 스커트 폭·길이에 따른 원피스드레스 착용자의 인상평가 (The Impression Evaluation of the Dress's Wearer in Relation to Hue, Tone, Skirt Width and Length)

  • 최수경;강경자
    • 한국의류산업학회지
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    • 제6권4호
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    • pp.447-454
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    • 2004
  • The purpose of this study is to identify the effect of four clothing cues(hue, tone, skirt width, and skirt length of dress) on female impressions. The experimental materials developed for this study are a set of stimuli and response scales. The Stimuli are 40 color pictures manipulated with four clothing cues by drawing. The 7-point scale designed for visual evaluation of female impression formation includes 29 bipolar adjectives. The subjects were 240 undergraduate female students in Jinju city. The results of this study are as follow: As analyzing the impression of the female figure by the hue, tone, skirt width, and length, five factors including ability activity, elegance, attractiveness, concentration of attention, and tenderness were identified. Among these factors, ability activity and elegance were proved to be more important. Each impression of hue and tone with skirt width length have significant effects on concentration of attention, and tenderness. We can express various impressions by diversifying hue and tone. Each impression of skirt width length with hue and tone have significant effects on ability activity and elegance.

무채색과 유채색의 면적비 변와에 따른 스트라이프 패턴의 넥타이 이미지 연구 (A Study on Necktie Image of Striped Pattern according to Area-Ratio Variation of Chromatic and Achromatic Colors)

  • 성남숙;최수경
    • 복식
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    • 제59권4호
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    • pp.67-81
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    • 2009
  • This study aims to characterize the effect of different combinations of chromatic-achromatic colors and 1:2:3 area-ratio variation of stripe necktie, and gender on the image of male wearer. The experimental materials developed for this study are a set of stimuli and response scales. The stimuli consist of 84 color pictures manipulated with every combination of 12 different colors and 7 different area-ratio. The 7-point scale designed for visual evaluation of image formation included 26 bipolar adjectives. The subjects were 2016 undergraduate students in Gyeongnam, Seoul, Busan, and Daegu areas. The results of this study were as follows. The analyses of images of male wearer in terms of combinations of chromatic-achromatic colors and I :2:3 area-ratio variation of oblique stripe necktie reveal that the concerned factors are of five characteristic dimensions of youth-activity, ability, attractiveness, appeal, and warmness. In addition, it has been found that individual images of male wearer are affected by observer's gender as well as combinations of chromatic-achromatic colors and 1:2:3 area-ratio variation of stripe neckties and that those images vary with every combination of each factor. The study results are highly expected to be used as useful sources in developing necktie designs.

무채색의 톤과 스커트 폭.길이 변화에 따른 원피스드레스 착용자의 인상평가 (The Impression Evaluation d the Dress's Wearer in Relation to Neutral Tone, Skirt Width and Length Variation)

  • 최수경;강경자
    • 한국생활과학회지
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    • 제13권2호
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    • pp.317-328
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    • 2004
  • The purpose of this study was to identify the effect of three clothing cues(neutral tone, skirt width, and skirt length of dress) on the impressions of females. The experimental materials developed for this study were a set of stimuli and response scales. The stimuli were 20 color pictures manipulated with three clothing cues by drawing. The 7-point scale designed for visual evaluation of impression formation about females included 29 bipolar adjectives. The subjects were 240 undergraduate female students in Chinju city. The results of this study were as follows: By analyzing the impression of female figures by neutral tone, skirt width, and length, five factors including ability.activity, elegance, attractiveness, concentration of attention, and tenderness were identified. Among these factors, ability.activity and elegance were proved to be more important. Each impression of neutral tone with skirt width. length have significant effects on tenderness. Each impression of skirt width.length with neutral tone have significant effects on ability.activity.

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원피스드레스의 색상과 톤, 스커트 길이.폭의 변화가 인상 형성에 미치는 영향 (The Effect of Hue and Tone, Skirt Width. Length Variation of Dress on Impression Formation)

  • 최수경;강경자
    • 복식문화연구
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    • 제11권4호
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    • pp.459-473
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    • 2003
  • The purpose of this study is to identify the effect of four clothing cues(hue, tone, skirt width, and skirt length of dress)on female impressions. The experimental materials developed for this study are a set of stimuli and response scales. The Stimuli are 40 color pictures manipulated with four clothing cues by drawing. The 7-point scale designed for visual evaluation of female impression formation includes 29 bipolar adjectives. The subjects were 240 undergraduate female students in Chinju city. The results of this study are as follow: As analyzing the impression of female figure by the hue, tone, skirt width, and length, five factors including ability. activity, elegance, attractiveness, concentration of attention, and tenderness were identified. Among these factors, ability·activity and elegance were proved to be more important. Some interaction effects of clothing cues were found. The combination of skirt width and tone had significant effects on ability. activity. Hue and tone of dress had significant effects on concentration of attention and tenderness. Skirt width and hue, and skirt length and hue had significant effects on the impression of attractiveness. Also skirt length and hue significant effects on concentration of attention.

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넥타이의 색과 무늬가 남성복 이미지에 미치는 영향 (The Effect of Necktie Color and Patterns on the Image Formation of the Men's Suit)

  • 강경자;임지영
    • 한국의류학회지
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    • 제20권5호
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    • pp.753-768
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    • 1996
  • The purpose of this study is to find out the effect of suit color, necktie color and necktie patterns on the men's suit image formation. The experimental materials developed for this study were a set of stimuli and response scales. The stimuli were 28 color pictures manipulated with suit color, necktie color and necktie patterns by computer drawing. The experimental design consists of 3 factorial design; 1) suit color (navy blue, beige), 2) necktie color (analogous, complimentary color), 3) necktie patterns (plain, dot, stripe, check, paisley, floral, abstract) The 7-point semantic differential response scale designed for visual evaluation of men's suit image on suit color, necktie color and necktie patterns were composed of 34 bipolar adjectives. The subject are 150 female undergraduate students in Chin-ju city. They responded twice to 14 stimuli at random order The result of this study are as follows; 1. By analyzing the responses of the subjects, 4 factors emerged in the dimensional structure of the men's suit image formed by suit color, necktie color and necktie patterns. The 4 factors are charm, potency, uniqueness and tenderness. Among these, charming and potential factors proved to be more important. 2. necktie color, suit color and neckite patterns had the significant effect on the formation of men's suit image. In the charm image, only necktie patterns were proved to be the most dominant variable. The most dominant variable in the potencial and unique image was necktie color and second to it suit color was important. But suit color was most significant in the image of tenderness. 3. In the effects of interactions between each variables, the combination of suit color and necktie color wins more significant than that of suit color and necktie patterns and that of necktie color and necktie patterns, but in the image of tenderness, only the combination of suit color and necktie color was more significant. In the interaction of suit color, necktie color and necktie patterns, the potential factor didn't have the significant effect.

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정상상태시각유발전위를 이용한 Mirror Neuron System 기반 BCI 시스템 개발 (Development of Mirror Neuron System-based BCI System using Steady-State Visually Evoked Potentials)

  • 이상경;김준엽;박승민;고광은;심귀보
    • 한국지능시스템학회논문지
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    • 제22권1호
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    • pp.62-68
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    • 2012
  • 정상상태시각유발전위 (Steady-State Visually Evoked Potentials)는 특정 주파수를 가진 시각자극에 대한 자연반응 신호이며 3.5Hz~75Hz의 주파수 범위를 갖는 시각 자극에 의해 동일한 주파수로 후두엽 영역이 전기적 활성화되는 특성이 있다. 본 논문에서 이러한 SSVEP 특성을 기반으로 EEG 분석을 수행하는 실험 패러다임을 구축하여 행동유발특성을 가지는 특정 객체에 대한 영상입력 시각자극에서의 주파수 패턴에 대응하는 EEG의 주파수 특징을 검출하고 이를 기반으로 객체와 관련된 행동유발특성을 Mirror Neuron System을 통해 측정한다. 이 때 측정된 EEG 기반 행동유발특성 데이터에 대한 선형판별분석을 수행하여 객체 패턴분류를 실시간으로 수행한다. 이러한 SSVEP 관측 실험을 기반으로 사용자의 내재적 의도를 파악하기 위한 Brain-Computer Interface(BCI) 시스템을 제안했다. Speller 등으로 대표되는 기존의 SSVEP 응용시스템은 격자영상패턴에 대응하는 뇌파특성 분석에 따른 패턴분류의 수행이 가능하나 본 논문의 SSVEP 기반 BCI는 다양한 형태의 사물을 입력객체로 활용하여 분류가 가능함으로 인해 범용성이 높아졌다.

노화에 의해 저하된 시공간 주의배분능력이 정서지각 편향성에 미치는 영향 (The Influences of Deteriorated Visuo-spatial Attention Allocation Ability Caused by Aging on Emotional Perception Bias)

  • 김상엽;정재범;남기춘
    • 감성과학
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    • 제23권4호
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    • pp.3-20
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    • 2020
  • 본 연구의 목적은 노화에 따라 나타나는 시공간 주의배분능력과 정서지각 편향성의 변화에 대해 탐구하는 것이다. 본 연구에서는 시공간 주의배분능력을 측정하기 위해 useful field of view (UFOV) 과제와 정서지각 편향성을 측정하기 위해 정서지각과제(emotional perception task)를 사용하였다. 본 연구에는 노인 집단의 23명과 청년 집단의 25명의 총 48명의 실험참가자가 참여하였다. 실험 결과, UFOV 과제에서는 노인 집단이 청년 집단에 비해 느린 반응속도와 낮은 정답률을 보여 노인 집단이 청년 집단보다 저하된 시공간 주의배분능력을 가지고 있다는 것을 나타냈다. 또한, 정서지각과제에서는 노인 집단이 청년 집단에 비해 긍정적 정서지각 편향성과 부정적 정서지각 편향성 모두 크게 나타났다. 상관분석 결과에서는 정서지각과제의 정답률에 대한 부정적 정서지각 편향성이 UFOV 과제의 시야각 30° 조건의 반응속도와 유의미한 정적 상관관계가 나타났다(r=.289). 또한, 정서지각과제의 정답률에 대한 긍정적 정서지각 편향성은 UFOV 과제의 모든 시야각 조건들의 정답률과 유의미한 정적 상관관계가 나타났으며(r=.305, r=.322, r=.299), 반응속도와 유의미한 부적 상관관계가 나타났다(r=-.345, r=-.295, r=-.308). 이러한 결과는 노화가 저하된 시공간 주의배분능력 그리고 긍정적 정서지각 편향성과 부정적 정서지각 편향성의 증가와 관련있다는 것을 의미하고, 노화에 따라 나타나는 긍정적 및 부정적 정서지각 편향성은 저하된 시공간 주의배분능력과 관련성이 있는 것으로 여겨진다.

웹 접근성 향상을 위한 시각장애인과 일반인의 감성 비교 (Emotion of People with Visual Disability for Enhancing Web Accessibility)

  • 박주현;류한영
    • 감성과학
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    • 제11권4호
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    • pp.589-598
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    • 2008
  • 본 연구는 시각장애인의 감성적 특성을 밝혀 향후 웹 접근성 지침에 반영하기 위해 진행된 기초연구로, 통일한 청각적 자극에 대한 시각장애인과 일반인의 감성 반응을 비교하고 그 차이점을 알아보고자 진행되었다. 이러한 목적을 위하여 본 연구에서는 음악(Representation Sound)과 음향효과(Abstraction Sound)를 이용한 15개의 청각 자극과 긍정 및 부정 감성어휘를 이용한 11개의 감성평가 척도를 선정하여 웹 설문 시스템을 제작하였으며, 이를 활용하여 31명의 시각장애인과 53명의 일반인을 대상으로 준비된 청각 자극에 대한 감성 반응을 측정하였다. 예외적인 경우가 있기는 하지만 설문의 결과는 대부분의 경우에서 두 집단 간의 감성반응패턴이 일치하는 것으로 나타나, 장애인의 감성욕구가 일반인과 크게 다르지 않음을 보여주고 있다. 이러한 결과는 디자인에서 사용자의 감성을 중요시 하는 것과 마찬가지로 웹 접근성에 대한 연구에서 장애인의 감성적 욕구가 중요시 되어야 함을 보여주고 있는 것이다.

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아코디언 플리츠 스커트의 주름너비와 스커트길이 변화에 따른 시각적 효과 (A Study on the Visual Effects According to Changes in Width of Pleats and Skirt Length of Accordion Pleats Skirt)

  • 이정순
    • 한국의상디자인학회지
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    • 제12권1호
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    • pp.77-88
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    • 2010
  • The purpose of this study is to evaluate the differences of visual effects by variations in the width of pleats and the length of the accordion pleats skirt. The stimuli are 21 samples: 7 variations of the width of pleats and 3 variations of the length of skirt. The data has been obtained from 43 fashion design majors. The data has been analyzed by Factor Analysis, Anova, Scheffe's Test and the MCA method. The results of the study are as follows: The visual effects by the number of pleats and the length of skirt are composed of 2 factors: verticality and thickness of lower body, shape of abdomen. In these factors, verticality and thickness of lower body factor is estimated by the most important factor. The accordion pleats skirt makes the lower body look longer when the width of the pleats is wider, and helps the calf and leg look thinner. Also, the waist looks more slender and thin. As the skirt gets longer, one looks taller, and legs look longer and thinner. The shape of abdomen is no difference according to the width of pleats. As the skirt gets longer, the waist looks more slender and thinner. The interaction of visual effect according to the changes in width of pleats and skirt length of accordion pleats skirt is not shown, and the skirt length has more effect than the width of pleats does in verticality and width of lower body factor. The width of pleats has more effect than the skirt length does in shape of abdomen factor.

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