• 제목/요약/키워드: stimulus length

검색결과 57건 처리시간 0.023초

검사어의 모음 환경과 길이 및 연령에 따른 비음치 (Effects of vowel context, stimulus length, and age on nasalance scores)

  • 신일산;하승희
    • 말소리와 음성과학
    • /
    • 제8권3호
    • /
    • pp.111-116
    • /
    • 2016
  • The Nasometer is most commonly used to assess the presence and degree of resonance problems in clinical settings and it provides nasalance scores to identify the acoustic correlates of nasality. Nasalance scores are influenced by factors related to speakers and speech stimuli. This study aims to examine the effect of vowel context and length of stimuli and age on nasalance scores. The participants were 20 adults and 45 children ranging in age from 3 to 5 years. The stimuli consisted of 12 sentences containing no nasal consonants. The stimuli in the three vowel contexts (low, high, and mixed) consisted of 4, 8, 16, and 31-syllable long sentences. Speakers were asked to repeat each stimulus after examiner. The results indicated significant effects of vowel contexts and stimulus length on nasalance scores. The nasalance scores for the high vowel contexts were significantly higher than those for the mixed and low vowel contexts. The nasalance scores for the mixed vowel contexts were significantly higher than those for the low vowel contexts. Speakers had higher nasalance scores for 4-syllable long sentences and 31-syllable long sentences than for 16-syllable long sentences. The effect of age on nasalance scores was not significant. The results of the study suggest that the vowel context and length of speech stimuli should be carefully considered when interpreting the nasalance scores.

광반응 변위전류의 체인길이에 따른 영향 (The Effect According to Chain Length of Light Response Displacement Current)

  • 김성진;강용철;정헌상;구할본;최영일;백순기;이경섭
    • 한국전기전자재료학회:학술대회논문집
    • /
    • 한국전기전자재료학회 2000년도 하계학술대회 논문집
    • /
    • pp.495-498
    • /
    • 2000
  • In this paper, generation form of displacement current was compared and measured with air-water interfacing induce monolayers which 8A5H with azobenzene and arac.acid mixed. Light response of two monolayers which chain length are different was compared and measured though they are the same isomer. The experimental results are as following; In the displacement current form of mixed monolayers and 8A5H, mixed monolayers which chain length is longer than that of 8A5H caused the displacement current about 40[fA] mole. This is the reason chain length of hydrophobicity in mixed monolayers is longer than that of 8A5H In the case of light stimulus mixed monolayers reacted less than 8A5H about 9[fA]. This is the reason molecule dynamic behaviour in cia and trans was net activated due to its very long chain length.

  • PDF

적출 유두근에서 근육길이에 따른 계단현상 및 칼슘 수축력의 변화 (Length-dependent Staircase Phenomenon and Calcium Inotropisn in Isolated Rabbit Papillary Muscle)

  • 김기환;엄융의;남기용
    • The Korean Journal of Physiology
    • /
    • 제14권2호
    • /
    • pp.7-16
    • /
    • 1980
  • The effects of various inotropic interventions on the shape of the steady state length tension relation and the length-dependent activation process in cardiac muscle were studied. The influence of inotropic interventions upon the action potential was also observed. The range of varying muscle length was from the optimal length$(l_{max})$, where the active tension production is maximal, to 0.85 $l_{max}$. Changes in stimulus frequency or in external bathing Ca concentration constituted the inotropic interventions in this experiment. The papillary muscles were isolated from the rabbit right ventricles and perfused with $HCO-_3\;-buffered$ normal Tyrode solution which was aerated with $3%\;CO_2-97%\;O_2$ mixed gas and kept at $35^{\circ}C$. Resting Passive tension at $l_{max}$ was approximately 30% of the total tension and appeared from the muscle length of 0.90 $l_{max}$. The effect of stimulus frequency on the steady state level of developed tension was: As the stimulus frequency was increased from 0.1 to 0.5 Hz, there was little change in developed tension. As the frequency was increased further, to a value of about 3 Hz, tension increased steeply. Further increase of the frequency to 5 Hz had little additional effect on the developed tension. The length-tension curves for isometric peak tension became more steeper with the degree of potentiation by inotropic interventions. The relative steepness of the normalized length-tension curves where tension production was expressed as a percentage of maximal tension developed at $l_{max}$, varied inversely with the level of inotropic state and these curves were not superimposable one another. Thus at the stimulus frequency of 2 Hz or at the external Ca concentration of 8 mM, the relative decline in the developed tension for a given change in muscle length was considerably less than the decline observed at the frequency of 0.5 Hz or at the concentration of 2 mM Ca. Action potential duration was prolonged significantly as the frequency increased from 0.2 to 2 Hz, and this change in action potential duration was not observable on the changes in muscle length. There was a tendency of the hyperpolarization of membrane potential when the muscle length was shortened from $l_{max}$ to 0.95 $l_{max}$. These results support the hypothesis that there is a length-dependence of the activation process.

  • PDF

헤어스타일.길이와 모자유형이 인상형성에 미치는 영향 (The Effect of Hair-style.Hair-length and Types of Hat design on Impression Formation)

  • 정해선;강경자
    • 한국의류학회지
    • /
    • 제28권3_4호
    • /
    • pp.460-471
    • /
    • 2004
  • The purpose of this study is to investigate the effect of hair-style (straight and wave), hair-length(short, medium, and long), and type of hat design (no-hat, beret, cloche, bowler, and capeline) on impression formation. The experimental materials developed for this study were a set of stimulus and response scales. The 7-point semantic differential response scales were designed. Thirty stimuli color pictures of various combination of hair length, hair style, and type of hat design were manipulated by computer drawing. The subjects were 360 undergraduates living in Seoul, Kyunggi and Kyungnam. The experimental design was composed of 3 factorial designs. The result of the study can be summarized as follows; Impression factor of the stimulus consisted of the 5 different dimensions (attractiveness, gracefulness, activity, concentration of attention, cuteness). Hair style greatly affected gracefulness. On the other hand, hair length made remarkable effects on attractiveness, concentration of attention, and cuteness. In addition, it has been found that the type of hat design significantly influenced on all the factors except attractiveness as independent variables. In regarding the effect of interaction between each variable, the combination of hair style and hair length had significant effects on gracefulness. In the impression formation of cuteness, the combination of hair length and type of hat design were more significant.

모자유형과 헤어스타일 및 길이변화에 따른 모자착용자의 인상평가 (The Impression Evaluation of the Hat's Wearer According to Types of Hat design, Hair-style and Hair-length)

  • 정수진;정해선;강경자
    • 한국의상디자인학회지
    • /
    • 제7권3호
    • /
    • pp.129-144
    • /
    • 2005
  • The purpose of this research was to find out the effect of hair-style(straight and wave), hair-length(short, medium and iong), and type of hat design(no-hat, beret, cloche, bowler and capeline) on the impressions of hat's wearer . The experimental materials developed for this study were a set of stimulus and response scales(7-point scale semantic). Thirty stimuli color pictures of various combination of hair length, hair style, and type of hat design were manipulated by computer drawing. The subjects were 360 undergraduate students in Seoul, Kyunggi and Kyungnam. The result of this study can be summarized as follows; Impression factor of the stimulus consisted of the 5 different dimensions (attractiveness, gracefulness, brightness, visibilty, cuteness). Each impression of type of hat design, along with hair-style, hair-length had significant effects on gracefulness, visibilty and cuteness. Each impression of hair-style, hair-length, along with type of hat design had significant effects on gracefulness, brightness, visibilty and cuteness. Thus type of hat design, hair-style and hair-length have a significant influence on the impression evaluation of hat's wearer.

  • PDF

인공수정체안의 조절반응에 관한 연구 (The Study on Accommodation for eyes with pseudo-crystalline lenses)

  • 이석주;성아영
    • 한국안광학회지
    • /
    • 제9권2호
    • /
    • pp.203-209
    • /
    • 2004
  • 무수정체안에서의 생리적 조절력은 0.50D 정도 알려져 있고 위수정체안에서도 조절작용이 이루어진다고 알려져 있다. 그러나 정확한 조절작용은 규명되지 못한 상태이다. 이에 본 연구에서는 위수정체안에 대하여 10D의 조절자극을 가하였을 때 안축장과 각막굴절력의 변화들이 조절작용에 미치는 영향을 고찰하였다. 백내장 수술을 하고 인공수정체를 삽입하여 2개월 이상 경과한 환자 중에서 합병증이 없는 환자 48명(96안)을 대상으로 안축장의 길이와 각막굴절력을 조사하였다. 조절자극에 대한 안축장의 길이의 변화는 $0.05{\pm}0.06mm$ 증가하였고 각막굴절력의 변화는 $0.04{\pm}0.24D$의 증가를 나타냈다. 조절자극에 따른 안축장의 길이의 변화는 근시의 경우 $0.19{\pm}0.18D$, 정시의 경우 $0.21{\pm}0.16D$, 원시의 경우 $0.10{\pm}0.19D$ 증가되었다. 조절자극에 따른 각막굴절력의 변화는 근시의 경우 $0.03{\pm}0.13D$, 정시의 경우 $0.21{\pm}130$ 증가를, 원시에서는 $-0.02{\pm}0.34D$의 감소를 나타내었다.

  • PDF

실물사진과 컴퓨터그림에 의한 남성 캐주얼웨어 이미지 지각 연구 (A Study on the Image Perception of Men's Casual Wear Using Photograph and Computer Simulation Picture)

  • 강승희;이명희
    • 한국의류학회지
    • /
    • 제33권1호
    • /
    • pp.1-10
    • /
    • 2009
  • The purpose of this study was to investigate the effects of the types and the colors of men's casual wear, hairstyles, and the methods of stimulus manufacture on men's image perception. The subjects were 360 women from the metropolitan area of Seoul. The clothing types used for the study were a sweater and a jumper(casual jacket) with jean pants. The clothing colors were beige, indigo, and red. Two hairstyles, the short and the medium length hairs, were compared. Two types of stimuli, the photograph and the computer simulation picture, were used. The results of the factor analysis disclosed five dimensions on men's image: neatness, individuality, ability, activity, and sociability. In general, the photograph stimuli were evaluated more positively in activity, individuality, and sociability than the picture stimuli. The sweaters were perceived higher in ability, activity, and sociability than the jumpers. The Indigo color was evaluated as neat. The medium length hairstyles were perceived as neat and the short hairstyles were perceived as sociable. The jumpers were evaluated lower in individuality in the picture stimuli than in the photograph stimuli. The beige and indigo colors were evaluated to be neater in the picture stimuli than in the photograph. When using the picture stimuli, the men's image wearing the sweaters with the medium length hairstyles were evaluated lower in individuality. When using the photograph stimuli, the men's image wearing the sweater with the short hairstyles were evaluated higher in activity. Men's image wearing the indigo jumper and the beige sweater with medium length hairs were evaluated as high in neatness.

혼합 유기단분자의 동적 거동에 관한 연구 (A Study on the Dynamics Behavior of Mixed Organic Monolayers)

  • 김성진;이경섭
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2000년도 추계학술대회 논문집 학회본부 C
    • /
    • pp.470-472
    • /
    • 2000
  • In this paper generation from of displacement current was compared and measured with light stimulus induce monolayers which 8A5H with azobenzene and arac.acid mixed. Light response of two monolayers which dynamics behavior are different was compared and measured though they are the same isomer The experimental results are as following; In the case of light stimulus mixed monolayers reacted less than 845H about 5[fA]. This is the mason molecule dynamic behaviour and trans was not activated due to its very chain length.

  • PDF

음향 순치에 의한 명태의 행동 특성 (Behavioural Characteristics of Walleye Pollack Theragra chalcogramma by Acoustic Sound Conditioning)

  • 박용석
    • 수산해양기술연구
    • /
    • 제32권4호
    • /
    • pp.331-339
    • /
    • 1996
  • 본 연구에서는 해양목장에서 음향을 사용한 어군행동제어에 관한 기초적인 자료를 얻기 위하여, 감지하기 쉬운 주파수의 순음과 먹이의 조합으로 어류를 학습시켜서, 음향 순치의 가능성을 검토했다. 미차체장이 385~459mm인 수컷 8마리와 암컷 5마리를 실험 수조에 수용하여, 수조내에 설치한 수중 스피커로부터 감지하기 쉬운 200Hz의 순음을 방성하면서 원격급이 장치로부터 급이하여 조건학습을 실시했다. 학습과정을 수록한 비디오 영상으로부터 물고기의 행동을 해석하여 색이장에 출현하는 빈도를 방성 전.방성 중.방성 후로 나눠서 해석했다. 학습 개시 일로부터 8일째에 학습 음에 첫 반응을 보였으며, 4일간 학습을 중지한 후에 학습 음을 방성 하여도 반응을 보였다. 방성 후에 음원부근에 위집 하는 율이 방성 전보다 높아져서, 1분간의 평균 출현빈도는 51%였다.

  • PDF

고빈도전침자극(高頻度電鍼刺戟)의 자극시간(刺戟時間)에 따른 중추신경계(中樞神經系) 신경세포(神經細胞)의 활성변화(活性變化)에 미치는 영향(影響) (Effect of stimulation-duration of high frequency electroacupuncture on the neuronal activities in the spinal cord and brainstem using Fos immunohistochemical technique)

  • 손성세;남상수;이재동;최도영;안병철;박동석;이윤호;최용태
    • Journal of Acupuncture Research
    • /
    • 제15권2호
    • /
    • pp.17-28
    • /
    • 1998
  • The present study was designed to investigate the effect of different stimulation-duration of high frequency electroacupuncturet(EA) treatment on the neuronal activities in the spinal cord and brainstem using Fos immunohistochemical technique. Three different stimulus-duration was used in this experiment : 30minutes, 1 hour and 2 hours. The summerized results were summerized as follow : 1. The number of Fos expression was significantly increased in the spinal cord dorsal horn depending upon the increase of stimulus-duration (P<0.05). Otherwise, there was no significant difference between 30 minutes EA treated group and anesthetic control. 2. High frequency EA biphasic stimulation significantly enhanced the Fos expression in the DR, middle and rostral portion of PAG LD, and caudal PAG LV after 1 hour and 2 hours treatment. The number of Fos immunoreactive neuron in the brainstem was increased accorcting to the length of stimulus-duration. Those results indicate that at least 1 hour EA treatment was necessary to increase the neuronal activities in the spinal cord and brainstem. Those basic data from this study can be applied to establish the effective treatment of EA for pain control in the clinical field.

  • PDF