• 감성과학
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• 제10권4호
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• pp.603-611
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• 2007

남용 약물에 대한 갈망은 중독적인 행동을 지속하는 데 있어 중요하다. 갈망은 강화적이거나 보상적인 약물을 복용하고자 하는 강한 욕구와 관련된 다차원적인 현상으로 여겨진다. 본 연구에서는 알코올 사용 장애자와 정상인이 알코올 관련 자극(소량의 술을 마시기, 알코올 관련 시각 자극)에 노출되었을 때 갈망에 대한 심리적인 반응의 차이를 밝히고자 하였다. 알코올 관련 시각 자극을 개발하기 위하여 Normative Appetitive Picture System(NAPS)과 1차 집단 심리 실험을 통하여 알코올 자극을 선정하고 자극의 적합성과 효과성을 검증하여 자극을 최종 개발하였다. 본 실험을 위해 알코올 사용 장애를 가진 9명의 남녀 대학생(남:8명)과 9명의 비의존 남녀 대학생(남:8명)을 선정하였다. 실험참여자는 5cc 정도의 알코올을 복용하고, 알코올 자극, 음료 자극, 통제 자극(흐릿하게 변형된 알코올 자극)과 고정점 자극(십자가 기호)에 무선적으로 노출되었으며, 각 종류의 자극이 제시되고 나면 마우스를 이용하여 심리적 갈망 수준을 보고하였다. 심리반응 결과, 강박음주갈망척도, 음주 전, 음주 후 알코올 갈망에서 두 집단 간 유의한 차이가 나타났다. 알코올 사용 장애 집단은 알코올 자극을 포함한 모든 자극에서 정상인 집단보다 높은 알코올 갈망 수준을 나타내었다. 결론적으로 알코올 사용 장애자는 알코올 자극에 의해 유발된 심리적 갈망이 정상인과 다른 것으로 나타났다.

• Korean Journal of Acupuncture
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• 제26권4호
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• pp.39-52
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• 2009

Objectives : Cue reactivity is a key factor that modulates motivational goal-directed behavior associated with compulsive drug-taking and relapse. We investigated whether acupuncture attenuated the skin conductance response and the heart rate response to smoking-related visual cues in smokers. Methods : Twenty-nine smokers were treated with real acupuncture (RA) or sham acupuncture (SA). The stress response inventory was measured on the 5th day after quitting smoking. The skin conductance response and the heart rate were measured to evaluate the autonomic changes to the smoking related visual cues on the same day. Results : The sympathetic alterations in skin conductance and the heart rate induced by the smoking-related visual cues were significantly lower in the RA group, as compared to the SA group. The stress response inventory, such as somatization and frustration, in the RA group was significantly lower than that of the SA group. Conclusions : Acupuncture ameliorated the stress symptoms as well as the sympathetic activation to smoking cues during withdrawal. These findings indicate that acupuncture might be a useful tool in smoking cessation by inhibiting smoking cues-induced autonomic responses.

• 대한물리의학회지
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• 제8권2호
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• pp.281-287
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• 2013

PURPOSE: The study was designed to investigate the effects of visual, auditory, and visuoauditory cues on simple Serial Task Performance in heaithy adults. METHODS: Sixty-three right-handed heaithy adults without history of neurological dysfunction were participated. A modified version of the Serial Reaction Time Task (SRTT) using five blocks of perceptual motor sequences was administered. The blocked paradigm consisted of the five blocks with randomly repeated 8 digit sequences with 5 repetition. Three types of sensory cue were employed: visual cue, auditory cue and visuoauditory cue. All subjects were assigned to press the matched botton as quickly and accurately as possible, when one of 8 stimulations was presented(one, two, three, four, five, six, seven, eight). The reaction time, accuracy, and P300 latency were measured during serial task performance. The mean reaction time(ms), accuracy(%), and P300 latency(ms) were compared between three types of cue using ANOVA. RESULTS: The reaction time to auditory cue was significantly longer than visual and visuoauditory cues(p<.001). And accuracy to auditory cue was significantly lower than visual and visuoauditory cues(p<.001). All P300 latency(at Fz, Cz, Pz) were significantly longer than to visual and visuoauditory cues(p<.05). CONCLUSION: It is suggested that type of cues influence in choice reaction. These data may helpful in designing not only effective motor learning training programs for healthy persons but also reeducation programs for patients with neurological dysfunction.

• 한국콘텐츠학회논문지
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• 제11권1호
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• pp.72-82
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• 2011

본 논문은 '환경관련 텔레비전 뉴스에서 영상과 자막이 수용자의 의제설정에 영향을 미치는지', 그리고 '텔레비전 수용자의 환경관여도에 따라 영상과 자막이 수용자의 환경 중요성 인식에 미치는 영향에 차이가 있는지' 의제설정효과와 정교화 가능성 모델(ELM)을 이론적 배경으로 살펴본 실험연구이다. 연구결과 환경이슈에 노출된 수용자는 노출빈도가 높을수록 환경을 더 중요하게 생각하며, 그 과정에서 텔레비전의 시각적 요소인 영상과 자막이 수용자들의 환경인식에 영향을 미친 것으로 나타났다. 그리고 영상과 자막이 환경이슈에 관심이 많은 수용자보다 관심이 적은 수용자들에게 통합적 주변단서로써, 환경 인식에 더 큰 영향을 미친 것으로 나타났다. 그러나 영상과 자막이 개별적인 주변단서로써 관여도가 낮은 수용자들에게 더 큰 영향을 미치는 현상은 통계적으로 유의미하게 지지되지 못했다. 그동안 텔레비전 뉴스의 수용자 효과 연구들은 대부분 언어텍스트를 중심으로 이루어짐으로써, 시각적 요소가 수용자에 미치는 영향에 관한 연구는 극히 제한적으로 이루어져왔다. 따라서 본 연구는 최근 미국에서 확산되고 있는 '영상의제설정'이라는 새로운 연구분야의 초기 실험연구로써, 미디어 효과 연구 영역에서 중요한 함의를 가질 수 있을 것이다.

• 유통과학연구
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• 제19권12호
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• pp.71-81
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• 2021

Purpose: This study to seek to answer two research questions in distribution science: what photo decoration cues in online grocery stores could be identified? Could photo decoration cues significantly effect on the affective perception and behavioral intention of consumers? Research design, data, and methodology: his study conducted a laboratory experiment with a 2×2×2 factorial design to validate the proposed research model and test our proposed hypotheses. Research design, data and methodology: Two stages experiments were adopted in this study, among 360 voluntaries who have had an experience of online grocery shopping, 331 valid data had been collected and analyzed using MANOVA and PLS-SEM algorism. Results: (1) both reflective surface and complementary goods layout lead to visual appeal and shopping enjoyment; (2) contrast color usage positively impacts on visual appeal while does not significantly affect shopping enjoyment; (3) consumers' affective responses positively impact attitudes toward product and store which in turn lead to purchase intention and store loyalty. Implications for research and practice are discussed. Conclusions: Using the media richness theory, visual rhetoric theory and visual design literature as the theoretical foundation, the study provides a solid foundation to comprehend the impact of photo design artifacts on consumers' affective responses when online consumers shopping online for fresh grocery.

• The Journal of Korean Physical Therapy
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• 제26권3호
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• pp.191-195
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• 2014

Purpose: The purpose of this study is to investigate whether types of sensory-stimuli cues in terms of visual, auditory, and visuoauditory cues can be affected to motor sequential learning in healthy adults, using serial reaction time task. Methods: Twenty four healthy subjects participated in this study, who were randomly allocated into three groups, in terms of visual-stimuli (VS) group, auditory-stimuli (AS) group, and visuoauditory-stimuli (VAS) group. In SRT task, eight Arabic numbers were adopted as presentational stimulus, which were composed of three different types of presentational modules, in terms of visual, auditory, and visuoauditory stimuli. On an experiment, all subjects performed total 3 sessions relevant to each stimulus module with a pause of 10 minutes for training and pre-/post-tests. At the pre- and post-tests, reaction time and accuracy were calculated. Results: In reaction time, significant differences were founded in terms of between-subjects, within-subjects, and interaction effect for group ${\times}$ repeated factor. In accuracy, no significant differences were observed in between-group and interaction effect for groups ${\times}$ repeated factor. However, a significant main effect of within-subjects was observed. In addition, a significant difference was showed in comparison of differences of changes between the pre- and post-test only in the reaction time among three groups. Conclusion: This study suggest that short-term sequential motor training on one day induced behavioral modification, such as speed and accuracy of motor response. In addition, we found that motor training using visual-stimuli cue showed better effect of motor skill acquisition, compared to auditory and visuoauditory-stimuli cues.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.798-802
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• 2003

The robustness and reliability of vision algorithms is the key issue in robotic research and industrial applications. In this paper, the robust real time visual tracking in complex scene is considered. A common approach to increase robustness of a tracking system is to use different models (CAD model etc.) known a priori. Also fusion of multiple features facilitates robust detection and tracking of objects in scenes of realistic complexity. Because voting is a very simple or no model is needed for fusion, voting-based fusion of cues is applied. The approach for this algorithm is tested in a 3D Cartesian robot which tracks a toy vehicle moving along 3D rail, and the Kalman filter is used to estimate the motion parameters, namely the system state vector of moving object with unknown dynamics. Experimental results show that fusion of cues and motion estimation in a tracking system has a robust performance.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2003년도 춘계학술대회 논문집
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• pp.1055-1058
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• 2003

The robustness and reliability of vision algorithms is the key issue in robotic research and industrial applications. In this paper robust real time visual tracking in complex scene is considered. A common approach to increase robustness of a tracking system is the use of different model (CAD model etc.) known a priori. Also fusion or multiple features facilitates robust detection and tracking of objects in scenes of realistic complexity. Voting-based fusion of cues is adapted. In voting. a very simple or no model is used for fusion. The approach for this algorithm is tested in a 3D Cartesian robot which tracks a toy vehicle moving along 3D rail, and the Kalman filter is used to estimate the motion parameters. namely the system state vector of moving object with unknown dynamics. Experimental results show that fusion of cues and motion estimation in a tracking system has a robust performance.

• Annals of Clinical Neurophysiology
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• 제2권2호
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• pp.114-118
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• 2000

Purpose : The pathophysiology of essential tremor(ET) remains unknown. PET studies of ET showed some conflicting data. One study reported significant glucose hypermetabolism of the medulla and thalami, but other studies reported abnormal bilateral overactivity of cerebellar and red nuclear connections. The previous experimental studies suggested that each PET finding reflects a part of neural circuit which is responsible for ET. So it can be imagined that olivocerebellar oscillation may be transmitted by the way of cerebellar projections to the thalamus in ET. It has been reported that the cerebellar dentate nucleus neurons are involved in the generation and/or guidance of movement based on visual cues. The purpose of this study is to clarify the role of dentato-thalamic tract in ET. Methods : Tremor amplitudes were recorded as each patient perform two kinds of task, one involving sensory-guided movement and the other involving memory-guided movement. Each patient was asked to move his/her index finger following a smoothly moving target. He/She also was asked to perform the same movements with his/her eyes closed ET. Results : The results showed that average amplitudes of tremor were significantly higer during visually guided task than during memory guided task in ET patients. Conclusions : Our results led us to conclude that dentato-thalamic tract might be related to the control of tremor in ET.

• 한국컴퓨터그래픽스학회논문지
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• 제20권4호
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• pp.1-7
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• 2014

볼륨렌더링은 주로 의학 및 과학 분야에서 사용되는 기법이었으나, 하드웨어의 발달과 더불어 다양한 응용프로그램에서의 적용이 가능해짐에 따라 볼륨렌더링에 대한 관심이 증가하고 있다. 볼륨렌더링의 시각화에 있어서 쉐이딩은 물체의 깊이 정보를 효율적으로 전달하여 시각적 인지에 큰 도움이 된다. 전역조명을 사용하면 시각적 인지를 향상시킬 수 있지만, 많은 GPU 메모리의 사용과 긴 연산시간으로 인해 프로그램과의 상호작용에 영향을 미친다. 본 논문에서는 렌더링 속도의 저하를 최소화하며 볼륨렌더링에 사실적인 쉐이딩을 적용하기 위하여 이미지 공간 폐색 쉐이딩 모델을 제안하고자 한다.