• Title/Summary/Keyword: Visual Psychology

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Effect of Task-irrelevant Feature Information on Visual Short-term Recognition of Task-relevant Feature (기억자극의 과제 무관련 세부특징 정보가 과제 관련 세부특징에 대한 시각단기재인에 미치는 영향)

  • Hyun, Joo-Seok
    • Korean Journal of Cognitive Science
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    • v.23 no.2
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    • pp.225-248
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    • 2012
  • The summed-similarity model of visual short-term recognition proposes that the estimated amount of summed similarity between remembered items and a recognition probe determines recognition judgement decision (Kahan & Sekuler, 2002). This study examined the effect of a task-irrelevant location change on the recognition decision against two remembered Gabor gratings differing in their spatial frequencies. On each trial in Experiment, participants reported if two gratings displayed across the visual fields are the same or not as the probe grating displayed after about a second of memory delay. The probe grating would be the same as or different from the memory items (lure) by 1 or 4 JND units. The location of the probe would also vary randomly across the left and right visual field with respect to the location of the corresponding memory item. The participants were instructed to perform their recognition task exclusively to the spatial frequencies of the memory items and the probe while ignoring the potential location change of the probe. The results showed that false-recognition rates of the lure probe increased as the summed similarity between the memory items and the probe increased. The rates also further increased in the condition where the probe location was different from the location of the corresponding memory item compared to the condition where the probe location was the same. The increased false-recognition rates indicate that information stored into visual short-term memory is represented as a form of well-bound visual features rather than independent features.

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Psychophysiological Responses Evoked by Fear and Disgust Emotion Using Audiovisual Film Clips in Children (공포와 혐오 정서에 대한 아동의 심리생리반응)

  • Jang, Eun-Hye;Woo, Tae-Je;Lee, Young-Chang;Sohn, Jin-Hun
    • Science of Emotion and Sensibility
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    • v.10 no.2
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    • pp.273-280
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    • 2007
  • The study is to examine the psychophysiological responses evoked by negative emotions(fear and disgust) in children. 47 children(11-13 years old, 23 boys) participated in the study. While the children were experiencing fear or disgust emotion induced by audio-visual film clips, ECG, EDA, PPG and SKT are measured. Emotion assessment scale was used to confirm that emotions elicited by the film clips were significantly noticeable, which was measured self-report. The results turned out to be 100% and 89.4% of appropriate for fear and disgust emotions, respectively. Emotional intensity the children had experienced was rated as 4.05, 4.07 on 1-5 scale based on effectiveness of measurement of fear and disgust emotion. ANS reponses by fear and disgust were significantly between the resting state and emotional state induced. The result obtained from the fear emotion showed significant increases in SCL, NSCR, HR, RSA, RESP and HF. There was a significant difference in SCL and NSCR between the two emotions.

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Effects of high pass filter settings on P300 waveform (고역통과필터 값이 P300의 파형에 미치는 영향)

  • Eom, Jin-Sup;Eum, Young-Ji;Sohn, Jin-Hun;Park, Kwang-Bai
    • Science of Emotion and Sensibility
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    • v.13 no.1
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    • pp.179-186
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    • 2010
  • The present study is a partial extension of the Duncan-Johnson and Donchin (1979) and Soskins, Rosenfeld, and Niendam (2001) studies that found some effects of high pass filter (HPF) setting on P300 waveform. EEGs were recorded while the subjects performed a visual three-stimulus oddball task, and the Fz and Pz EEG signals were passed through 0.01 Hz, 0.3 Hz, and 1.0 Hz HPFs. P300 amplitudes at Fz and Pz were reduced at 1.0 Hz HPF compared to 0.01 Hz and 0.3 Hz HPFs. The negative peaks post P300 at Fz and Pz were not observed at 0.01 Hz HPF, but observed at 0.3 Hz and 1.0 Hz HPFs. The combination of 0.3 Hz HPF and peak-to-peak P300 measures was more useful than that of 0.01 Hz, 0.3 Hz, or 1.0 Hz HPF and baseline-to-peak P300 measures to discriminate between non-target and standard stimuli. The peak-to-peak P300 measures were more useful than the baseline-topeak P300 measures at 1.0 Hz HPF setting.

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Relationship between the Level of Anxiety and ANS Responses in Children Induced by Fearful Stimulus (공포자극에 의해 유발된 자율신경계반응과 불안수준과의 관계 : 초등학생을 대상으로)

  • Jang, Eun-Hye;Lee, Young-Chang;Im, Soo-Bin;Kim, Sook-Hee;Sohn, Jin-Hun
    • Science of Emotion and Sensibility
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    • v.10 no.3
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    • pp.463-470
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    • 2007
  • There have been many studies on patients who suffer from anxiety disorders. However, there is been not enough attention on the difference in the level of between the two populations with and without anxiety disorders. This study was performed to investigate the difference in the ANS responses induced by fear in children. Experimental procedures were as follow: All subjects were in upper grade levels in elementary school. ANX(anxiety) scales of PIC(Personality Inventory for Children) were used to measure fear anxiety. Audio-visual clips were used as stimulus to provoke fear emotion. Baseline of physiological signals, ECG, PPG, EDA, and SKT, were measured for 30 seconds before the fear stimulus. Physiological signals were then recorded for 2 minutes while fear is evoked. Psychological and physiological responses were analyzed. All the children reacted to the fear stimulus with high intensity of fear. Physiological responses showed that SKT, SCR, NSCR, HR, RSA, RESP, HF were increased, while R-R was significantly decreased, respectively, during the period of fear induction. Analysis of the level of anxiety and the physiological responses produced by the experience of fear revealed a statistically significant positive correlation in SKT, HR, and RSA. In other words, the higher the level of anxiety, the higher the levels of SKT, HR, and RSA when children experienced fear in conclusion, it is confirmed through this research that physiological responses to fear is associated with the level of anxiety each individual.

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Measurement of Emotional Transition Using Physiological Signals of Audiences (관객의 생체신호 분석을 통한 감성 변화)

  • Kim, Wan-Suk;Ham, Jun-Seok;Sohn, Choong-Yeon;Yun, Jae-Sun;Lim, Chan;Ko, Il-Ju
    • The Journal of the Korea Contents Association
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    • v.10 no.8
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    • pp.168-176
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    • 2010
  • Audience observing visual media with care experience lots of emotional transition according to characteristics of media. Enjoy, sadness, surprising, etc, a variety of emotional state of audiences is often arranged by James Russell's 'A circumplex model of affect' utilized on psychology. Especially, in various emotions, 'Uncanny' mentioned by Sigmund Freud is represented a sharp medium existing in a crack of clearly emotional conception. Uncanny phenomenon is an emotional state of changing from unpleasant to pleasant on an audience observing visual media is been aware of immoral media generally, therefore, because this is a positive state on a social taboo, we need to analyze with a scientific analysis clearly. Therefore, this study will organize James Russell's 'A circumplex model of affect' and uncanny phenomenon, will be progressed to establish a hypothesis about a state of uncanny on audiences observing visual media and analyze results of the physiological signals experiment based on ECG(Electronic Cardiogram), GSR(Galvanic Skin Response) signals with distribution, distance, and moving time in a circumplex model of affect.

The Effect of Psychomoto Program Based on Convergent Intervention on Attentional Concentration of Children with ADHD (융합적 중재를 기반으로 한 심리운동프로그램이 ADHD아동의 주의집중력에 미치는 영향)

  • Ryu, Jin Ho;kang, Yoo-seok;Chae, Chung Eun
    • Journal of Digital Convergence
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    • v.16 no.6
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    • pp.463-470
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    • 2018
  • The main purpose of this study was to determine the efficacy of a group psychomotor training for the visual and auditory attention in children with ADHD. We examined some of the important factors of visual and auditory attention deficits, the Omission Error and False Alarm Error using Kiphard's 6-step program for children with ADHD. The result suggests that a significant decrease in factors involved in visual attention deficits was influenced by the degree of group interaction and the time of examination. However, factors involved in auditory attention deficits were not significantly affected. Our research on the effects of psychomotor program based on the convergent intervention approach suggests that future studies investigate different paradigms of intervention methods for children with ADHD.

The Effect of PPL on the User's Visual Attention Using Eye-tracking (아이트래킹을 활용한 PPL이 수용자의 시각적 주의에 미치는 영향)

  • Wang, Wan-Nan;Park, Min-Hee;Hwang, Mi-Kyung;Kwon, Mahn-Woo
    • The Journal of the Korea Contents Association
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    • v.21 no.2
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    • pp.445-452
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    • 2021
  • This paper is an experimental study using eye-tracking on the visual attention of TV entertainment programs with PPL products being shoveled by the acceptor. As a result of analysis, first, there was no difference in the exposure time of the PPL product, which is deemed to have little effect on the subject's attention. Second, there was no difference in the PPL product's prominence, and we could see that the focus was on subtitles or the faces of the cast. Third, the concentration of attention on PPL products was higher when there were more famous cast members than there were when there were low-profile cast members, and the appearance of famous cast members was judged to be very effective in order to focus more attention on PPL products. In conclusion, when exposing PPL products in entertainment programs, it is believed that the more popular the cast members appear on entertainment shows, such as famous broadcasters, celebrities, and stars, the more effective the PPL products are, rather than the exposure time and prominence of PPL products, the more effective the companies will be in advertising the popular and likable celebrities.

Effects of an Agro-Healing Activity Program on the Physiological Condition of Adults with Chronic Metabolic Diseases

  • Jang, Hye Sook;Yoo, Eunha;Jeong, Sun-Jin;Kim, Jae Soon;Ryu, Doo Young
    • Journal of People, Plants, and Environment
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    • v.22 no.4
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    • pp.355-364
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    • 2019
  • This study was conducted to find out the effects of agro-healing activities and strolling on the physiological conditions of patients with chronic metabolic diseases. A total of 11 subjects participated in agro-healing activities, and their average age was 49.6±11.3. Changes in their salivary cortisol were compared and analyzed before and after participating in the agro-healing activity program, and it was found that the stress hormone decreased after participating in the program. Differences in brain wave between before and after participating in agro-healing activities and strolling were measured, and the ratio of alpha to high beta (RAHB) of subjects increased in most of the measured points after participating in agro-healing activities. In addition, the increase in the value in the temporal lobe (T3) that controls mortor skills and occipital lobe (O2) that controls visual functions indicates that the activities were effective in improving relaxation and stability. The relative low beta (RLB) power spectrum of subjects also statistically significantly decreased in the right occipital lobe (O2) that controls visual functions, the relative mid beta (RMB) and relative high beta (RHB) power spectrum decreased in the left temporal lobe (T3) and the right occipital lobe (O2). These results indicate that the activities were effective in improving relaxation under no stress and tension. The systolic and diastolic blood pressure of subjects after participating in agro-healing activities decreased from the prehypertension level to the normal level. These results indicate that horticultural activities and visual elements in healing farms, such as agro-healing activities and strolling, have positive impacts on patients with chronic metabolic diseases accompanied with diabetes or high blood pressure by increasing the brain activity and psycho-physiological conditions of participants.

Study for Color Planning Cases of Geriatric Hospitals for Healing Environment (치유환경을 위한 노인전문병원의 색채계획 사례 분석;NCS 색감(color nuance) 중심으로)

  • Kim, Joon-Ji;Lee, Hyun-Soo
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2006.11a
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    • pp.173-177
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    • 2006
  • Color can stir up the feeling and the thinking of the human inside, and heals human's illness. The color of architecture is a systematic physical space of shape and color. In other words, color is a kind of visual language organizing a structure and interact with human. The color of hospital can be specially effective to heal the elderly. This study intends to help geriatric hospital in future to elevate remedial value and indicate basic data for adapted the elderly environment. NCS is a kind of color system based on the human psychology and nature. This study researched the color of geriatric hospital with NCS and annualized the color nuance of each spaces. As a result the distribution of color nuance show the present of the geriatric hospital's color planning.

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Case study of VR experience studying for smart education support (스마트 교육 지원을 위한 VR 체험학습 사례 연구)

  • Kim, Moon Seok
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.10 no.2
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    • pp.131-141
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    • 2014
  • UX design e-learning systems in order to establish the reasonable structured modules that are based on interdisciplinary research. E-learning by focusing on technology-related education, information technology and psychology, business administration, etc. has been studied in the field. However, an important part of smart education, one of the students in the field of self-directed research is lacking UX design. UX Design the User Interface and Visual Identity is central to the success of the content of the important research areas in modern smart society. This case study is for smart education digital textbooks considered the characteristics of the study. Presented by the Ministry of Education on the basis of the standard of digital textbook content of the e-learning features, including multi-disciplinary analysis of UX design requires a structured model is proposed. Research data on the smart education and virtual education in UX design being used as the basis for studies forward.