Past Issues

TPR(Total Physical Response) is a new representative learning method for children`s education. Today`s approach to TPR has focused on signals from a user which becomes input data in a human-computer interaction, but the accuracy of sensing from body signals(e. g. motion and voice) isn`t so perfect that it seems difficult to apply on an education system. To overcome these limits, we suggest a mediating interface device which can detect the user`s motion using correct numerical values such as acceleration and angular speed. In addition, we suggest new design requirements for the mediating device through analyzing children`s behavior as human factors by ethnography research and protocol analysis. As a result, we found that; children are unskilled in physical control when they use objects; tend to lean on an object unconsciously with touch. Also their behaviors are restricted, when they use objects. Therefore a mediating device should satisfy new design requirements which are make up for unskilled handling, support familiar and natural physical activity.

keyword : Total Physical Response, Protocol analysis, Mediating interface, Design requirements, 체감형 학습, 프로토콜 분석, 매개 인터페이스, 디자인 요구사항

Initial stage of emotion has a great influence on building up product image and impression. Because of its influencing effects, measuring initial stage of emotion has potential to be a key factor for designers and marketers to achieve a distinct product concept. While many researchers have studied this topic with the emotion measurement method in product use stage, there are very few cases specialized in the initial stage of emotion. Even though present emotion measurement methods have difficulties to derive accurate user`s initial stage of emotion, most case of initial emotion study applies these defective methods. The purpose of this study is to develop initial stage of emotion measurement method and apply this method to real product context. In the design of the initial stage of emotion measurement method, noticeable characteristics of initial stage of emotion were explored and initial emotion measurement framework was presented. Based on this framework, Initial Emotion Measurement System(IEMS) was suggested. This method collects user`s eye movement, behavior and verbal data accurately and objectively.

keyword : initial stage of emotion, mobile eye-tracking measurement, shadow tracking, initial emotion measurement system, 초기 감성, 시선 추적, 행동 관찰, 초기 감성 측정 시스템

This study is to analyze change of connectivity between brain positions caused by relaxation through EEG coherence. EEG spectrum analysis method has been used to analyze brain activity when relaxation was experienced. However, the spectrum analysis method has a limit that could not observe interactive reaction between brain-functional positions. Therefore, coherence between positions was analyzed to observe connectivity between the measurement positions in this study. Through the method, the reaction of the central nervous system caused by the emotion change was observed. Twenty-four undergraduates of both genders(12 males and 12 females) were asked to close their eyes and listen to the sound. During experiment, EEG was measured at eight positions. The eight positions were F3, F4, T3, T4, P3, P4, O1, and O2 in accordance with International 10-20 system. The sounds with white noise and without were used for relaxation experience. Subjective emotion was measured to verify whether or not they felt relaxation. Subjective emotion of participants were analyzed by ANOVA method(Analysis of Variance). In the result, it was proved that relaxation was subjectively evoked when participants heard sound. Accordingly, it was proved that relaxation could be enhanced by the mixed white noise. EEG coherence between the measurement positions was analyzed. T-test was performed to find its significant difference between relaxation and not-relaxation. In the results of EEG coherence, connectivity with occipital lobes has been increased with relaxation, and connectivity with parietal lobes has been increased with non-relaxed state. Therefore, brain connectivity has shown different pattern between relaxed emotion and non-relaxed emotion.

keyword : EEG Coherence, Relaxation, emotion measurement, Brain connectivity, White noise sound, EEG 코히런스, 이완, 감성평가, 뇌 연결성, White noise 음향

System response times(SRTs) are getting important while increasing the function of system. In the past, most research studied SRTs on situation of computer usage. There are lacking the research on simple domain. This study focuses on behavioral and emotional effect on situation of cell phone usage(experience 1; independent variables: degree of SRTs, dependent variables: behavioral and emotional evaluation). And this study investigates the behavioral and emotional effect in same SRTs on different situation(experience 2; independent variables: degree of SRTs, usage mode, dependent variables: behavioral and emotional evaluation, stress, mental strain). The result indicated that long SRTs increased problem solving time and negative emotion. User evaluated the system differently according to usage mode after they performed the same task. In other word, if user had a strong goal, then they felt more negative emotion and mental effort than the user don`t have a strong goal. In the goal mode group, it was important there are being of delay or not. This study demonstrated that SRTs and usage mode influence user`s emotion and behavior performance in same task.

keyword : system response time, SRTs, delay, usability, cell phone, usage mode, emotion, 시스템 반응 시간, 반응지연, 사용성, 휴대전화, 휴대폰, 사용모드, 정서, 감정

This study investigates how framing and the interaction with involvement influences responses toward a help campaign. There could be two possible predictions about the results of framing. One is that, because helping is a risk avoidance behaviors, the positive framing would dominant or the other is that, because helping is mainly mediated by negative emotions such as sadness or guilty, the negative framing would be preferred. The present research was to solve the conflicting predictions and was conducted with a experimental design. The participants were exposed to a campaign emphasizing either positive aspects of the help or negative contexts which would be maintained without any help. The results were that the main effect of framing was not existent, but the significant interaction with involvement on responses was found. The interaction of framing and involvement, though, included unexpected inconsistency between the results of attitude and behavioral intention. The theoretical and practical meanings of the results were discussed.

keyword : Campaign of Helping the Hungry, Positive Framing, Negative Framing, Involvement, Attitudes, Behavioral Intentions, 국제 기아 돕기 캠페인, 긍,부정 프레이밍, 관여도, 태도, 행위 의도

Emotional associations formed in the relationships between the consumer and luxury brands can be approached via examining the roles these associations play when they account for the brand equity of the luxury brands. The present study is an exploratory examination on the effects a battery of emotional relationships exert upon the consumers` intention to participate in promotional activities and in communities built around the brand, which is a crucial part of the luxury brand`s equity, in regards to Korea`s burgeoning import auto market. Participants who completed the survey are professionals such as medical doctors, lawyers, accountants, and university professors. Included in the analyses are the top six automobile brands in sales(i.e., BMW, Lexus, Mercedes-Benz, Honda, Audi, and Volkswagen), and the scores that the respondents provided regarding the way they relate themselves to particular foreign car brands are analyzed and yield six different groups of emotional associations(i.e., affection, identification, indispensability, reliability, intimacy, and awe). The brand equity is measured with three variables that show the levels of the consumer`s participatory intentions toward each brand are analyzed in order to elicit the antecedent variables and their impact on the participation variables in the regression models. When the respondents are divided into two groups by the levels of brand knowledge(i.e., scores drawn from the respondent`s capability of correctly linking specific automobile brands with the corresponding corporate brands), consumers with higher brand knowledge show distinct patterns of influential variables, as they differentiate themselves from less knowledgeable consumers in terms of the influential antecedent variables accounting for the consumer`s intended participation.

keyword : consumer-brand emotional relationships, brand equity, Luxury brand, consumer participation, automobile brands, 소비자-브랜드 감성관계, 브랜드 자산, 명품브랜드, 참여의도, 자동차 브랜드

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-to-peak P300 measures at 1.0 Hz HPF setting.

keyword : ERP, P300, high pass filter, three-stimulus oddball task, concealed information test, 고역통과필터, 세자극 오드볼 과제, 숨긴정보검사

Recently, people have been suffering from stress-related fatigue and psychological disorders. Most people depend on medicine for pain relief; many treat pain also through alternative medicine or replacement therapy. However, drug therapy has many side effects, including increased stress after the therapy. In comparison, alternative therapies such as massage and foot reflexology are less damaging to the body, and such therapies can be provided without physical or psychological discomfort. In this regard, the author had previously co-developed color foot reflexology, which combines the merits of color therapy and foot reflexology; color foot reflexology has been shown to have beneficial effects without undue pain. This study investigates the effects of color foot reflexology on the physiological response of the body by comparing the body`s response to the signal with that to the placebo. Healthy adult subjects were selected for the experiment, which was conducted under optimal experimental conditions and design. The results indicated that when stimulated, parasympathetic nerves increased in HRV and that blood pressure, pulse, body heat, peripheral blood flow were dramatically activated. However, the results for the placebo indicated minimal changes or irregular outcomes. The results provide strong evidence for the beneficial effects of the color foot reflexology instrument on the autonomic nervous system and on the physiological response of the body. Future research is warranted to verify the results of the current study by examining patients suffering from diseases and disorders arising from irregular physiological functions in the context of the foot.

keyword : color foot reflexology, placebo effect, HRV, human response of signal measuremen, 컬러 발반사 요법, 플라시보 효과, 인체생리신호측정

For an emotion retrieval system implementation to support pedestrian navigation, coordinating the pedestrian emotion model with the system user`s emotion is considered a key component. This study proposes a new method for capturing the user`s model that corresponds to the pedestrian emotion model and examines the validity of the method. In the first phase, a database comprising a set of interior images that represent hypothetical destinations was developed. In the second phase, 10 subjects were recruited and asked to evaluate on navigation and satisfaction toward each interior image in five rounds of navigation experiments. In the last phase, the subjects` feedback data was used for of the pedestrian emotion model, which is called `learning` in this study. After evaluations by the subjects, the learning effect was analyzed by the following aspects: recall ratio, precision ratio, retrieval ranking, and satisfaction. Findings of the analysis verify that all four aspects significantly were improved after the learning. This study demonstrates the effectiveness of the learning algorithm for the proposed pedestrian emotion model. Furthermore, this study demonstrates the potential of such pedestrian emotion model to be well applicable in the development of various mobile contents service systems dealing with visual images such as commercial interiors in the future.

keyword : Knowledge-Base, Pedestrian Emotion Model, Data Retrieval, Steepest Descent Method, 지식베이스, 보행자 감성모델, 정보탐색, 최대 경사법

The aim of this study was to investigate upper and lower limb muscle activity using EMG(electromyogram) sensors while walking and identify normal gait pattern using FSR(force sensing resistor) sensor. Fifteen college students participated in this study and their EMG and FSR signal were measured during stopping and walking trials. EMG signals from upper(pectoralis major and trapezius) and lower limbs(rectus femoris, biceps femoris, vastus medialis, vastus lateralis, semimembranosus, semitendinosus, soleus, peroneus longus, gastrocnemius medialis, and gastrocnemius lateralis) were obtained using the surface electrodes. FSR measured pressures on 8 areas of the sole of the foot during walking. EMG results showed that all muscle activities except for vastus lateralis and semimembranosus during walking had higher amplitudes than stopping. Additionally, muscle activities associated with stance and swing phase during walking were identified. Results on FSR showed that stance and swing phases were detected by FSR signals during a gait cycle. Eight gait phases-initial contact, loading response, mid stance, terminal stance, pre swing, initial swing, mid swing, and terminal swing- were classified.

keyword : Gait Phase, FSR, force sensing resistor, EMG, electomyogram, 보행 단계, 저항 센서, 근전도