• Korean Journal of Culture and Social Issue
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• v.12 no.2
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• pp.101-114
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• 2006

This study was examined the effective nonverbal behavior cues of detecting suspects' lies in the investigation scene. In order to search the suspects who drank the alcohol liquor without a permission, 18 soldiers were interviewed. 8 solders had drunken alcohol and had lied when was asked(lie group). The other 10 soldiers hadn't drunken alcohol and had told the truth(truth group). The mean frequencies of nonverbal behaviors were compared lie group with truth group. The following behaviors were measured by frequency: vocal characteristics (high pitch of voice, speech hesitations, speech error, frequency of pauses, period of pauses, latency period), facial characteristics (gaze, smile, touching face, blinking, facial micro-expression), body movement (illustrators, hand and finger movement, leg and foot movement, head movement, trunk movement, shifting position). As results, this study found that deception cues were periods and frequencies of pause, micro-expression, head movements. The lie group had less periods and frequencies of pause, and more micro-expression, head movements than truth group. But, this study didn't found Othello's error cues.

• Korean Journal of Culture and Social Issue
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• v.11 no.4
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• pp.1-22
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• 2005

Purposes of this study was as following; What differences do subjective indicators of deception detection according to high and low stake situations? Does groups difference appear in beliefs about deception cues? Is what differences between objective indicators and subjective indicators of deceptions? Participants of this study were consisted of university students, prison officers, prisoners. They completed a questionnaire concerning beliefs about 21 verbal and nonverbal behaviours in high/low-stake situations. For each behaviour, they were asked to rate on a seven-point scale how are these behaviours changed comparing to normal times. The results were that subjective indicators of deception were no differences between high-stake and low-stake situations, and no differences among groups. Also, it appeared that the subjective indicators of deception were substantly different from the objective indicators of deception.

• Anxiety and mood
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• v.4 no.2
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• pp.99-103
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• 2008

Objectives : The authors sought to examine the differences in the number of P300 detected by subjects in experimental and control groups when exposed to relevant stimuli. In addition, the authors tried to determinethe subjects' reaction time when asked to respond to relevant stimuli. Methods : The subjects were 20 informed female volunteers aged 22-38 years (median age : 24). Relevant stimuli (concealed information) were created by unknowingly exposing the two groups to obscene pictures and semantic questions. The number of P300 detected and the length of reaction time were compared between the two groups. Results : Contrary to theauthors' expectations, there were no significant differences in the number of P300 detected or in the length of reaction time between the two groups. Conclusions : These results indicate that, unlike a polygraph test, concealed information tests adopting P300 and reaction time as major physiological responses ofsubjects exposed to meaningful personal information might not serve as a valid practical tool in the field of criminal psychology. However, further studies involving a greater number of subjects are needed before a final conclusion regarding the validity of this new type of concealed information test can be drawn.

• Korean Journal of Human Ecology
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• v.17 no.6
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• pp.1079-1091
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• 2008

This study investigated developmental differences of moral evaluation for different lies. The subjects were 170 6-, 8-, and 10-year-olds. Children's understanding of, moral judgment for, and emotional reactions to antisocial lie, white lie, and trick lie were assessed. Major findings were as follows: 1. Children's understanding of lies was increased with age. Children understood well in definition for antisocial lie, whereas they understood poorly in definition for trick lie. 2. There were differences of children's moral judgment for lies according to age and lie types. Six- and 8-year-olds rated trick lie as the least serious lie type, whereas 10-year-olds rated white lie as the least serious lie type. 3. Children anticipated the greatest negative emotional reaction to antisocial lie, and the greatest positive reaction to trick lie by all ages. There was no difference of positive emotional reaction between antisocial lie and white lie for 6- and 8-year-olds. But 10-year-olds anticipated greater positive emotional reaction to white lie than antisocial lie.

• Korean Journal of Child Studies
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• v.30 no.1
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• pp.89-107
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• 2009

This study investigated how peer popularity is linked to children's understanding, moral judgment, and emotional reactions about three different types of lies. Participants were second (n=53) and fourth (n=54) grade children. Results showed that (1) popular children afforded better understanding of white lies than unpopular children; most children understood the definition of an antisocial lie, but not a trick lie. (2) Popular children rated lies more positively than unpopular children. Second graders did not differentiate between the morality of white and trick lies; fourth graders rated white lies as the least serious type of lie. (3) Second graders anticipated greater positive emotional reaction for antisocial lies and greater negative emotional reaction for white lies and trick lies, respectively, than fourth graders.

• Science of Emotion and Sensibility
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• v.20 no.3
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• pp.109-118
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• 2017

This study examined the effects of button response to probe and irrelevant stimuli on P300 amplitude and lie detection rate in P300-based concealed information test. Participants underwent the P300-based concealed information test (P300 CIT) in two conditions. In one button condition participants were instructed to press the left mouse button only when the target was present. In two button condition, they were asked to press the left mouse button for target and right button for non-target. The results showed that the response time to target stimulus was not significantly different between the two conditions, and the response time to the probe stimulus was significantly longer than the irrelevant stimulus. The P300 amplitudes for the probe and irrelevant stimulus were all smaller in one button condition compared to two button condition. However, the P300 amplitude difference between the probe stimulus and the irrelevant stimulus did not show a significant difference in the two experimental conditions, and the lie detection rate did not differ significantly between the two conditions. Based on these findings, the effect of button response on P300 CIT with a short inter-stimulus interval was discussed.

• Korean Journal of Culture and Social Issue
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• v.12 no.2
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• pp.21-43
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• 2006

This study was conducted to explore college students' implicit identification with others powerful or powerless, and implicit association of self-enhancement & authenticity with their relationships with others powerful or powerless. The study was based on measuring 3 sorts of IAT: an explicit identification test, RWA, & RISC. The results were summed up as follows: Students identified their selves with others more powerful than others powerless; expressed self-enhancement when they were with powerful others; and associated 'true' with relationship with others powerful. Men with high RWA & women with low RWA identified their selves more with others powerful; low RWA & high RISC groups' associated relationship with others powerful to 'true' and others powerless to 'false' more rapidly. These results were discussed in terms of structure of authoritarianism, SEM, relationship with others powerful and powerless.

• Neonatal Medicine
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• v.17 no.2
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• pp.245-249
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• 2010

Purpose: Numerous false alarms by pulse oximetry, which is widely used in neonatal intensive care unit, can delay response to true alarms. Masimo $SET^{(R)}$ was introduced lately, to overcome false alarms by motion. We compared the clinical performance of two devices (Nellcor $N-595^{(R)}$ and Masimo $SET^{(R)}$) for the evaluation of the false alarm frequency during usual motion artifacts and stable state. Methods: A total of 20 preterm infants weighing 1,000-2,500 g were enrolled in the study. The sensors of two devices were placed on the different feet on the same infants, and both devices were programmed to emit an alarm for episode of hypoxemia (SpO2$\leq$85%). The false alarms were defined as episodes of poor correlation with ECG heart rate, poor waveforms, and the absence of obvious signs of hypoxia. We compared the frequency of false alarms between the two devices. Results: The mean chronological age was 20.8 days and the mean body weight was 1,668 g on the study day. The frequency of total false alarm was significantly fewer for Masimo $SET^{(R)}$ pulse oximetry (48 in Nellcor $N-595^{(R)}$, 27 in Masimo $SET^{(R)}$) although the false alarm during usual motion artifacts was not significantly between two devices (32 in Nellcor $N-595^{(R)}$, 19 in Masimo $SET^{(R)}$). Conclusion: The Masimo $SET^{(R)}$ pulse oximetry has fewer false alarm rates and identified more true hypoxic events than Nellcor $N-595^{(R)}$ pulse oximetry. Therefore, it is useful for adequate oxygen therapy and helps to decrease unnecessary handling by clinicians and nurses.

• Korean Journal of Cognitive Science
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• v.27 no.3
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• pp.469-499
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• 2016

The present study investigated the cognitive mechanism underlying online processing of Korean syntactic (for example, A bed/a clock belongs to/doesn't belong to the furniture "침대는/시계는 가구에 속한다/속하지 않는다") and lexical negation (for example, A tiger/a butterfly has/doesn't have a tail "호랑이는/나비는 꼬리가 있다/없다") using an ERP(Event-related potentials) technique and a truth-value verification task. 23 Korean native speakers were employed for the whole experiment and 15's brain responses (out of 23) were recorded for the ERP analysis. The behavioral results (i.e. verification task scores) show that there is universal pattern of the accuracy and response time for verification process: True-Affirmative (high accuracy and short latency) > False-Affirmative > False-Negated > True-Negated. However, the components (early N400 & P600) reflecting the immediate processing of a negation operator were observed only in lexical negation. Moreover, the ERP patterns reflecting an effect of truth value were not identical: N400 effect was observed in the true condition compared to the false condition in the lexically negated sentences, whereas Positivity effect (like early P600) was observed in the false condition compared to the true condition in the syntactically negated sentences. In conclusion, the form and location of negation operator varied by languages and negation types influences the strategy and pattern of online negation processing, however, the final representation resulting from different computational processing of negation appears to be language universal and is not directly affected by negation types.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2005.11a
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• pp.385-388
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• 2005

감성이란 외부의 자극에 대해 직관적이고 반사적으로 발생하는 저절로 반응하는 현상이다. 감성은 살아온 사회$\cdot$문화적 배경에 따라 흑은 현재 상태에 따라서 다르게 나타난다. 하지만 다소 개인적인 차이가 있을 수 있을지라도 개인이 속한 사회에 따라서 비슷한 상황 아래서는 비슷한 유형의 반응이 나타난다. 현재 감성 인식을 위해서 개인의 행동이나 신체적인 표현을 이용한 감성 인식 연구가 진행 중이다. 이러한 방법은 감성을 표현하는 방식에서 개인차가 커지면 효용성이 떨어질 수밖에 없다. 우리가 거짓말 탐지기를 사용하는 것처럼 본 논문에서는 감정에 따라 달라지는 개인의 생체 신호를 이용해서 감성 인식을 하고자 한다. 이를 위해서 감성에 따른 여러 가지 생체 신호를 추출하고 감성 인식을 위한 생체 신호의 특징점을 파악하고 패턴분류를 하고자 한다.