• 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.

• 가정의 벗
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• v.34 no.5 s.393
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• pp.10-10
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• 2001

• 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.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.17-18
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• 2011

본 논문에서는 일반적으로 뇌파, 호흡운동, 표정변화, 심전도, 산소포화도, 인체의 땀 등을 이용하여 거짓말 탐지를 하는 것을 근간으로 하여 일상생활에서 쉽게 거짓말 탐지를 할 수 있는 시스템을 제작하여 제시한다. 이 거짓말 탐지기 시스템 제작을 통해 생체신호를 스마트폰과 연동함으로써 건강기기의 또 다른 방향을 제시할 것으로 기대된다.

• Korean Journal of Forensic Psychology
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• v.11 no.3
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• pp.349-370
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• 2020

This study was to test the effects of unanticipated questions on the number of general and verifiable details. In addition, the number of verifiable details would discriminate truth-tellers and liars more accurately than the number of general details. In a 2(Veracity: truth vs. lie) X 2(Question type: Expected questions vs. Unexpected questions) mixed-design study, truth tellers(N=40) were asked to visit a cafe on campus and liars(N=40) were told to fabricated a story as if they visited the cafe. Then, participants were interviewed about their trip to the cafe and asked four questions(two anticipated questions: 'report the trip in detail', 'describe the place'; two unanticipated questions: 'recall in reverse order', 'report verifiable details'). Each participant's statements were transcribed and coded by trained graduate students for the number of general details and verifiable details. The results showed that truth-tellers mentioned significantly more general details than liars regardless of the question type. On the contrary, there was no significant difference between liars and truth-tellers in the number of verifiable details. High percentages of truth-tellers(62.5%) and liars(80.0%) were classified correctly based on the number of general details whereas only 45.0% of truth tellers and 62.5% of liars were accurately classified by the number of verifiable details. Liars were found to speak more words when asked to provide verifiable details compared to a general open question, but the number of general details did not seem to increase accordingly. The limitations of this study and future research directions were discussed.

• 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.

• Proceedings of the Korea Information Processing Society Conference
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• 2016.10a
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• pp.878-879
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• 2016

본 논문에서는 기존의 고비용-고정형 거짓말탐지기의 단점을 극복하기 위하여 거짓말 시 발생되는 인체의 생리적 변화를 측정하기 위한 GSR (Galvanic Skin Response) 센서와 스트레스수치 알고리즘을 활용하여 스마트폰 기반 어플리케이션을 개발 및 그 활용방안을 제안한다. 사용자에게 부착하여 사용자의 생체 피부를 통해 외적자극 또는 심적 흥분/동요 상태에 의한 활동전위 발생 정도를 측정하고 이를 스트레스 지수로 변환할 수 있는 방법을 제시한다. 또한, 사용성 및 저비용성을 보장하기 위하여, 제안하는 거짓말 탐기기능을 스마트폰 어플리케이션화 하였다.

• Korean Journal of Cognitive Science
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• v.27 no.2
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• pp.247-273
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• 2016

Previous studies about lying were mainly executed in pressure situations, such as interviews or crime statements, which made people stressed. This study analyzed deceptive and non-deceptive writings in non-pressure situation through K-LIWC program, in which lies are rarely disclosed and hardly damage the liar even upon disclosure, Also, we compared these results with existing studies on lying. On both writing tasks, there were fewer first-person singular pronouns in deceptive writings than in the non-deceptive writings. The variables indicating cognitive complexity were less used by deceptive writings than by non-deceptive writings in first topic, but in the second topic, more were used by deceptive writings than true writings. In particular, previous studies claim that lies contain more negative emotional words while this report shows that lies in non-pressure situations contains more positive and fewer negative emotional words compared to truth. This finding implies that a situation influences the liar's psychological statement, which changes the contents of the lie.

• Korean Journal of Forensic Psychology
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• v.11 no.2
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• pp.155-171
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• 2020

The purpose of this study is to examine the effects of emotional arousal and cognitive load on pupil diameter during a lie detection interview. The guilty group (n = 30) committed a mock crime (i.e., stealing cash) and the innocent group (n = 30) performed a mission (i.e., sending a message) in the research assistant's office. After that, their pupil size was measured using a wearable eye-tracker during the interview. The interview questions were classified with the three cognitive load, three emotional arousal, and three neutral questions. The results indicate that the main effects of group and time were not significant, but the interaction between group and time was significant. It means that when answering cognitive load questions, the guilty group showed larger increase in pupil diameter than the innocent group. The present study suggests that inducing cognitive load is more effective than inducing emotional arousal during an interview when using pupil diameter as an index of deception, and it is expected to improve the accuracy of lie detection.

• 한국HCI학회:학술대회논문집
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• 2008.02a
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• pp.125-129
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• 2008

Lying has been such a wrong act in human society, but at the same time we are perpetrating lying surprisingly often in the interpersonal situation. Like this, between what we think and what we do about telling lie is pretty different, and these differences are came from ambivalent attitudes stemmed from different sources which is divided into the implicit and the explicit attitude. We find manipulative liars by simulated racing task by using virtual environment. Implicit Association Test was applied to them to see implicit beliefs, and used self-reported questionnaires to identify explicit attitude about lying. As a result they could manipulate the explicit measures but could not maneuver their own implicit attraction to lie Liars' deceptive behaviors usually occur in subtle and covert way so that it has been hard to notice and to know what lead them to lie. However, as we know those spontaneous process is linked with deception, triggering them lie, it became no more veiled, unpredictable actions.