We kindly inform you that, as long as the subject affiliation of our 300.000+ articles is in progress, you might get unsufficient or no results on your third level or second level search. In this case, please broaden your search criteria.
Qualitative indicators are an important element in establishing truth in polygraph examinations. Considering this, a study of the change in the quality of the signal from the photoplethysmograph in subjects who have used nail polish is extremely relevant and requires a comprehensive qualitative study. The paper uses general scientific and empirical methods of observation and experimentation, and is a comprehensive study of the effects of nail polish on the quality of the photoplethysmograph signal. It is the first time that this type of research has been conducted using a comparative analysis of subjects who did and did not use nail polish.
More...
The Integrated Zone Comparison Technique (IZCT) was utilized with computerized polygraph instrumentation and the Academy for Scientific Investigative Training’s Horizontal Scoring System ASIT PolySuite algorithm, as part of a blind study in the detection of deception. This paper represents a synergy analysis of combining fMRI only deception data with each of the three individual physiological parameters that are used in polygraph. They include the electro-dermal response (EDR), pneumo, and cardio measurements. In addition, we compared the detection accuracy analysis using each single parameter by itself. The fMRI score and each individual polygraph parameter score on individual subjects were averaged to establish an overall score.
More...
The objective of the study was to test how selected respondents (psychologists and police officers) evaluate the diagnostic value of symptoms (cues) of deception listed in literature on the subject. To achieve that, 16 verbal and non-verbal (behavioural) symptoms listed in literature as most typical and most frequently accompanying deceit were ever located by 100 police officers and 101 psychologists (n=201). Their task was to group the symptoms according to the following categories: “oft en present”, “rarely present”, and “never present”. Both the groups of respondents claimed that in their work they have to frequently decide whether their interlocutors tell the truth or lie, and are convinced that they are capable of accurate detection of deception through their assessment of verbal and non-verbal (behavioural) symptoms accompanying lie. The latter belief is clearly refuted by the results of all known experimental studies. In fact, police officers and psychologists agreed that the most diagnostic symptom is “avoidance of eye contact” (143 respondents categorised it as often present). “High frequency of eye blinking” was considered least diagnostic of the symptoms, with only 47 respondents claiming that it is frequent, together with “head scratching” with 51 considering it as occurring “often”). Convergence of the respondents’ opinions was high. No significant differences between the occupational and age groups, and genders were discovered. The results of the study remain coherent with the results of studies by other authors maintaining that the skill of detecting deception in the interlocutor is determined neither by education, nor occupation, nor gender, nor the age of the person performing the detection.
More...