Download or read book SACCADIC Eye Movements in Deception written by and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lie detection, as currently practiced, relies heavily on the use of measures of autonomic activity. It is presumed that lying is emotionally more arousing than truth telling that the increase in affective arousal is mirrored in the measures used in the conventional polygraph. We do not dispute the possibility that telling an untruth may be emotionally arousing. But this is not the entire picture. Zuckerman and Driver (1985) presented a four factor mode) of behavioral cues to deception, which, in addition to factors such as: attempted control, arousal, and affect, also includes cognitive factors, the category into which the present work falls.
Download or read book Detecting Concealed Information and Deception written by J. Peter Rosenfeld and published by Academic Press. This book was released on 2018-02-16 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Detecting Concealed Information and Deception: Recent Developments assembles contributions from the world’s leading experts on all aspects of concealed information detection. This reference examines an array of different methods—behavioral, verbal interview and physiological—of detecting concealed information. Chapters from leading legal authorities address how to make use of detected information for present and future legal purposes. With a theoretical and empirical foundation, the book also covers new human interviewing techniques, including the highly influential Implicit Association Test among others. Presents research from Concealed Information Test (CIT) studies Explores the legal implications and admissibility of the CIT Covers EEG, event-related brain potentials (ERP) and autonomic detection measures Reviews multiple verbal lie detection tools Discusses ocular movements during deception and evasion Identifies how to perceive malicious intentions Explores personality dimensions associated with deception, including religion, age and gender
Download or read book Conjugate Lateral Eye Movement as an Index of Psychophysiological Detection of Deception written by Massoud R. Vahabzadeh and published by . This book was released on 1987 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eyetracking in Psychological Assessment written by Alexander A. Oboznov and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The limitations of test inventories have necessitated objective measure techniques based on psychophysiological correlates to improve the validity of psychological assessment. Improvement of equipment for eye-movements recording and its significant advantages had led the way by using eyetracking in psychodiagnostics. Eye-tracking is increasingly being used in lie detection: accuracy is comparable to the polygraph testing (86-95%), but technologies are based on a different markers of deception, set of markers and their variability in lying are highly controversial. This study encompassed two goals: eye movement markers that distinguish value-driven attention from attention to a neutral stimulus or composition-enhanced stimulus (size, color, etc.); eye-movement markers of deception and testing of the hypothesis that stimulus configuration (choices to answer), type (text/image), relevance (positive/ negative) and types of deception have an impact on lie detectionu2019s efficiency. The procedure included presentation of neutral, meaningful and composition-enhanced stimuli; text/image presentation with true-or-false answer in various testing situations; control in-blank testing. Hardware: SMI Red-M 250Hz. Participants: N=108.The complex of oculomotor markers that statistically reliable distinguishes value-driven attention was found. The stable general complex of deception markers was revealed, which is common to all type of stimulus and all type of deception. The true answer is accompanied by a predominance of focal attention indicators, while random choice of false answer or active lying are manifested in increased ambient attention. The features of stimulus have an impact on the set and discriminating fineness of eye movement markers of deception. Dichotomic-choice answers are the most preferable. The type of stimulus is not decisive for deception detection. The markers of deception are depended on stimulus emotional valence. The discriminating fineness is maximal for stimulus having negative valence. Each type of deception also has a unique set of markers, that distinguishes it from other deception and could identify it. Selected markers formed the basis of truth-or-lie detection technology. Eye-tracking testing data has a significantly higher correlation with in-blank test results and multichannel polygraph recording data.The special software has been developed to assess background of individual response rate and set flexible criteria for marker-assisted selection of meaningful stimuli and false responses.
Download or read book Microsaccades written by Bettenbühl, Mario and published by Universitätsverlag Potsdam. This book was released on 2015-12-15 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first thing we do upon waking is open our eyes. Rotating them in our eye sockets, we scan our surroundings and collect the information into a picture in our head. Eye movements can be split into saccades and fixational eye movements, which occur when we attempt to fixate our gaze. The latter consists of microsaccades, drift and tremor. Before we even lift our eye lids, eye movements – such as saccades and microsaccades that let the eyes jump from one to another position – have partially been prepared in the brain stem. Saccades and microsaccades are often assumed to be generated by the same mechanisms. But how saccades and microsaccades can be classified according to shape has not yet been reported in a statistical manner. Research has put more effort into the investigations of microsaccades’ properties and generation only since the last decade. Consequently, we are only beginning to understand the dynamic processes governing microsaccadic eye movements. Within this thesis, the dynamics governing the generation of microsaccades is assessed and the development of a model for the underlying processes. Eye movement trajectories from different experiments are used, recorded with a video-based eye tracking technique, and a novel method is proposed for the scale-invariant detection of saccades (events of large amplitude) and microsaccades (events of small amplitude). Using a time-frequency approach, the method is examined with different experiments and validated against simulated data. A shape model is suggested that allows for a simple estimation of saccade- and microsaccade related properties. For sequences of microsaccades, in this thesis a time-dynamic Markov model is proposed, with a memory horizon that changes over time and which can best describe sequences of microsaccades.
Download or read book Illusions of Seeing written by Thomas Ditzinger and published by Springer Nature. This book was released on 2021-06-15 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why do we need two eyes? Why are all cats grey at night and appear to move faster the day? Why is the sky blue and the setting sun red? This book explains the multifaceted nature of perception, and discusses the mysteries of vision. It provides readers with experiments to help them discover optical illusions and the features of their own perception. Illusions of Seeing begins with a discussion on the essence of light and its perception to the human eye. It presents a comprehensive overview of the basic laws of human perception as well as the fundamentals of good gestalt. Subsequent chapters discuss geometric-optical illusions; the perception of form, brightness, and translucency and their interaction with each other; ambiguous perception, color vision, spatial vision. The book ends with a discussion of the perception of motion and its interaction with color, form, and spatial depth with a full chapter devoted to illusions in our everyday life. Consider this your travel guide in the marvelous world of sight, to experience a completely individual way to understand and improve your own perception. Illusions of Seeing will be of interest to psychologists, physicists, biologists, and undergraduate and graduate students within the field of cognitive psychology.
Download or read book Lie to Me written by Mayde Collins and published by . This book was released on 2010 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research has shown that deception detection accuracy in a legal setting falls into one of two categories: subjective and biased or expensive and intrusive. Consequently, discovering an unbiased, non-intrusive method of pinpointing when an individual is lying would aid interrogators in the fact finding process. This study used 10 college student participants 18 years or older and with the aid of an eye tracking device, measured eye movement when answering a series of questions truthfully and deceitfully to determine if distinctions in degree of movement and direction of movement accurately distinguished deception. Furthermore, participants were classified into two groups, high psychopathinc traits or low psychopathic traits, following an administration of the Psychopathic Personality Inventory Revised (PPI-R), to note if further distinction via these groups was possible. Analysis of variance and a series of Pearson's correlations were used to assess the data and found some support for eye-trackiing in deception detection, though further analysis with a larger sample size is needed.
Download or read book Eye Gaze and Hesitation as Perceived Indicators of Deception written by Timothy Irwin Mertz and published by . This book was released on 1984 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lie Detection and Eye Movements written by Philippe Kaizen and published by . This book was released on 2017-02-15 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lie detection and eye-movements by Philippe Kaizen Learn how to spot a liar with this in-depth analysis of eye-movements. Author's note: This book is preferentially directed towards those who already possess a certain expertise in lie detection. This is not an obligation but this book explores the subject of eye movement in lie detection more intensively. This book will benefit you with a precise awareness in eye movement, directly ensued from my professional experience acquired during numerous interrogations. Here's what you will get in this e-book: The fundamentals of eye-movements in the field of lie detection The inverted eye-movement Lowering or fixing the gaze when lying How to Fake eye-movement deliberately... Yes it is possible... As you will see in this e-book, eye-movements and lie detection are far from what we may find in TV series where the hero would evidently declare: "look, he is looking to his right, therefore he is a liar!" So, you want to know more ? Scroll to the top and click the Buy button for instant download I wish you an nice reading. Philippe Kaizen.
Download or read book Eye Tracking Detection of Deception written by Fernando Mendes de Barros and published by . This book was released on 2018 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Concealed Information Test (CIT) is one of the most scientifically supported techniques of lie-detection to date, and it is specifically used for detecting individuals’ knowledge of crime details. Advancements in the field of eye-tracking research also indicate that pupillometry data could be of value for detection of deception techniques. Recognising a research gap regarding the potential benefits of using eye-tracking data for detection of concealed information in CIT studies, the present study investigated whether eye fixation duration (i.e. dwell time) and average pupil size (APS) could predict individuals’ attempts to conceal information in a CIT procedure that used mock-crime photographs as its primary source of test stimuli. A total of 30 participants took part in a mock-crime CIT experiment and were assigned to two groups (guilty and innocent). Guilty participants were required to enact a mock-theft, whereas innocent participants performed an observation task. The CIT had two types of question trials (critical and control-relevant trials). Critical trials presented the simultaneous display of crime-relevant and crime-irrelevant photographs, and correct answers could only be known to guilty participants. In control-relevant trials, the correct answers could only be known to innocent participants, and they showed the simultaneous display of control-relevant and control-irrelevant photographs. Results revealed that guilty participants displayed significant increases in APS when responding to both critical and control-relevant trials, in comparison to innocent participants. Moreover, neither guilty nor innocent participants displayed significant differences in APS between responses towards relevant and irrelevant photographs. Regarding dwell time responses, results showed that only guilty participants presented significant decreases in mean dwell time towards relevant(i.e. known)photographs, compared with irrelevant photographs in critical trials. By contrast, innocent participants displayed significant increase in dwell time towards relevant photographs in comparison to irrelevant photographs in control-relevant trials, whereas guilty participants presented significant decrease in dwell time towards relevant photos in these trials. These results suggest that guilty participants engaged in avoidance behaviour during the CIT examination, and detection of participants’ attempts to conceal information is possible by targeting guilty participants’ eye-movement patterns. Moreover, data from innocent participants suggest that innocent participants are less likely to engage in avoidance behaviour during CIT examinations and they may display an orienting response towards known test stimuli instead.
Download or read book Eye Movements written by Dennis F. Fisher and published by Routledge. This book was released on 2017-03-27 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1981, this volume represents the edited proceedings of the third symposium on eye movements and behaviour sponsored by the US Army Human Engineering Laboratory. The conference, titled "The Last Whole Earth Eye Movement Conference" was held in Florida in February 1980. As the conference approached, seizure of the American hostages by the Iranian militants, the Russian invasion of Afghanistan, and the uncertain economic outlook around the world made it appear as though the title was a self-fulfilling prophecy. But the meeting proved highly successful and people throughout the world seemed to be adapting to the stresses of international tension, making the possibility of subsequent meetings more likely. The present volume is intended to serve as a complementary text to the earlier texts Eye Movements and Psychological Processes (Monty & Senders, 1976) and Eye Movements and the Higher Psychological Functions (Senders, Fisher & Monty, 1978), rather than a revision and update of them.
Download or read book Factors Determining the Latency of Saccadic Eye Movements written by E. Leslie Cameron and published by . This book was released on 1995 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Visual and Control Aspects of Saccadic Eye Movements written by Laurence R. Young and published by . This book was released on 1966 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The research related in this report represents part of a continuing effort to study the physiology of the visual system in man using the experimental and analytic techniques of control engineering. Recent reports have dealt with the dynamics of the vergence and version tracking loops, emphasizing the intermittent characteristics of the latter, and some consideration of intraocular pressure regulation. This report consists of two studies related to saccadic eye movements -- those rapid conjugate eye movements which jump the eyes about voluntarily and involuntarily. These saccades form the position correcting loop for visual tracking to keep the eyes "on target". Part one of the report, by Dr. L. R. Young, investigates the control aspects of saccades, considering the information used, the feedback available, and the observed mechanical dynamic performance of this fast "slewing" control. Some new experimental results on the saccadic dead zone lead to a simple statistical theory for the time of occurrence of small corrective eye movements. The question of eye movement proprioception is discussed and a variety of saccadic control models are critically reviewed. Part two of the report, by Drs. B. L. Zuber and L. Stark, concentrates on the information acquisition associated with eye movements, rather than the mechanical characteristics. The miniature involuntary eye movements occurring during fixation are reexamined from the point of view of their effect on visual acuity. Results are presented on saccadic suppression, or the elevation of visual acuity thresholds associated with microsaccades and voluntary saccadic movements. Considered together with suppression of vision during the fast phase of vestibular nystagmus and pupillary response suppression during saccades, these results bear directly on overall models of information processing in the visual control system."--Preface.
Download or read book Visual and Control Aspects of Saccadic Eye Movements written by L. R. Young and published by . This book was released on 1966 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Educing Information written by and published by Center for Strategic Intelligence Research Joint. This book was released on 2006 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Credibility Assessment written by David C. Raskin and published by Academic Press. This book was released on 2013-12-17 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2001, the late Murray Kleiner and an array of experts contributed to the Handbook of Polygraph Testing, published by Elsevier, which examined the fundamental principles behind polygraph tests and reviewed the key tests and methods used at that time. In the intervening thirteen years, the field has moved beyond traditional polygraph testing to include a host of biometrics and behavioral observations. The new title reflects the breadth of methods now used. Credibility Assessment builds on the content provided in the Kleiner volume, with revised polygraph testing chapters and chapters on newer methodologies, such as CNS, Ocular-motor, and behavioral measures. Deception detection is a major field of interest in criminal investigation and prosecution, national security screening, and screening at ports of entry. Many of these methods have a long history, e.g., polygraph examinations, and some rely on relatively new technologies, e.g., fMRI and Ocular-motor measurements. Others rely on behavioral observations of persons in less restricted settings, e.g., airport screening. The authors, all of whom are internationally-recognized experts associated with major universities in the United States, United Kingdom, and Europe, review and analyze various methods for the detection of deception, their current applications, and major issues and controversies surrounding their uses. This volume will be of great interest among forensic psychologists, psychophysiologists, polygraph examiners, law enforcement, courts, attorneys, and government agencies. Provides a comprehensive review of all aspects of methods for deception detection Includes methods being used in credibility, such as autonomic, CNS, fMRI, and Ocular-motor measures and behavioral and facial observation Edited by leaders in the field with over 25+ years of experience Discusses theory and application
Download or read book Attention Shifts and Saccadic Eye Movements written by Maria Lourdes Anllo-Vento and published by . This book was released on 1987 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
