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PubMed2004

Appearing truthful generalizes across different deception situations.

The authors investigated whether the ability to appear truthful is specific to deception situations. Male participants were interrogated after they took part in 2 high-stake deception situations, one involving a mock crime and another involving a false opinion. The videotaped interrogations from each situation were shown to independent groups of undergraduate observers. The proportion of observers who judged each participant as truthful in one situation correlated highly with the proportion of observers who judged the same participant as truthful in the other situation. This was not correlated with physiognomy judgments. Follow-up studies revealed that although the participants showed consistency in their facial, body, and paralinguistic behaviors across situations, observers' judgments seemed to be driven only by the consistency of the dynamic facial behaviors. These results are discussed in terms of the evolutionary importance of the face in communication.

Adolescent↗
PubMed2001

Deception detection: interrogators' and observers' decoding of consecutive statements.

This study is an examination of two forensically important but previously neglected issues in interpersonal deception. First, which cues do lie catchers-who have access to repeated interrogations-pay attention to in order to detect deception? Second, do face-to-face interacting interrogators differ from noninteracting observers in terms of how they perceive a suspect? After watching a staged event, 24 suspects (12 liars and 12 truth tellers) were interrogated three times over a period of 11 days. After the final interrogation, the veracity of each suspect was assessed by his or her interrogator and by 6 observers who had watched the interrogations on video only. The results of the experiment showed that consistency over time was by far the most commonly used cue for justifying veracity judgments. Critically, the predictive accuracy for this cue was alarmingly low. As opposed to results from previous research, the interrogators used verbal cues to a significantly greater extent than did the observers. Furthermore, a probing effect was shown (i.e., probed suspects were perceived as significantly more honest than nonprobed suspects). Finally, limited support for a previously reported honesty effect was obtained (i.e., that interrogators perceive suspects to be more honest than do observers).

Cues↗
PubMed1998

Self-Deceptive Enhancement and Impression Management correlates of EPQ-R dimensions.

The Self-Deceptive Enhancement and Impression Management scales of the Paulhus (1991) Balanced Inventory of Desirable Responding were correlated with the Psychoticism, Neuroticism, Extraversion, and Lie scales of the Eysenck EPQ-R (Eysenck & Eysenck, 1991) in a student sample. Extraversion correlated positively and Neuroticism correlated negatively with Self-Deceptive Enhancement, whereas Psychoticism correlated negatively and the Lie scale correlated positively with Impression Management. These findings suggest that the EPQ-R scales are involved in different aspects of socially desirable responding. It was concluded that social desirability should not be controlled in measures of Extraversion and Neuroticism but it should be controlled in measures of Psychoticism.

Adult↗
PubMed2003

Neural correlates of different types of deception: an fMRI investigation.

Deception is a complex cognitive activity, and different types of lies could arise from different neural systems. We investigated this possibility by first classifying lies according to two dimensions, whether they fit into a coherent story and whether they were previously memorized. fMRI revealed that well-rehearsed lies that fit into a coherent story elicit more activation in right anterior frontal cortices than spontaneous lies that do not fit into a story, whereas the opposite pattern occurs in the anterior cingulate and in posterior visual cortex. Furthermore, both types of lies elicited more activation than telling the truth in anterior prefrontal cortices (bilaterally), the parahippocampal gyrus (bilaterally), the right precuneus, and the left cerebellum. At least in part, distinct neural networks support different types of deception.

Adult↗
PubMed2006

Self-liking and self-competence separate self-evaluation from self-deception: associations with personality, ability, and achievement.

The similarities between measures of self-evaluation and self-deception are reviewed, and a method for discriminating between them is proposed, using personality profiles and relations to ability and achievement. Across two samples, the Rosenberg Self-Esteem Scale (RSES) and Tafarodi's measures of self-evaluation were used to demonstrate that the RSES and Self-Liking are more similar to Self-Deceptive Enhancement than is self-competence. Further, Self-Competence is uniquely associated with cognitive ability and both academic and creative achievement. It is concluded that, along with self-liking, self-competence is a useful form of self-evaluation that should be measured and taken into account in research that has traditionally focused on self-esteem.

Achievement↗
PubMed1992

Deception and sabotage in autistic, retarded and normal children.

We investigated autistic, mentally retarded, and normal children's ability to deceive or obstruct an opponent. When required to tell a lie (saying that a box was locked) autistic children performed significantly worse than their controls, taking into account mental age. However, they readily prevented a competitor from gaining a reward by physical manipulation (locking a box). Their success on sabotage demonstrated that their failure on deception was not due to an inability to understand the task. Performance on deception was predicted by performance on a false belief attribution task. The present findings confirm that autistic children have a specific deficit in understanding and manipulating beliefs.

Adolescent↗
PubMed1993

On the morality of deception--does method matter? A reply to David Bakhurst.

Does it signify morally whether a deception is achieved by a lie or some other way? David Bakhurst has challenged my view that it can signify. Here I counter his criticisms--firstly, by clarifying the terminology: What counts as a lie? Secondly, by exploring further what makes lying wrong. Bakhurst maintains that lying is wrong in that it infringes autonomy--and other deceiving stratagems, he says, do so equally. I maintain that lying is wrong in that it endangers trust--and other types of deceiving stratagems do not do so equally. Lying to patients, I contend, is an abuse of their trust. Other forms of their intentional deception need not be so, although, in our autonomy-minded culture, they are likely to be so.

Beneficence↗
PubMed2003

The fundamental attribution error in detecting deception: the boy-who-cried-wolf effect.

Most people are unable to detect accurately when others are lying. Many explanations for this inability have been suggested but the cognitive heuristics involved in lie detection have received little attention. The present study offers evidence from two experiments, based on two different groups of observers, judging two different kinds of lies, presented in two different testing situations, that the fundamental attribution error significantly undermines the ability to detect honesty and deception accurately. Trait judgments of trustworthiness were highly correlated with state judgments of truthfulness, leading, as predicted, to positive correlations with honest detection accuracy and negative correlations with deception detection accuracy. More accurate lie detectors were significantly more likely than less accurate lie detectors to separate state and trait judgments of honesty. The effect of other biases, such as the halo effect and the truthfulness bias, also are examined. Implications for future research and practice are discussed.

Adolescent↗
PubMed2003

Darwin, deception, and facial expression.

Darwin did not focus on deception. Only a few sentences in his book mentioned the issue. One of them raised the very interesting question of whether it is difficult to voluntarily inhibit the emotional expressions that are most difficult to voluntarily fabricate. Another suggestion was that it would be possible to unmask a fabricated expression by the absence of the difficult-to-voluntarily-generate facial actions. Still another was that during emotion body movements could be more easily suppressed than facial expression. Research relevant to each of Darwin's suggestions is reviewed, as is other research on deception that Darwin did not foresee.

Affect↗
PubMed1996

Hemispheric differences in detection of deception with content-filtered speech.

Participants (N = 139) listened to 15 speakers (8 deceptive, 7 truthful) in one of three conditions, left ear (right hemisphere), right ear (left hemisphere), and both ears (combined hemispheres) and attempted to decide which speakers were deceptive. Accuracy of detection was not significantly different across the three conditions.

Attention↗
PubMed2004

Diagnosing estimate distortion due to significance testing in literature on detection of deception.

Studies journals typically report or feature results significant by statistical test criterion. This is a bias that prevents obtaining precise estimates of the magnitude of any underlying effect. It is severe with small effect sizes and small numbers of measurements. To illustrate the problem and a diagnosis technique, results of published studies on the detection of deception are graphed. The literature contains large effect sizes affirming that deceptive responses in contrast to truthful responses are associated with more reactive Skin Resistance Responses. These effect sizes when graphed on the x-axis against n on the y-axis are distributed as funnel graphs. A subset of studies show support for predicted small to medium effects on different physiological measures, individual differences, and condition manipulations. These effect sizes graphed by sample ns follow negative correlations, suggesting that effect sizes from published values of t, F, and zeta are exaggerations.

Deception↗
PubMed2003

Empathy, communication, deception.

Empathy is understood as a mode of understanding operating on a subconscious level of mental processing. The cognitive element can only abstractly be distinguished from its affective expression. When recognizing a fellow creature we involuntarily sympathize with it. Recognition of covert motivations of overt behavior is the first step in formation of a communication channel between two (or more) empathizing agents. Yet, since communication evolved in variably complex social environments it was subject to pressure of conflicting individual interests. Deception thus evolved as an adaptive evolutionary strategy. Empathic understanding does not necessarily entail recognition of agent's real intentions. Deception may be achieved on both conscious and unconscious processing levels. A sufficient degree of biopsychosocial maturity must be reached for a child to be able to independently recognize verbal and non-verbal communication finesses. Once this level has been attained, the prevailing emotional orientation determines his/her degree of empathizing competence.

Communication↗
PubMed2006

From flawed self-assessment to blatant whoppers: the utility of voluntary and involuntary behavior in detecting deception.

Malingering occupies a range on a continuum from biased self-perception to conscious, deliberate, serious lies. One aspect of this continuum is the element of self-conscious or deliberate control. Suggestions from Darwin's writings concerning the role of voluntary and involuntary activation of the facial muscles are examined and illustrated with data from a 40 year program of research on deception. The impact of the voluntary-involuntary distinction on the appearance, timing, symmetry and cohesion of facial expressions of emotion is explained. Data relevant to changes in vocal and gestural aspects of demeanor in honest and deceptive behavior are also reviewed. The relevance of these laboratory-based findings on the voluntary control of nonverbal behavior in assessing some types of malingering is discussed.

Behavior↗
PubMed1992

Oddball-evoked P300-based method of deception detection in the laboratory. II: Utilization of non-selective activation of relevant knowledge.

We used a deception paradigm modeled on the type used for pre-employment screening procedures. Our novel dependent measure was P300 amplitude. Event-related potentials (ERPs) were recorded while subjects were presented with a list of eight antisocial acts one at a time, and one target-response phrase to which a 'yes' button press was required. Subjects were instructed to try to escape detection during the ERP test if they were guilty of any of the acts. After the ERP test, ground truth was established by the completion of an innocent/guilty check list of antisocial acts under perceived anonymous conditions tending to favor honest responding. Subjects were classified as innocent (n = 14) or guilty (n = 17) based on their check list response to the relevant act 'Used Falsified ID'. When comparing the P300 amplitudes in response to the relevant and to another act, we found that most group analyses revealed significant differences between guilty and innocent subjects. The subjects were also individually classified by a 3-step algorithm which involved: (1) a bootstrap amplitude test that compared the bootstrapped amplitudes of the P300s to the relevant and to another act; (2) relevant-to-target item P300 amplitude ratios; and (3) relevant act P300 amplitudes. Overall, the algorithm yielded 87% accuracy. The present study was intended to be an advance over our previous study (Rosenfeld, et al., 1991), in which we correctly classified 89% of the subjects using a similar P300-based deception detection paradigm. However, the possible confounding limitation of that study was that subjects had to complete an innocent/guilty check list of their antisocial acts prior to the ERP test. The present study investigated the accuracy of the P300-based test when subjects did not admit or selectively rehearse their guilt of the relevant act prior to the ERP test.

Electrodes↗
PubMed2005

Orchid diversity: an evolutionary consequence of deception?

The Orchidaceae are one of the most species-rich plant families and their floral diversity and pollination biology have long intrigued evolutionary biologists. About one-third of the estimated 18,500 species are thought to be pollinated by deceit. To date, the focus has been on how such pollination evolved, how the different types of deception work, and how it is maintained, but little progress has been made in understanding its evolutionary consequences. To address this issue, we discuss here how deception affects orchid mating systems, the evolution of reproductive isolation, speciation processes and neutral genetic divergence among species. We argue that pollination by deceit is one of the keys to orchid floral and species diversity. A better understanding of its evolutionary consequences could help evolutionary biologists to unravel the reasons for the evolutionary success of orchids.

Journal Article↗
PubMed1985

Factors in the self-deception questionnaire: associations with depression.

Disagreement presently exists over whether depressed or nondepressed persons exercise more cognitive distortion on material about the self. A negative correlation between the Self-Deception Questionnaire (SDQ, Sackeim & Gur, 1978, 1979) and the Beck Depression Inventory (BDI, Beck, 1967) has been cited as evidence that it is the nondepressed individuals who exercise more distortion (Sackeim, 1983). This negative correlation was replicated, and the SDQ was factor analyzed to determine which factors might account for the correlation with depression. The three largest factors, identified by content themes of relationships with parents, emotionality, and denial of tabooed activities, correlated reliably with the BDI. Discussion focused on whether these correlations reflect differences in self-deception that are associated with depression or differences in veridical responding between depressed and nondepressed subjects on those items in the SDQ. Suggestions for future research and possible therapeutic implications are also discussed.

Cognition↗
PubMed1993

Sex differences in social support, self-deception, hostility, and ambulatory cardiovascular activity.

The quality of the social network, ambulatory cardiovascular indices, and other health risks were assessed in 129 students. Ss carried an ambulatory monitor for a working day and completed a social support scale, an index of daily stress, and measures of anger expression, hostility, depression, and self-deception. Alcohol intake and skinfold thickness were assessed. Results indicated that quality of social support was related in an inverse manner to ambulatory systolic pressure in women only. Stepwise multiple regression confirmed that social support was an independent predictor of daily systolic pressure for women and was not confounded with subjective stress. For men, tendencies to self-deception and high hostility were independently related to elevated blood pressure and heart rate.

Adolescent↗
PubMed1996

Effects of impression management and self-deception on the predictive validity of personality constructs.

This study tests whether 2 types of response distortion (self-deception and impression management) affect the predictive validity of 2 of the "Big 5" personality dimensions, conscientiousness and emotional stability, in 2 applicant samples of long-haul semitruck drivers (n = 147 and n = 139). As hypothesized, conscientiousness (p = -.26 and -.26) and emotional stability (p = -.23 and -.21) were valid predictors of voluntary turnover in the 2 samples. Also as hypothesized, conscientiousness was a valid predictor of supervisory ratings of performance (p = .41 and .39) in the 2 samples. Although not hypothesized, emotional stability was also significantly related to supervisor ratings of performance (p = .23 and .27). Results from structural equations modeling indicated that applicants did distort their scores on both personality dimensions and the distortion occurred both through self-deception and impression management; however, neither type of distortion attenuated the predictive validities of either personality construct.

Adult↗