Adults' ability to detect children's lying

Adults are poor deception detectors when examining lies told by adults, on average. However, there are some adults who are better at detecting lies than others. Children learn to lie at a very young age, a behavior that is socialized by parents. Yet, less is known about the ability to detect children's lies, particularly with regard to individual differences in the ability to detect this deception. The current study explored adult raters' ability to discern honesty in children who lied or told the truth about committing a misdeed. Results showed that adults are no better at detecting children's lies than they are with adult lies. In particular, adults were very poor at identifying children's honest statements. However, individual differences did emerge, suggesting that the ability to detect lying in children might be facilitated by relevant experience working with children. Implications for legal and mental health contexts are discussed.     

Overshadowed cues have reduced ability to retroactively interfere with other cues

The present series of experiments explores the interaction between retroactive interference and cue competition in human contingency learning. The results of two experiments show that a cue that has been exposed to a cue competition treatment (overshadowing) loses part of its ability to retroactively interfere with responding to a different cue that was paired with the same outcome. These results pose problems for associative models of contingency learning and are also difficult to explain in terms of current theories of causal reasoning. Additionally, it is proposed that in light of the interaction between interference and cue competition, interference could be used as an indirect measure for the study of cue competition effects.     

Individual differences between liars and the ability to detect lies

It is difficult to detect deception. Studies suggest it is little, ifany, better than chance. But some guidance is available. This study examinedpersonality traits, in particular self-consciousness in public and abilityto control behaviour. The effects can be observed in hand movements. Thisstudy examined the effects, of giving this information to assessors, upontheir ability to detect deception.     

Detecting true lies: police officers' ability to detect suspects' lies

Ninety-nine police officers, not identified in previous research as belonging to groups that are superior in lie detection, attempted to detect truths and lies told by suspects during their videotaped police interviews. Accuracy rates were higher than those typically found in deception research and reached levels similar to those obtained by specialized lie detectors in previous research. Accuracy was positively correlated with perceived experience in interviewing suspects and with mentioning cues to detecting deceit that relate to a suspect's story. Accuracy was negatively correlated with popular stereotypical cues such as gaze aversion and fidgeting. As in previous research, accuracy and confidence were not significantly correlated, but the level of confidence was dependent on whether officers judged actual truths or actual lies and on the method by which confidence was measured.     

The impact of expertise and sufficient information on psychologists' ability to detect malingering

Twenty-two forensic diplomates and 22 general clinical psychologists were asked to review a variety of psychological data from one of four cases (two cases of malingering and two cases of legal insanity) to determine whether data suggested malingering or insanity. Of the 44 psychologists who reviewed cases, 86.4% accurately determined whether their protocol was from a malingerer or an insane person. Forensic diplomates and clinical psychologists were equally accurate in their determinations; only three subjects from each group misidentified their case. In spite of their success, confidence levels for both groups were reported as moderate. These results contradict previous studies that have found psychologists to not only be poor detectors of malingering, but also overconfident in their ability to detect it. It is believed that the success of psychologists in this study compared to previous studies was due to improved methodology.     

Listening, not watching: situational familiarity and the ability to detect deception

In 4 experiments, the authors investigated the influence of situational familiarity with the judgmental context on the process of lie detection. They predicted that high familiarity with a situation leads to a more pronounced use of content cues when making judgments of veracity. Therefore, they expected higher classification accuracy of truths and lies under high familiarity. Under low situational familiarity, they expected that people achieve lower accuracy rates because they use more nonverbal cues for their veracity judgments. In all 4 experiments, participants with high situational familiarity achieved higher accuracy rates in classifying both truthful and deceptive messages than participants with low situational familiarity. Moreover, mediational analyses demonstrated that higher classification accuracy in the high-familiarity condition was associated with more use of verbal content cues and less use of nonverbal cues.     

Desirable and undesirable masculine and feminine traits in relation to students' dieting tendencies and body image dissatisfaction

Previous research showing greater femininity among overweight persons used measures of masculinity and femininity which have been criticized for conceptual and psychometric reasons. The present study used the Spence-Helmreich measures to examine the interrelationships among socially desirable and socially undesirable instrumental (masculine) and expressive (feminine) traits, body weight, and other attributes of cognitive concern about dieting and weight-related appearance. While body weight was unrelated to these measures of psychological masculinity and femininity, sex differences were found in the relationship of masculinity and femininity to dieting tendencies. dissatisfaction with physical appearance, and achievement motivation in these samples of college undergraduates.     

The ability of the Millon Clinical Multiaxial Inventory--Third Edition to detect malingering

This study investigated the ability of the Millon Clinical Multiaxial Inventory--Third Edition (MCMI-III) to discriminate students malingering psychopathology (n = 106) from bona fide psychiatric inpatients (n = 202). Students were randomly assigned to a fake-bad or an honest-responding condition. Analyses investigated the ability of the modifier indices to discriminate fake-bad group participants from the psychiatric inpatients. Scale X raw cutoff score > 178 yielded a positive predictive power (PPP) of 0.0, a negative predictive power (NPP) of 63.1, and a hit rate of 63.1%. Optimal cutoff scores were developed. Scale X Base Rate (BR) > 84 provided a PPP of 55.6, an NPP of 72.1, and a hit rate of 65.2%. Scale Y BR < 26 yielded a PPP of 52.5 and a hit rate of 64.8%. Receiver operating characteristic analyses found that Scale X best classified malingerers. Overall, the MCMI-III modifier indices were of minimal clinical utility in distinguishing college student malingerers from bona fide psychiatric inpatients.     

Classroom behavior and the ability to decode nonverbal cues in boys with severe emotional disturbance

Nonverbal decoding skills are important for successful social functioning, particularly for emotionally disturbed children. Boys with severe emotional disturbance (n = 25) and a control group of boys (n = 22) were compared regarding the relationship between ratings of classroom social behaviors and nonverbal decoding skills. Participants were predominantly African American. The Diagnostic Analysis of Nonverbal Accuracy (Nowicki, 2001; Nowicki & Duke, 1994) was administered individually to the boys while teachers completed ratings of their social behavior in the classroom. The 2 groups of boys did not differ in nonverbal skills. However, aggressive classroom behaviors were associated with specific nonverbal skills only for the boys with severe emotional disturbance. These findings suggest that nonverbal abilities may have a greater impact on the social behavior of emotionally disturbed boys. Future research is needed to better understand the social difficulties of boys with severe emotional disturbance.     

African elephants can detect water from natural and artificial sources via olfactory cues

Animal Cognition - Water is vital for mammals. Yet, as ephemeral sources can be difficult to find, it raises the question, how do mammals locate water? Elephants (Loxodonta africana) are...     

The effects of inversion and familiarity on face versus body cues to person recognition

Extensive research has focused on face recognition, and much is known about this topic. However, much of this work seems to be based on an assumption that faces are the most important aspect of person recognition. Here we test this assumption in two experiments. We show that when viewers are forced to choose, they do use the face more than the body, both for familiar (trained) person recognition and for unfamiliar person matching. However, we also show that headless bodies are recognized and matched with very high accuracy. We further show that processing style may be similar for faces and bodies, with inversion effects found in all cases (bodies with heads, faces alone and bodies alone), and evidence that mismatching bodies and heads causes interference. We suggest that recent findings of no inversion effect when stimuli are headless bodies may have been obtained because the stimuli led viewers to focus on nonbody aspects (e.g., clothes) or because pose and identity tasks led to somewhat different processing. Our results are consistent with holistic processing for bodies as well as faces. (PsycINFO Database Record (c) 2012 APA, all rights reserved).     

Contribution of somesthetic cues to the perception of body orientation and subjective visual vertical

Without relevant visual cues, the subjective visual vertical (SVV) is biased in roll-tilted subjects toward the body axis (Aubert or A-effect). This study focused on the role of the somatosensory system with respect to the SVV and on whether somesthetic cues act through the estimated body tilt. The body cast technology was used to obtain a diffuse tactile stimulation. An increased A-effect was expected because of a greater underestimation of the body position in the body cast. Sixteen subjects placed in a tilt chair were rolled sideways from 0 degrees to 105 degrees. They were asked to verbally indicate their subjective body position and then to adjust a luminous line to the vertical under strapped and body cast conditions. Results showed a greater A-effect (p < .001) but an overestimation of the body orientation (p < .01) in the body cast condition for the higher tilt values (beyond 60 degrees). Since the otolith organs produced the same gravity response in both conditions, errors were due to a change in somesthetic cues. Visual and postural errors were not directly related (no correlation). However, the angular distance between the apparent body position and the SW remained stable, suggesting that the change in somatosensory pattern inputs has a similar impact on the cognitive processes involved in assessing the perception of external space and the sense of self-position.     

Inescapable shock and attention to internal versus external cues in a water discrimination escape task

In these experiments we examined discrimination learning in a water escape task following exposure to escapable, yoked inescapable, or no electric shock. Inescapable shock did not have an effect on swim speeds in any of the experiments. Inescapable shock interfered with the acquisition of a position (left-right) discrimination when an irrelevant brightness cue (black and white stimuli) was present. However, inescapable shock did not affect the acquisition of the position discrimination when the irrelevant brightness cue was removed. Inescapably shocked subjects showed facilitated learning relative to escapably shocked and nonshocked subjects when the brightness cue was included as a relevant cue. These data may resolve discrepancies between studies that did, and did not, find inescapable shock to interfere with the acquisition of discriminations. Moreover, they point to attentional processes as one locus of the cognitive changes produced by inescapable shock and suggest that exposure to inescapable shock biases attention away from "internal" response-related cues toward "external" cues.     

Effects of feedback on the overestimated capacity to detect lies and the underestimated ability to tell lies

People tend to overestimate their capacity to detect lying in others and to underestimate their own ability to tell lies. These biases were demonstrated in a sample of 60 police officers. In a lie‐detection task, the officers evaluated their accuracy as high and were overconfident in their judgements. In fact, their performance was below chance level. Participants also received false feedback about their performance. When the feedback suggested that they had performed better than they thought, this further enhanced their perceived lie‐detection capacity and also increased their belief in their ability to conceal their own lies. When the feedback suggested they had performed worse than they thought, their ratings of both lie detection and their lie‐telling abilities were lowered. Results are discussed in terms of anchoring, availability, and the self‐assessment bias. On a practical level, the tendency of police interrogators to overestimate their ability to detect deception could change suspicion into certainty and increase the risk of a false confession. Copyright © 2003 John Wiley & Sons, Ltd.