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PubMed2002

Lie detection by functional magnetic resonance imaging.

The accurate detection of deception or lying is a challenge to experts in many scientific disciplines. To investigate if specific cerebral activation characterized feigned memory impairment, six healthy male volunteers underwent functional magnetic resonance imaging with a block-design paradigm while they performed forced-choice memory tasks involving both simulated malingering and under normal control conditions. Malingering that demonstrated the existence and involvement of a prefrontal-parietal-sub-cortical circuit with feigned memory impairment produced distinct patterns of neural activation. Because astute liars feign memory impairment successfully in testing once they understand the design of the measure being employed, our study represents an extremely significant preliminary step towards the development of valid and sensitive methods for the detection of deception.

Adult↗
PubMed1993

The 'control' question 'test' (CQT) polygrapher's dilemma: logico-ethical considerations for psychophysiological practitioners and researchers.

The so-called 'control' question 'test' (CQT) has been criticized on methodological and ethical grounds by psychophysiologists. The ethical analyses have focussed on the possibility that the CQT's interrogative features may elicit false confessions, but an empirical problem is that the rate of these false confessions is difficult to establish. In this conceptual note, this author raises a logico-ethical problem for the CQT, called the Polygrapher's Dilemma (PD). The two horns of the PD are to damage the innocent examinee classified as deceptive and damage to those examinees' psychological well being who are classified as non-deceptive to the relevant questions and who are not even debriefed concerning their feelings of unease about issues raised by the comparison, so-called 'control' questions. Although there may be arguments about which of the PD's two horns are more serious, there is no doubt that both are, in an absolute sense, ethically negative. Nor is there an ethically justifiable third alternative available. It is also contended that not only practitioners but also researchers (who use the CQT in laboratory, 'mock-crime' situations) are affected by PD. Finally, it is noted that PD exists only for the CQT procedure and not for the more standardized and scientifically based Guilty Knowledge Technique.

Ethics, Professional↗
PubMed1991

Situational and psychophysiological factors in psychologically induced pain.

To investigate pain that occurs in the absence of painful stimulation, normal subjects were connected to a sham stimulator and were told that a headache could occur as a result of the electrical current they would receive. Half of the subjects who received this suggestion reported pain. The frequency and intensity of pain reports in a group which was given prior pain experience as a reference point in reporting pain and in a group which was exposed to a manipulation designed to reduce intentional deception were not significantly different from the pain reports of a group not exposed to these manipulations. The frequency of pain reports in subjects not connected to the sham stimulator but still asked to report pain was 25% which was significantly less than the frequency for subjects who were told there would be stimulation to the head. Pain ratings increased as the settings of the sham stimulator were increased. Subjects who reported pain had significantly fewer electrodermal responses to tones signaling them to prepare for a reaction time task. The results suggest that pain can be produced in the absence of peripheral stimulation. The pain does not appear to be due to intentional deception or the lack of a standard for comparison, but is strongly influenced by environmental cues. Psychophysiologically, pain responders were less attentive to signal stimuli.

Adult↗
PubMedDate not supplied

The psychology of factitious disorders. A reconsideration.

Factitious disorder (FD) is a form of somatization that involves apparent deception, simulation of illness, and imposture. This deception may be distinguished from other forms of lying in that patients with FD may suffer from underlying disturbances in the sense of reality and in reality testing. These features may be associated with a poorly consolidated sense of self and with difficulty regarding emotional experience as real. Factitious behavior may serve to stabilize the sense of self by concretizing and legitimizing the subjective experience of distress and by evoking responsiveness of a care-giver in a relatively safe, structured context. A psychotherapeutic stance focused on identifying and validating the patient's subjective experience may lead to a reduction in factitious behavior and to a more authentic and stable sense of self, in which emotional as well as physical experience is regarded as real. However, most patients with FD refuse treatment. Further, psychosis and suicidality are complications that may occur during the course of psychotherapy.

Adult↗
PubMed1999

Repressive/defensive coping, endogenous opioids and health: how a life so perfect can make you sick.

Hyperactivity of endogenous opioid systems has been postulated to mediate the associations between defensive/repressive coping styles, enhanced stress responsivity, and reduced immunocompetence. Study 1 examined whether repressive/defensive coping would be associated with greater sensitivity to opioid antagonism. Judgments of the painfulness of ascending series of electrocutaneous stimulation applied to the forearm were determined before and after the administration of naloxone and placebo in 38 men and 42 women. All subjects were healthy with a mean age of 32.9 years. Naloxone (10 mg i.v.) and placebo were administered in double-blind fashion and counterbalanced. Subjects were classified as High- and Low-defensive and repressive copers on the basis of scores on the Marlowe-Crowne Social Desirability Scale and the Balanced Inventory of Desirable Responding, respectively. High Self-Deception was associated with naloxone-induced hyperalgesia, whereas no effects of naloxone on pain ratings were observed in low-Self-Deceptive subjects. In Study 2, resting plasma beta-endorphin levels were found to be positively correlated with defensiveness in men (n = 26), but not women (n = 44). Study 3 examined 82 healthy subjects (mean age = 28.7 years). Beta-endorphin/defensiveness correlations were found to be greater following, compared to prior to, electrical nociceptive stimulation in men (n = 49), but unrelated in women (n = 33). These findings are consistent with the hypothesized endorphinergic dysregulation associated with repressive/defensive coping styles and are discussed in terms of the immuno-regulatory implications of such a dysregulation.

Adaptation, Psychological↗
PubMed2000

Fraud in medical research: an international survey of biostatisticians. ISCB Subcommittee on Fraud.

The characteristics of scientific fraud and its impact on medical research are in general not well known. However, the interest in the phenomenon has increased steadily during the last decade. Biostatisticians routinely work closely with physicians and scientists in many branches of medical research and have therefore unique insight into data. In addition, they have methodological competence to detect fraud and could be expected to have a professional interest in valid results. Biostatisticians therefore are likely to provide reliable information on the characteristics of fraud in medical research. The objective of this survey of biostatisticians, who were members of the International Society for Clinical Biostatistics, was to assess the characteristics of fraud in medical research. The survey was performed between April and July 1998. The participation rate was only 37%. We report the results because a majority (51%) of the participants knew about fraudulent projects, and many did not know whether the organization they work for has a formal system for handling suspected fraud or not. Different forms of fraud (e.g., fabrication and falsification of data, deceptive reporting of results, suppression of data, and deceptive design or analysis) had been observed in fairly similar numbers. We conclude that fraud is not a negligible phenomenon in medical research, and that increased awareness of the forms in which it is expressed seems appropriate. Further research, however, is needed to assess the prevalence of different types of fraud, as well as its impact on the validity of results published in the medical literature.

Biometry↗
PubMed2001

Response expectancies in placebo analgesia and their clinical relevance.

Response expectancies have been proposed as the major determinant of placebo effects. Here we report that different expectations produce different analgesic effects which in turn can be harnessed in clinical practice. Thoracotomized patients were treated with buprenorphine on request for 3 consecutive days, together with a basal intravenous infusion of saline solution. However, the symbolic meaning of this basal infusion was changed in three different groups of patients. The first group was told nothing about any analgesic effect (natural history). The second group was told that the basal infusion was either a powerful painkiller or a placebo (classic double-blind administration). The third group was told that the basal infusion was a potent painkiller (deceptive administration). Therefore, whereas the analgesic treatment was exactly the same in the three groups, the verbal instructions about the basal infusion differed. The placebo effect of the saline basal infusion was measured by recording the doses of buprenorphine requested over the three-days treatment. We found that the double-blind group showed a reduction of buprenorphine requests compared to the natural history group. However, this reduction was even larger in the deceptive administration group. Overall, after 3 days of placebo infusion, the first group received 11.55 mg of buprenorphine, the second group 9.15 mg, and the third group 7.65 mg. Despite these dose differences, analgesia was the same in the three groups. These results indicate that different verbal instructions about certain and uncertain expectations of analgesia produce different placebo analgesic effects, which in turn trigger a dramatic change of behaviour leading to a significant reduction of opioid intake.

Aged↗
PubMed2000

Theory of mind abilities of children with schizophrenia, children with autism, and normally developing children.

Theory of mind (ToM) abilities of children with schizophrenia, children with high functioning autism, and normally developing children, matched on mental age (MA), verbal MA, and performance MA, were compared. Both clinical groups were matched on chronological age as well, whereas the normally developing children were younger. A fact belief task, a value belief task, a deception task, and a false belief task were administered. The three groups did not differ on the fact belief task. Children with autism performed more poorly than normally developing children on value belief and false belief tasks, and more poorly than individuals with schizophrenia on the deception task. Children with schizophrenia performed more poorly than normally developing children only on the false belief task. Overall, the group with autism passed significantly fewer tasks compared to the normally developing group. ToM abilities correlated with verbal abilities for individuals with autism. The ToM abilities of children with paranoid schizophrenia and children with undifferentiated or disorganized schizophrenia did not differ. Findings strengthen the notion of a limited understanding of ToM in schizophrenia, and support the notion that ToM deficits, although more severe in autism, are not unique to autism.

Adolescent↗
PubMed2004

Religion's evolutionary landscape: counterintuition, commitment, compassion, communion.

Religion is not an evolutionary adaptation per se, but a recurring cultural by-product of the complex evolutionary landscape that sets cognitive, emotional, and material conditions for ordinary human interactions. Religion exploits only ordinary cognitive processes to passionately display costly devotion to counterintuitive worlds governed by supernatural agents. The conceptual foundations of religion are intuitively given by task-specific panhuman cognitive domains, including folkmechanics, folkbiology, and folkpsychology. Core religious beliefs minimally violate ordinary notions about how the world is, with all of its inescapable problems, thus enabling people to imagine minimally impossible supernatural worlds that solve existential problems, including death and deception. Here the focus is on folkpsychology and agency. A key feature of the supernatural agent concepts common to all religions is the triggering of an "Innate Releasing Mechanism," or "agency detector," whose proper (naturally selected) domain encompasses animate objects relevant to hominid survival--such as predators, protectors, and prey--but which actually extends to moving dots on computer screens, voices in wind, and faces on clouds. Folkpsychology also crucially involves metarepresentation, which makes deception possible and threatens any social order. However, these same metacognitive capacities provide the hope and promise of open-ended solutions through representations of counterfactual supernatural worlds that cannot be logically or empirically verified or falsified. Because religious beliefs cannot be deductively or inductively validated, validation occurs only by ritually addressing the very emotions motivating religion. Cross-cultural experimental evidence encourages these claims.

Anxiety↗
PubMed2004

False belief understanding in Cantonese-speaking children.

The present study investigates the performance of 96 Cantonese-speaking three- to five-year-old preschoolers on three false belief tasks - a deceptive object, a change of location, and an unexpected contents task encompassing a variety of task factors. Most importantly, the research examines the possibility that false belief performance depends on specific linguistic factors such as the type of verb used in the test question--an explicitly false vs. a neutral belief verb. Cantonese was chosen as particularly useful for examining this question because it explicitly codes belief status as either neutral (nam5) or false (ji5wai4), and because it offers additional linguistic and cultural contrasts to research conducted on false belief with children learning English and other Indo-European languages. As expected, a strong age effect was found, as well as a significant advantage for children who received the explicit false belief (ji5wai4) wording and for those who were asked to explain rather than predict the protagonist's actions. Interestingly, there was also a strong task difference with children performing better on the deceptive object task than on the other two false belief tasks. We argue that these results point both to universal trajectories in theory of mind development and to interesting, but localized, effects of language and culture on children's false belief understanding.

Child, Preschool↗
PubMed2000

Photographic cues do not always facilitate performance on false belief tasks in children with autism.

Previous studies have indicated that a pictorial representation of a prior belief can help 3-year-old children (Mitchell & Lacohee, 1991) as well as children with autism (Charman & Lynggaard, 1998) to pass false belief tasks that used the deceptive box or "Smarties" paradigm. The studies reported here attempted to replicate these findings using the unexpected transfer or "Sally-Anne" paradigm, which requires children to predict the actions of a protagonist on the basis of a false belief. Results showed no facilitative effect on "Sally-Anne" task performance for the children with autism or for comparison children of either representational or nonrepresentational cues. This effect was found even in children who benefited from the intervention with the deceptive box paradigm. The findings raise issues regarding the way false belief tasks are conceptualized by experimenters and the demands different false belief paradigms make on children.

Autistic Disorder↗
PubMed2000

Problem gambling among adolescent students in the atlantic provinces of Canada.

The objectives of the present study were to determine the prevalence of problem gambling among adolescent students in the Atlantic provinces of Canada, and to determine the role of age and deception about legal age status as potential risk factors for problem gambling. In 1998, a total of 13,549 students in grades 7, 9, 10 and 12 in the public school systems of the four Atlantic provinces completed a self-reported anonymous questionnaire that included the South Oaks Gambling Screen-Revised for Adolescents. About 8.2% and 6.4% of adolescent students met the broad definition of at-risk and problem gambling, respectively. About 3.8% and 2.2% of adolescent students met the narrow definition of at-risk and problem gambling, respectively. The prevalence of problem gambling did not vary according to age. Using a fake identification or lying about one's age was found to be an independent risk factor for problem gambling. Playing video gambling machines was the gambling activity associated with the single greatest independent risk of using a fake identification or lying about one's age. It was concluded that deception about legal age status may be a facilitating factor permitting adolescents to gamble to the point of experiencing problems.

Journal Article↗
PubMed2003

Can some gay men and lesbians change their sexual orientation? 200 participants reporting a change from homosexual to heterosexual orientation.

Position statements of the major mental health organizations in the United States state that there is no scientific evidence that a homosexual sexual orientation can be changed by psychotherapy, often referred to as "reparative therapy." This study tested the hypothesis that some individuals whose sexual orientation is predominantly homosexual can, with some form of reparative therapy, become predominantly heterosexual. The participants were 200 self-selected individuals (143 males, 57 females) who reported at least some minimal change from homosexual to heterosexual orientation that lasted at least 5 years. They were interviewed by telephone, using a structured interview that assessed same sex attraction, fantasy, yearning, and overt homosexual behavior. On all measures, the year prior to the therapy was compared to the year before the interview. The majority of participants gave reports of change from a predominantly or exclusively homosexual orientation before therapy to a predominantly or exclusively heterosexual orientation in the past year. Reports of complete change were uncommon. Female participants reported significantly more change than did male participants. Either some gay men and lesbians, following reparative therapy, actually change their predominantly homosexual orientation to a predominantly heterosexual orientation or some gay men and women construct elaborate self-deceptive narratives (or even lie) in which they claim to have changed their sexual orientation, or both. For many reasons, it is concluded that the participants' self-reports were, by-and-large, credible and that few elaborated self-deceptive narratives or lied. Thus, there is evidence that change in sexual orientation following some form of reparative therapy does occur in some gay men and lesbians.

Adaptation, Psychological↗
PubMed1986

Shape constancy and polar perspective.

The distortion of polar perspective depends on the depth of the tridimensional shape and on the observation distance. In four experiments using 54 undergraduates as subjects, we found that a compensation process which takes depth and observation distance into account corrects for such distortions. Compensation was demonstrated in experiments in which deceptive information on depth and on observation distance was provided. The result was distortions of the perceived shapes that would be expected if compensation were based on the deceptive information.

Cues↗
PubMed2000

Three-year-olds' difficulty with the appearance--reality distinction: is it real or is it apparent?

Four experiments investigated 3-year-olds' understanding of the appearance-reality distinction using both J. Flavell, F. Green, and J. Flavell's (1986) typical verbal response paradigm and a new, nonverbal response paradigm. Both paradigms require verbal questioning, but the former involves a verbal response and the latter a nonverbal one. In the nonverbal paradigm, children were shown a deceptive object and asked to respond, nonverbally, to 2 different functional requests, 1 concerning the object's apparent property and 1 its real property. In the verbal paradigm, children were asked to state what the object looked like and what it really was. In the verbal paradigm, children were about 30% correct (a rate matching that in the literature), whereas over 90% of the same children were correct in the nonverbal paradigm. Participating in the verbal paradigm first had a detrimental effect on the children's performance in the nonverbal paradigm, but the reverse order had no effect. These results suggest that 3-year-olds can represent two conflicting properties of a deceptive object and thus understand the appearance-reality distinction in the nonverbal domain.

Child Development↗
PubMed1998

Socially desirable response tendency as a correlate of accuracy of self-reported HIV serostatus for HIV seropositive injection drug users.

AIMS: This study examined the accuracy of self-reported HIV serostatus for injection drug users and the predictive validity of a measure of social desirability to detect inaccurate self-reports. DESIGN: Participants in the ALIVE study were provided testing for HIV antibodies and counseling every 6 months. In the separate SAFE study, the same volunteers were asked their HIV serostatus. PARTICIPANTS: The 348 active injection drug users recruited from the ALIVE study, a longitudinal study of the natural history of HIV among injection drug users, volunteered for an HIV prevention study (SAFE study). MEASUREMENTS: The ALIVE baseline interview included a scale to measure "self-deception", a dimension of socially desirable responding. FINDINGS: Of one hundred and four HIV seropositive participants, 71 (68%) accurately reported their HIV status, 28 (27%) inaccurately reported their HIV serostatus, and five (5%) reported that they did not know or were not sure about their HIV serostatus. Of 242 HIV seronegative participants, 239 (98%) correctly reported their serostatus. Thus the sensitivity of self-report was 72%, specificity 99%, positive predictive value 97%, and the negative predictive value was 90%. For individuals who scored at or below the median on self-deception, the sensitivity of self-reported HIV serostatus was 81%. CONCLUSIONS: The results suggest that high scores on some measures of social desirability may indicate questionable validity of self-reported HIV serostatus.

Female↗
PubMed1979

Treating the marital crisis with the two-marriage equation.

The technique the authors call"two-marriage therapy" (conjoint cotherapy by a married cotherapy team) has been developed to help the couple in a marital crisis confront the elusive nature of marriage, a being with self-images and unconscious deceptions, different from, but not separate from, the images and unconscious deceptions of the separate spouses. The key to the two-marriage analysis os discovering the limitations of cooperative relationships based on roles and expectations and the exploration of a mode of concern we term "coliberation". This paper attempts to show how the presence of a married cotherapy team facilitates this process and adds a significant salutary perspective on the marriage in conflict.

Adult↗
PubMed2005

Emerging neurotechnologies for lie-detection: promises and perils.

Detection of deception and confirmation of truth telling with conventional polygraphy raised a host of technical and ethical issues. Recently, newer methods of recording electromagnetic signals from the brain show promise in permitting the detection of deception or truth telling. Some are even being promoted as more accurate than conventional polygraphy. While the new technologies raise issues of personal privacy, acceptable forensic application, and other social issues, the focus of this paper is the technical limitations of the developing technology. Those limitations include the measurement validity of the new technologies, which remains largely unknown. Another set of questions pertains to the psychological paradigms used to model or constrain the target behavior. Finally, there is little standardization in the field, and the vulnerability of the techniques to countermeasures is unknown. Premature application of these technologies outside of research settings should be resisted, and the social conversation about the appropriate parameters of its civil, forensic, and security use should begin.

Brain Mapping↗