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Feigning

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https://www.readbyqxmd.com/read/28732029/the-tonic-immobility-test-do-wild-and-captive-golden-mantella-frogs-mantella-aurantiaca-have-the-same-response
#1
Luiza Figueiredo Passos, Gerardo Garcia, Robert John Young
Adaptations to captivity that reduce fitness are one of many reasons, which explain the low success rate of reintroductions. One way of testing this hypothesis is to compare an important behavioural response in captive and wild members of the same species. Thanatosis, is an anti-predator strategy that reduces the risk of death from predation, which is a common behavioral response in frogs. The study subjects for this investigation were captive and wild populations of Mantella aurantiaca. Thanatosis reaction was measured using the Tonic Immobility (TI) test, a method that consists of placing a frog on its back, restraining it in this position for a short period of time and then releasing it and measuring how much time was spent feigning death...
2017: PloS One
https://www.readbyqxmd.com/read/28696772/enhanced-detection-of-feigned-cognitive-impairment-using-per-item-response-time-measurements-in-the-word-memory-test
#2
T Lupu, T Elbaum, M Wagner, Y Braw
Response time (RT) is a less obvious outcome measure than conventional accuracy measures used in performance validity tests (PVTs). It is also under less conscious control and is affected by cognitive processes associated with deception. Studies that assessed the utility of RT for the detection of feigned cognitive impairment are however numbered. Moreover, RT variability was not assessed in a clinically used PVT. In the current study, we assessed the utility of RT measures for the detection of feigned cognitive impairment in the Word Memory Test (WMT)...
July 11, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28613018/a-pilot-study-on-the-chinese-minnesota-multiphasic-personality-inventory-2-in-detecting-feigned-mental-disorders-simulators-classified-by-using-the-structured-interview-of-reported-symptoms
#3
Yi-Ting Chang, Wai-Cheong C Tam, Yung-Jong Shiah, Shih-Kuang Chiang
The Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is often used in forensic psychological/psychiatric assessment. This was a pilot study on the utility of the Chinese MMPI-2 in detecting feigned mental disorders. The sample consisted of 194 university students who were either simulators (informed or uninformed) or controls. All the participants were administered the Chinese MMPI-2 and the Structured Interview of Reported Symptoms-2 (SIRS-2). The results of the SIRS-2 were utilized to classify the participants into the feigning or control groups...
June 14, 2017: PsyCh Journal
https://www.readbyqxmd.com/read/28585883/dissimulation-strategies-on-standard-neuropsychological-tests-a-qualitative-investigation
#4
Stephanie M Jones
OBJECTIVE: Most previous studies in the area of malingering neuropsychological deficits have focused on the development and validation of measures to detect falsification of symptoms or suboptimal performance. The present study employs qualitative methods to investigate strategies employed by individuals attempting to feign cognitive impairment. This study aims to achieve a richer and more detailed understanding of the phenomenon of feigning. METHOD: Detailed semi-structured interviews were administered to 15 non-neurological individuals instructed to feign cognitive impairment on a standard neuropsychological test battery...
2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28578365/self-inflicted-eye-injury
#5
Mohammed A Gogandy, Abdulqader Aljarad, Sabah S Jastaneiah, Abdullah M Alfawaz
Individuals with a factitious ocular disorder feign or exaggerate having an eye injury or intentionally produce an eye injury so as to assume the role of a sick person. We report two cases of self-inflicted ocular injury using needle-like foreign bodies and razor that represent possible diagnoses of Munchausen syndrome. Both patients presented with different clinical pictures that misguided the clinical diagnosis and delayed proper management. Although self-inflicted ocular injuries are rare, ophthalmologists should be aware of the possibility of their existence, particularly when caring for patients with psychiatric conditions...
May 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28573061/pseudologia-fantastica-in-the-emergency-department-a-case-report-and-review-of-the-literature
#6
Robyn Thom, Polina Teslyar, Rohn Friedman
Psychiatrists commonly encounter deception in the emergency department. This article presents the case of a patient who presents to the emergency department with an unusual and elaborate web of deceptions along multiple themes including feigning medical illness, multiple losses, and grandiose academic and athletic achievements. We review the clinical characteristics of pseudologia fantastica and discuss how this patient's constellation of malingering, factitious disorder, and personality disorder suggests this diagnosis...
2017: Case Reports in Psychiatry
https://www.readbyqxmd.com/read/28529233/the-medicinal-rod-slave-health-and-redhibition-law-in-george-washington-cable-s-i-the-grandissimes-i
#7
Heather Chacón
The economic transactions and litigation necessary for slavery to function, coupled with the South's honor culture, meant skepticism and posturing frequently attended the buying and selling of enslaved people. This atmosphere provided opportunities for enslaved individuals familiar with the symbiotic ways their health and value intertwined to manipulate owners by feigning illness or adopting behaviors contrary to those of a "sound and sane" captive under Louisiana's redhibitory (slave warranty) law. Such actions offered a chance at preserving that which slavery denied its victims: proximity to family, a reduced chance of being sold, and an opportunity to exert agency within a strictly oppressive system...
2017: Literature and Medicine
https://www.readbyqxmd.com/read/28471555/-conversion-disorder-functional-neuroimaging-and-neurobiological-mechanisms
#8
J Lejeune, C Piette, E Salmon, G Scantamburlo
Conversion disorder is a psychiatric disorder often encountered in neurology services. This condition without organic lesions was and still is sometimes referred as an imaginary illness or feigning. However, the absence of organic lesions does not exclude the possibility of cerebral dysfunction. The etiologic mechanisms underlying this disorder remain uncertain even today.The advent of cognitive and functional imaging opens up a field of exploration for psychiatry in understanding the neurobiological mechanisms underlying mental disorders and especially the conversion disorder...
April 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28451707/-factitious-disorders
#9
H-P Kapfhammer
Patients with factitious disorders intentionally fabricate, exaggerate or feign physical and/or psychiatric symptoms for various open and covert psychological reasons. There are many issues regarding the diagnostic state and classification of factitious disorders. Both the categorical differentiation of and clinical continuum ranging from somatoform/dissociative disorders to malingering are being controversially debated. Epidemiological studies on the frequency of factitious disorder meet basic methodological difficulties...
April 27, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28352494/the-wandering-woman-a-case-study-of-catatonia-vs-factitious-disorder
#10
Jennifer Wh Wong, Steven R Williams
A 61-year-old woman with an unknown psychiatric history presented with mutism, stupor, negativism, and withdrawn behavior. She was admitted to the psychiatric unit for what appeared to be catatonia. Medical records were not readily available. A comprehensive evaluation did not uncover any medical etiology. Lorazepam was ineffective at consistently reversing her catatonic symptoms. During week three of hospitalization, she was given olanzapine with subsequent improvement in her negativism. Several physicians believed her catatonic symptoms were feigned given multiple episodes of spontaneous purposeful movement when she was not under the direct supervision of staff...
March 2017: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/28331860/quetiapine-misuse-and-abuse-is-it-an-atypical-paradigm-of-drug-seeking-behavior
#11
REVIEW
Sean Kim, Gayoung Lee, Eric Kim, Hyejin Jung, Jongwha Chang
Recent case reports in medical literatures suggest that more and more second-generation atypical antipsychotics (AAs) have been prescribed for off-label use; quetiapine (Brand name: Seroquel(®)) showed increase in its trend for off-label use. Little is known about the reasons behind this trend, although historical sedative and hypnotic prescription patterns suggest that despite relatively superior safety profiles of quetiapine (especially for movement disorders), it may be used for treating substance abuse disorder...
January 2017: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/28325433/reliability-of-the-grip-strength-coefficient-of-variation-for-detecting-sincerity-in-normal-and-blocked-median-nerve-in-healthy-adults
#12
N J Wachter, M Mentzel, R Hütz, J Gülke
In the assessment of hand and upper limb function, detecting sincerity of effort (SOE) for grip strength is of major importance to identifying feigned loss of strength. Measuring maximal grip strength with a dynamometer is very common, often combined with calculating the coefficient of variation (CV), a measure of the variation over the three grip strength trials. Little data is available about the relevance of these measurements in patients with median nerve impairment due to the heterogeneity of patient groups...
April 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28276597/an-international-perspective-on-feigned-mental-disabilities-conceptual-issues-and-continuing-controversies
#13
Thomas Merten, Richard Rogers
In forensic contexts, an increased prevalence of feigned symptom presentations should be expected, although it will probably vary by the context and specific forensic issue. Forensic experts should examine this possibility proactively while maintaining a balanced perspective that actively considers clinical data for both feigning and genuine responding. Psychological measures and standardized methods developed for feigning and other response styles can facilitate these often complex determinations. The current article provides an international perspective on the issue of feigned mental disabilities...
March 2017: Behavioral Sciences & the Law
https://www.readbyqxmd.com/read/28252976/trial-1-versus-trial-2-of-the-test-of-memory-malingering-evaluating-accuracy-without-a-gold-standard
#14
Douglas Mossman, Dustin B Wygant, Roger O Gervais, Kathleen J Hart
This study examines the accuracy of the Test of Memory Malingering (TOMM), a frequently administered measure for evaluating effort during neurocognitive testing. In the last few years, several authors have suggested that the initial recognition trial of the TOMM (Trial 1) might be a more useful index for detecting feigned or exaggerated impairment than Trial 2, which is the source for inference recommended by the original instruction manual (Tombaugh, 1996). We used latent class modeling (LCM) implemented in a Bayesian framework to evaluate archival Trial 1 and Trial 2 data collected from 1,198 adults who had undergone outpatient forensic evaluations...
March 2, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28156190/the-visual-association-test-extended-a-cross-sectional-study-of-the-performance-validity-measures
#15
Sascha R A Meyer, Jos F M de Jonghe, Ben Schmand, Rudolf W H M Ponds
OBJECTIVE: Given the hazards of knowledge about performance validity tests (PVTs) being proliferated among the general public, there is a continuous need to develop new PVTs. The purpose of these studies was to validate the newly developed Visual Association Test-Extended (VAT-E). METHOD: The VAT-E consists of 24 pairs of line drawings; it is partly based on Green's Word Memory Test (WMT) paradigm. In study 1, we compared VAT-E total scores of healthy controls (n = 226), patients with mild cognitive impairment (MCI) (n = 76), patients with Alzheimer's disease (AD) (n = 26), and persons instructed to feign memory deficit (n = 29)...
May 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28140781/standard-and-short-rom-isokinetic-testing-comparative-analysis-in-identifying-submaximal-shoulder-external-rotator-effort
#16
Eduard Pujol, Joaquim Chaler, Laura Sucarrats, Inés López, Blanca Zeballos, Roser Garreta, Zeevi Dvir
An isokinetic-related parameter termed the difference between eccentric-concentric strength ratios at two distinct test velocities (DEC) based on 60° (standard) range of motion (RoM) has been proven to be highly efficient detecting feigned muscular efforts. This study aimed to verify whether a DEC derived from a much shorter test RoM (20°) was equally useful than a long RoM-derived one. Eighteen healthy men (32.4 ± 6.4 years old) took part in a study focusing on shoulder external rotation isokinetic strength...
January 31, 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/28128974/detecting-symptom-exaggeration-in-college-students-seeking-adhd-treatment-performance-validity-assessment-using-the-nv-msvt-and-iva-plus
#17
Monica Leppma, Daniel Long, Megan Smith, Candace Lassiter
The symptoms of ADHD are highly subjective, and there is ample empirical evidence that demonstrates the ease with which impairments in attention can be feigned on many commonly used subjective and objective measures of attention. We examined the combination of two assessment measures, NV-MSVT and IVA+, to screen for performance validity and ADHD symptoms in college students. Results indicated that the NV-MSVT was effective in differentiating between students with potential high impairment, such as ADHD, and possible malingerers...
January 27, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28080105/cross-cultural-feigning-assessment-a-systematic-review-of-feigning-instruments-used-with-linguistically-ethnically-and-culturally-diverse-samples
#18
Alicia Nijdam-Jones, Barry Rosenfeld
The cross-cultural validity of feigning instruments and cut-scores is a critical concern for forensic mental health clinicians. This systematic review evaluated feigning classification accuracy and effect sizes across instruments and languages by summarizing 45 published peer-reviewed articles and unpublished doctoral dissertations conducted in Europe, Asia, and North America using linguistically, ethnically, and culturally diverse samples. The most common psychiatric symptom measures used with linguistically, ethnically, and culturally diverse samples included the Structured Inventory of Malingered Symptomatology, the Miller Forensic Assessment of Symptoms Test, and the Minnesota Multiphasic Personality Inventory (MMPI)...
January 12, 2017: Psychological Assessment
https://www.readbyqxmd.com/read/28073974/infertile-women-who-screen-positive-for-depression-are-less-likely-to-initiate-fertility-treatments
#19
Natalie M Crawford, Heather S Hoff, Jennifer E Mersereau
STUDY QUESTION: Are infertile women who screen positive for depression less likely to initiate infertility treatments? SUMMARY ANSWER: Infertile women who screen positive for depression are less likely to initiate treatment for infertility. WHAT IS ALREADY KNOWN: Infertility imposes a psychological burden on many couples. Depression and anxiety have been demonstrated in ~40% of infertile women, which is twice that of fertile women. Further, the psychological burden associated with infertility treatment has been cited as a major factor for discontinuation of infertility care...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28032009/assessment-of-feigned-cognitive-impairment-in-severe-traumatic-brain-injury-patients-with-the-forced-choice-graphics-memory-test
#20
Zilong Liu, Juan Dong, Xiaohong Zhao, Xiaorui Chen, Sara M Lippa, Jerome S Caroselli, Xiang Fang
INTRODUCTION: The Forced-choice Graphics Memory Test (FGMT) is a newly developed measure to assess feigned cognitive impairment. This study investigated the ability and reliability of FGMT for identification of malingering in patients with traumatic brain injury (TBI). METHODS: The FGMT was administered to 40 healthy volunteers instructed to respond validly (Healthy Control, H-C), 40 healthy volunteers instructed to feign cognitive impairment (Healthy Malingering, H-M), 40 severe TBI patients who responded validly (TBI control, TBI-C), and 30 severe TBI patients who evidenced invalid performance (TBI malingering, TBI-M)...
December 2016: Brain and Behavior
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