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The Munchausen syndrome in civil forensic psychiatry.

The diagnosis of Munchausen syndrome requires that a patient intentionally produce or feign physical symptoms with a psychological need to assume the sick role. To differentiate the disorder from malingering one must document the absence of an external incentive for the patient's behavior. Although malingering is a major topic of interest in forensic psychiatry, there has been no literature that looks at the Munchausen syndrome presenting in the civil forensic setting. This paper reports on two cases of the Munchausen syndrome that occurred in the areas of medical malpractice and workers' compensation. The cases highlight how the psychiatrist should approach these cases in the civil forensic setting. The malpractice case also illustrates how the disorder is viewed by an appellate court.

Adult↗

Spectrophotometric assays for warfarin sodium and dicumarol. Use in rapid detection of patients suspected of drug intoxication or surreptitious noningestion.

The usefulness of assays for the rapid identification and determination of quantitative plasma levels of warfarin sodium and dicumarol is documented by the case histories of five patients: a man who accidentally took dicumarol for several weeks and developed an acute condition within the abdomen, a man who ingested 500 mg of warfarin sodium in a suicide attempt, a malingering nurse who surreptitiously took dicumarol, a nurse with warfarin intoxication who did not follow dosage prescription because of fear of developing thrombosis, and a woman with calf vein thrombosis who did not ingest the administered warfin sodium becausing of fear of developing bleeding. In every patient, the diagnosis of surreptitious ingestion or noningestion was suspected on the basis of the coagulation profile pattern. Confirmation of the disorder by the spectrophotometric assay enable the clinician to choose the appropriate course of action with speed and purpose.

Accidents, Home↗

The role of a sleep disorder center in evaluating sleep violence.

To review the state-dependent nature of violence and present a clinically useful classification of sleep violence, this article reviews our experience with sleep-related violence, establishing a differential diagnosis, methods of evaluation, and treatment options. The study occurs in a full-service clinical sleep disorders center evaluating approximately 1000 patients annually with an active participation of 16 physicians representing seven specialties. The patients were self-, physician-, or court/social service-referred for evaluation of violent or injurious behaviors associated with the sleep period. Interventions were dependent on the final diagnosis following clinical and (usually) sleep laboratory evaluation. The main outcome measures were self-reported. During routine clinical evaluations at a multidisciplinary sleep disorder center, it has become apparent that violence is often state-dependent, occurring only during the sleep period, resulting from a number of both neurologic and psychiatric conditions (including malingering and Munchausen syndrome by proxy). In such cases, careful clinical and laboratory evaluation usually results in a specific diagnosis, with effective therapeutic recommendations. Violence may be state-dependent. It is clear that violent behaviors may arise from the sleep period, often without conscious awareness on the part of the subject. This has social, forensic, and clinical implications, and may help contribute to the understanding of violence in general.

Health Facilities↗

Diagnosing functional visual deficits with the P300 component of the visual evoked potential.

The visual evoked potential (VEP) is routinely used to assess visual function, though it occasionally does not reflect a patient's conscious experience. Reports of normal flash or pattern VEPs obtained from blind persons are extreme examples of this problem. The difficulty in interpreting VEPs in light of such findings can be partly overcome by obtaining a cognitive component of the evoked potential, P300. We obtained traditional visual acuity measurements, pattern-reversal VEPs, and VEPs containing P300s from three patients with clinically diagnosed functional visual deficits. The P300s were obtained in response to stimuli that the patients claimed they could not see, supporting the clinical conclusions that malingering or hysteria was involved. The P300 component can be helpful in assessing the subjective visual experience of patients suspected of having functional visual loss.

Clinical Trials as Topic↗

MMPI-2 base rates for 492 personal injury plaintiffs: implications and challenges for forensic assessment.

This study reports base rates of MMPI-2 clinical scales. PTSD scales, and validity scales for 492 personal injury plaintiffs, 230 men and 262 women. Scales studied included L, F, K, F minus K, Ds-r, Fake Bad, Ego Strength, Back F. Total Obvious minus Subtle, VRIN, and TRIN. Forensic high points resembled outpatient profiles but not the MMPI-2 psychiatric sample and shared only code type 13/31 with the normative sample. The most common two-point code type for men was 13/31, followed by 12/21 and 23/32, and for women was 13/31, followed by 23/32 and 12/21. Fifty percent of the forensic sample were code type 13/31, 12/21, or 23/32. Validity measures suggested possible malingering on approximately 20 to 30% of the profiles but the majority of profiles were valid. Validity problems discussed include attorney coaching and the congruence of plaintiff personality characteristics with the demand characteristics of litigation. Examples of attorney coaching are provided. The modal plaintiff appears to be an unhappy somatizer involved in a social context which encourages rationalization, projection of blame, and complaining.

Adolescent↗

Detection of faking on the Halstead-Reitan neuropsychological test battery.

Administered the Halstead-Reitan neuropsychological test battery to a heterogeneous sample of 52 brain-impaired patients and 202 non-impaired college and community volunteers. The volunteers were assigned randomly to either the control group or to one of four faking groups, which differed only in terms of type of brain damage Ss were to fake. The Right and Left groups were told to fake unilateral damage to only one hemisphere, the Diffuse group was told to fake damage to both hemispheres, and the Nonspecific group simply was told to fake brain damage. The author achieved a hit rate of 94.4% on subjective classification of a subsample of 195 Ss into brain-impaired vs. non-impaired categories. Stepwise discriminant analysis of the entire sample yielded two functions that achieved hit rates of from 94.9% to 97.2% for various base rates of malingering. Discrimination between control and faking Ss was much less accurate, and the latter were highly unsuccessful at generating believable patterns of lateralized cortical impairment. Posttest interviews were conducted to obtain information concerning faking strategy as well as factors that inhibited or facilitated the efforts to fake.

Adult↗

Normative tables for the F-K index of the MMPI based on a contemporary normal sample.

Recent work with the F-K index of the MMPI has reaffirmed its usefulness for identifying dissimulation. However, the potential usefulness of any index of malingering is dependent on its frequency of occurrence in the normal population. This article presents normative tables for the F-K index based on a contemporary normative sample of 335 normal women and 304 normal men.

Adult↗

Performance of psychiatric inpatients and intellectually deficient individuals on a task that assesses the validity of memory complaints.

A brief psychological screening test, devised by Rey (1964), was developed to assess the validity of memory complaints. Although Rey hypothesized that malingerers would be mislead to perform poorly while even individuals with severe concentration problems could succeed, a review of the literature did not reveal any empirical reports that examined the actual performance of nonmalingering though disturbed patients. Therefore, Rey's test was administered to samples of acutely disturbed psychiatric patients (N = 50) and intellectually deficient individuals (N = 16). The results confirmed the criterion proposed by Lezak (1983) and suggested that malingering should be considered among individuals who deny remembering at least 9 of the 15 times of the Rey test.

Adolescent↗

Faking specific disorders: a study of the Structured Interview of Reported Symptoms (SIRS).

An untested assumption of malingering research is that persons who feign mental illness will not attempt to fake a particular disorder, but will be content to fabricate non-specific and possibly global psychiatric impairment. We tested the effectiveness of the Structured Interview of Reported Symptoms (SIRS) to detect feigning of three diagnostic groupings: schizophrenia, mood disorders, and PTSD on 45 psychologically knowledgeable correctional residents. We found that the SIRS maintained its powers of discrimination with respect to clinical samples. Similar research on faking specific disorders is needed on the MMPI-2 and other psychological measures.

Adult↗

Efficacy of MMPI-2 validity scales and MCMI-II modifier scales for detecting spurious PTSD claims: F, F-K, Fake Bad Scale, ego strength, subtle-obvious subscales, DIS, and DEB.

This study compared 119 personal injury claimants' scores on MMPI-2 and MCMI-II malingering scales. Data from 55 pseudo-PTSD patients and 64 controls confirm the utility of the scales examined. The following cut-offs were most effective for identifying spurious PTSD: F greater than 62, F-K = greater than -4, Es = greater than 30, FBS = greater than 24 (men), FBS = greater than 26 (women), total obvious minus subtle = greater than 90, DIS = greater than 60, and DEB = greater than 60. Pseudo-PTSD patients were those who (1) claimed to be suffering a psychological injury (2) that was so severe that it was disabling (3) due to an experience that was entirely implausible as a candidate for PTSD criterion A in DSM-III-R and (4) scored T = 65 or higher on both PK and PS, the post-traumatic stress disorder subscales of the MMPI-2.

Adult↗

Interrelationship of MMPI-2 validity scales in personal injury claims.

A sample of MMPI-2s of worker's compensation and personal injury cases (N = 289) was gathered to examine the relationship of various indicators of exaggeration. Intercorrelations of the F, F-K, the MMPI Dissimulation Scale-revised (Ds-r), total of obvious minus subtle scales (O-S), Fake Bad Scale (FBS), VRIN, and TRIN were computed and the relative sensitivity of each score calculated using various cut-offs. Factor analysis suggests that malingering may take the form of inconsistent responding as well as symptom exaggeration. Patients evaluated at the request of plaintiff attorneys showed a seemingly greater degree of symptom exaggeration and inconsistent responding than did those referred by defense counsel.

Accidents, Occupational↗

MMPI-2 profiles of worker's compensation claimants who present with complaints of harassment.

This study intended to differentiate among worker's compensation claimants with psychological problems who presented with work-related harassment and non-harassment complaints on the basis of their MMPI-2 profiles. Analysis of MMPI-2 mean scores revealed that the Harassment group scored significantly higher than the Non-harassment group on scale 6 of the MMPI-2. This was interpreted to mean that the Harassment group was more oversensitive, suspicious, and angry than the other group. There was no evidence that the Harassment group was more likely to exaggerate or malinger than the Non-harassment group. The profile pattern for both groups was otherwise very similar to those found in previous studies that have used MMPI worker's compensation claimants who present with psychological problems.

Adult↗

Factitious septic arthritis.

Septic arthritis is an uncommon manifestation of factitious illness. We report 2 patients who developed septic arthritis of the knee after repeated self-administered intraarticular injections. Multiple unusual infective agents were isolated. These cases illustrate malingering and Munchausen syndrome, 2 examples from the spectrum of factitious disease syndromes.

Adult↗

Decrease of visual acuity in patients with clear media and normal fundi. Objective screening methods for differentiation and documentation.

For differentiation of unilateral reduction of visual acuity in patients with clear media and normal fundi, the Swinging Flashlight Test was used. Optic neuropathies as a rule give pathological results. On the other hand refraction scotomas, functional amblyopias and malingering produce a normal outcome of this test in general. For documentation of afferent pupillary defects a photographic method is described. Electronystagmography is advocated as a method for detection of malingerers and neurotics among patients complaining of acute uni- or bilateral visual acuity reduction. Optokinetic nystagmus is recorded using Bangerter's filters in front of the patient's eye. This method allows a certain estimation of the visual acuity.

Electronystagmography↗

[Factitious disease. Observations on 44 cases at a medical clinic and recommendation for a subclassification].

From 1971 to 1985, 44 cases of self-induced factitious disorders were observed in the Medical Department of a University Hospital. The diseases were often severe, one patient even died. The various symptoms and diseases presented by the patients, the methods of producing them, and the diagnostic and therapeutic aspects of these cases are described. Patients were analysed with regard to age, sex, profession, psychosocial adaptation, number and duration of hospitalisations, presentation of complaints, behaviour on the ward, relation to the doctor, self-destructive tendencies, readiness to suffer and possible motivations. According to the criteria of the DSM-III, seven patients were malingerers (DSM-III: V 65.20) and 37 had a "chronic factitious disorder with physical symptoms" (DSM-III: 301.51). However, the findings in the patients of the latter group strongly suggest that they form an extremely heterogeneous population. Therefore we propose a subclassification of the DSM-III category 301.51 as follows: Type A. Muenchausen syndrome in the proper sense; dramatic deception of mainly acute illness; pseudologia fantastica; social maladaptation, chaotic life situations; many, mostly short hospitalisations; many interventions; at first well adapted, later hostile; mostly men. Type B. Self-induced, mainly chronic illness; behaviour adequate, highly compliant; often little emotion, contrasting with the sometimes severe illness; socially adapted; history remarkably blank with regard to psychosocial stress; several often longlasting hospitalisations and many interventions; almost exclusively younger women from (para-)-medical professions. Type C. Willfull interference with the healing of wounds, cutaneous ulcers, abscesses or dermatological artefacts; history with marked personal losses or severe chronic medical problems; at first well adapted, later hostile, passive/aggressive; women prevail. A conversion syndrome (DSM-III: 300.11) was not observed. In contrast to malingering, the basis of the disorder in types A, B and C is unconscious in origin, thus similar to the conversion syndrome. Contrary to the latter, however, the production of physical symptoms is under voluntary control. The proposed subclassification represents a hypothesis for testing which might facilitate the analysis of the basic personality disorder, so far lacking. The investigation of the psychopathology of these patients and their treatment is difficult if not impossible because most refuse psychiatric exploration and therapy. Consequently follow-up studies and data on the prognosis are rare.

Adolescent↗

Testing of concentric visual field constriction by means of scotopic visually evoked potentials.

Using scotopic visually evoked potentials (VEP), an objective test of concentric absolute field defects is presented. At 0.8 log units above the mean VEP threshold, the full field, the central area of 50 degrees diameter, and the complementary peripheral field were flash stimulated. In 13 normal subjects the peripheral VEP response was larger in amplitude and shorter in latency compared to the central response. In four cases of concentric field restriction due to hysteria and malingering, the same results were found. In three cases of retinitis pigmentosa and advanced glaucoma, the peripheral VEP sensitivity was worse than the central one or no response could be found. The amount of stray light was estimated as the difference of the thresholds for central and peripheral stimulation (1.6 to 1.8 log units) in a patient with a residual central field of 20 degrees.

Adolescent↗

[Neuropsychological assessment of suboptimal performance: the Word Memory Test].

Although malingering, suboptimal cognitive performance, and negative response bias represent very problematic confounds in diagnostic work with a number of neurological and some psychiatric illnesses, the evaluation of these tendencies has not yet become common practice in German-speaking countries. Only a limited number of adequately validated instruments are available. The German adaptation of the Word Memory Test (WMT), an internationally renowned test for use in the area of neurocognitive disturbances, is presented. The first study compares performance of a healthy experimental group of malingerers ( n=100) with a healthy control group after standard test instructions ( n=27). The WMT achieved a 100% correct identification of group membership. The second study was carried out with a sample of mentally retarded patients ( n=32) and showed that the WMT was likewise able to identify high performance motivation in almost all of the cases. Only one patient was incorrectly classified. These results are commensurate with the highly sensitive parameters that have been reported for the WMT in North America. With the introduction of the WMT into neuropsychological diagnostic work in Germany, it will become easier to meet quality standards that have become customary internationally.

Adult↗