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The limits of empirical studies on research ethics

Tancredi, Laurence R
The results of empirical research in psychology and psychiatry are increasingly being used to formulate as well as understand problems at the interface of law and psychiatry. There has been a proliferation of studies, such as the determinants of individual competence or threat to self or others, the results of which are influencing policy and legislative decisions as well as buttressing holdings in court cases. In this article, I explore the issues of interpretation of epidemiological studies, particularly the role of ideological positions on the design and results of empirical findings, the importance of the way data are interpreted, and the role of ideologies in the way research findings are presented to provide support for policy positions. Two levels of analysis are involved in determining the validity of a study. The first addresses the questions of whether the study meets the statistical and epidemiological requirements for reliable results. These include considerations such as the appropriateness of the study design and methods for gathering and interpreting data. The second focuses on the underlying framework of the study. This involves factors such as the perspectives and values of those conducting the study, the explicit and implicit dominating ideologies where they operate, and the extent to which the study is constructed to reaffirm specific ideologies. This level of analysis is essential for disclosing the influences of ideologies on the results of studies and the way in which data are interpreted. In this article, I try to demonstrate through critiques of selected studies that the first stage of analysis is insufficient without an examination of underlying preconceived values to establish the meaningfulness of results
PMID: 11660018
ISSN: 1050-8422
CID: 150754

The admissibility of scientific evidence in psychiatric malpractice: junk science and the Daubert case

Tancredi, L R; Giannini, A J
The defence in malpractice cases has traditionally relied upon a commonly accepted body of knowledge. According to the American 'Frye rule', this knowledge could either have been accepted generally or by a 'respectable minority' of physicians. The US Supreme Court, however, has recently ruled in the Daubert case that conclusions not subject to peer review are acceptable in malpractice cases. The authors analyse the implications of the Daubert decision using the case-study method. Two alternative-scenarios of a hypothetical case are analysed. The potential effect of Daubert places the US psychiatrist-defendant in an untenable position. Either use or non-use of non-peer-reviewed studies in clinical practice could produce a finding of negligence. Furthermore, the responsibility to assess scientific acceptability in US courts has shifted from expert witnesses to judges who are usually without scientific training
PMID: 16371283
ISSN: 1353-1131
CID: 150755

DANGEROUS DIAGNOSTICS AND THEIR SOCIAL-CONSEQUENCES [Editorial]

NELKIN, D; TANCREDI, L
Two veteran observers of the science environment-Columbia University's Dorothy Nelkin, a sociologist, and Laurence Tancredi, a psychiatrist and lawyer-express their concerns about genetic research and other advances that increase our ability to predict the incidence of human diseases and conditions: While the virtues of the new diagnostics am abundant, so are the opportunities for these tools to be oversold and abused, with society the victim
ISI:A1994NP87300006
ISSN: 0890-3670
CID: 52444

Current and future applications of SPECT in clinical psychiatry

Volkow, N D; Tancredi, L
Over the past 10 years several studies have been conducted in psychiatric and neurologic patients with single photon emission computed tomography (SPECT) to determine if patterns of brain dysfunction exist that characterize the different mental diseases. Although there has not been any finding that can be referred to as specific for a particular disease, SPECT studies have been able to demonstrate evidence of brain dysfunction in patients who, when tested with other means, showed no evidence of brain abnormalities. In this manuscript, the current and future applications of SPECT in the clinical practice of psychiatry are analyzed
PMID: 1459980
ISSN: 0160-6689
CID: 144608

Advancing the epidemiology of injury and methods of quality control: ACEs as an outcomes-based system for quality improvement

Tancredi LR; Bovbjerg RR
Accelerated-compensation events (ACEs) are classes of avoidable medical injuries. Originally, these classes were used in tort reform to speed payment for avoidable injuries. However, ACEs also have potential as tools to monitor and improve the quality of health care. ACEs are developed by physicians, based on medical decision making. Rather than simply identify an adverse outcome, they link that outcome to clinical processes. Therefore, ACEs can help identify the critical elements of care that would result in desirable outcomes. Also, ACEs are discerning: they identify only events of which the vast majority are preventable. In one project, ACEs have been developed for obstetrics/gynecology, general surgery, and orthopedic surgery, using a three-phase process of sifting data and honing definitions. Future plans include improving these ACEs, statistically evaluating them, and testing them for utility in quality monitoring and improvement
PMID: 1495802
ISSN: 0097-5990
CID: 13584

A theory of the mind/brain dichotomy with special reference to the contribution of positron emission tomography

Tancredi, L R; Volkow, N D
PMID: 1513681
ISSN: 0031-5982
CID: 144612

Creating outcomes-based systems for quality and malpractice reform: methodology of accelerated compensation events (ACEs)

Tancredi, L R; Bovbjerg, R R
Today's unduly erratic and expensive payment system for medical malpractice undercuts its own goal of compensating victims. Its lack of scientific legitimacy hampers its other main goal of deterring injury. Reform is needed, but most 'tort reform' fails to make fundamental changes and does not promote quality of care. Alternative systems using 'Accelerated Compensation Events' (ACEs) offer a better way to replace or improve judicial resolution of liability claims as well as independent, quality-oriented reform. ACEs do not cover all injuries, just classes of adverse outcomes that are normally avoidable, given good care. This article explains the scientific methodology of ACE development and the benefits of ACE-based reforms
PMID: 1588891
ISSN: 0887-378x
CID: 150756

Obstetrics and malpractice. Evidence on the performance of a selective no-fault system

Bovbjerg, R R; Tancredi, L R; Gaylin, D S
Most malpractice litigation in obstetrics could be replaced with an alternative insurance system based on 'accelerated-compensation events,' which are classes of medical injuries determined in advance by medical experts to be readily identifiable, normally preventable with good care, and nondistorting of medical decision making. This professionally derived system would help prevent injury and improve the resolution of injuries. Prior work on accelerated-compensation events was largely conceptual, so to study the likely effects of accelerated-compensation events, we applied the events to a large database of obstetrical malpractice claims. Results refute prior criticisms. Accelerated-compensation events (1) are definitely feasible to develop and apply, (2) would probably cover two thirds of currently paid claims and three quarters of indemnity dollars, (3) would likely involve substantial savings in time and expense per case, and (4) would probably not introduce an unmanageable number of large new claims
PMID: 2033740
ISSN: 0098-7484
CID: 150757

Cerebellar metabolic activation by delta-9-tetrahydro-cannabinol in human brain: a study with positron emission tomography and 18F-2-fluoro-2-deoxyglucose

Volkow, N D; Gillespie, H; Mullani, N; Tancredi, L; Grant, C; Ivanovic, M; Hollister, L
We investigated the effects of acute i.v. administration of 2 mg of delta 9-tetrahydrocannabinol (THC) on regional brain glucose metabolism using 18F-2-fluoro-2-deoxyglucose and positron emission tomography (PET) in eight normal subjects. Subjects were tested twice: during baseline conditions and 30-40 min after THC administration. Changes in global cerebral glucose metabolism in response to THC were variable: three subjects showed an increase, three showed a decrease, and two showed no change. In contrast, all subjects showed an increase in normalized metabolism in the cerebellum following THC administration. Cerebellar changes were the only significant regional metabolic changes due to THC administration. The increase in metabolic activity in the cerebellum was correlated with the subjective sense of THC intoxication and with plasma THC concentration. Cerebellar localization of metabolic effects due to THC administration corresponds well with the high density of cannabinoid receptors known to be in this area
PMID: 1658842
ISSN: 0165-1781
CID: 144617

Biological correlates of mental activity studied with PET

Volkow, N D; Tancredi, L R
The development of newer imaging techniques that allow direct investigation of the function of the human brain under normal and pathological conditions has affected the way in which we conceive of the mind/brain relation. In this report the authors use examples from findings obtained with positron emission tomography (PET) to illustrate the highly interactive organization of the brain. Because operations in the brain require the participation of various brain areas, a model that does not require a one-to-one relationship between the physical and mental, but rather allows an association between clusters of physical processes and one or more mental phenomena, may reflect better the relation between physical brain phenomena and mental activities
PMID: 2006687
ISSN: 0002-953x
CID: 144618