Racism in psychiatry: paradigm lost-paradigm regained

Racism and psychiatry have been 'linked' in the public imagination, largely because psychiatry is seen as an instrument of social control, and racism as a different form of oppression which permeates society at large. Racism in psychiatry is often believed to be the mediating factor in cases of 'psychiatric misdiagnosis' and 'mismanagement'. Misdiagnosis includes underdiagnosis and overdiagnosis; this can account for the non-delivery of appropriate treatments because of an erroneous diagnostic label. In some instances this leads to a deferred intervention, or in some ethnic groups, help-seeking is delayed for unnecessarily long periods. Racism is not a recent phenomenon.The blunt application of the word 'racism' perpetuates conceptual confusion about what is meant by the term, what processes are taking place, how much of the processes are institutionalized or individual and to what degree individuals are aware of the impact of their actions.We propose a way of understanding racism in psychiatric practice, and suggest that within such a framework, the therapist/professional and the patient can work together towards improving patient care.     

Inevitable suicide: a new paradigm in psychiatry

The author suggests that a new paradigm may be needed which holds that some suicides may be inevitable. The goal of this paradigm would be to diminish the sense of failure and inadequacy felt by many psychiatrists who experience the suicide of a patient and to increase understanding of the unique biopsychosocial profile of those whose suicides appear to be inevitable. The author stresses that this proposed paradigm should not be misconstrued as therapeutic nihilism but rather should serve to stimulate efforts to treat this patient population more effectively. Risk factors that place individuals at high risk for suicide are reviewed, including presence of a mental illness, genetic predisposition, and factors such as a history of abuse, divorce, unemployment, male gender, recent discharge from a psychiatric hospital, prior suicide attempts, alcohol or other substance abuse, a history of panic attacks, and persistent suicidal thoughts, especially if coupled with a plan. The author notes that, in those suicides that appear to have been inevitable, risk factors are not only numerous but at the extreme end of profound pathology. The example of Ernest Hemingway is used to illustrate how such a combination of risk factors may have contributed to his eventual suicide. Psychiatrists, like other doctors, may have to acknowledge that some psychiatric disorders are associated with a high mortality rate as a natural outcome. This could lead to heightened vigilance, a more realistic view of what can and cannot be achieved with therapy, and efforts to improve the quality of life of patients at high risk for suicide with the goal of reducing this risk and prolonging their lives. (Journal of Psychiatric Practice 2012;18:221-224).     

双眼竞争研究范式在精神科的应用

双眼竞争是客观恒定的物理刺激与主观不断交替的知觉体验相分离的一种视觉生理现象。国外已有研究者将双眼竞争范式应用于精神疾病研究,国内这方面研究尚处于起步阶段。双眼竞争的测量指标可以客观反映受试者意识状态并可作为精神障碍患者特殊视觉信息识别功能的主要研究手段,这对于研究精神疾病相关症状的发生具有启示意义。     

The biopsychosocial paradigm and the future of psychiatry

Although hazardous, prediction is necessary for sensible programing for the future of psychiatry. Because of the multitude of variables essential for comprehending normal and abnormal behavior, a complex, all-encompassing model takes on increasing importance. Dualism and reductionism have had a chilling effect on progress in developing psychiatric models. The biopsychosocial model as elaborated by Dr. George Engel would appear to be a major step in moving toward an adequate workable model. Dr. Engel rejects the biomedical or Newtonian model in favor of the biopsychosocial model, basing his conception in part on developments in the past century, particularly the contributions of Einstein, Heisenberg, and Planck. The implications and relevance of these advances, including the work of Niels Bohr, are presented. Other ideas such as Chaos Theory and the work of Roger Penrose are also discussed, together with the new thinking that arises from them. This work reinforces notions of holism, leading to a more humanitarian psychiatry and medicine.     

The rebirth of PTSD: the rise of a new paradigm in psychiatry

Abstract. The new conception of psychological trauma that arose in the 1980s with the definition of PTSD in the DSM-III was a major change compared to the previous traumatic neurosis. While the clinical features were in some way similar, the political and sociological meanings of trauma were absolutely different. At that time, the invention of PTSD was much more the consequence of a broad mutation in mentality that introduced a new moral perspective in trauma studies than of a scientific discovery. In this paper, the author underlines from an anthropological point of view the second turning point that occurred in trauma studies in the mid 1990s when large epidemiological surveys did not confirm the first hypothesis. Readdressing the issues of vulnerability and risk factors that the previous version of PTSD had withdrawn, this second conception raises new epistemological questions that stay unsolved.     

Dynamic paradigm in psychopathology: "chaos theory", from physics to psychiatry

For the last thirty years, progress in the field of physics, known as "Chaos theory"--or more precisely: non-linear dynamical systems theory--has increased our understanding of complex systems dynamics. This framework's formalism is general enough to be applied in other domains, such as biology or psychology, where complex systems are the rule rather than the exception. Our goal is to show here that this framework can become a valuable tool in scientific fields such as neuroscience and psychiatry where objects possess natural time dependency (i.e. dynamical properties) and non-linear characteristics. The application of non-linear dynamics concepts on these topics is more precise than a loose metaphor and can throw a new light on mental functioning and dysfunctioning. A class of neural networks (recurrent neural networks) constitutes an example of the implementation of the dynamical system concept and provides models of cognitive processes (15). The state of activity of the network is represented in its state space and the time evolution of this state is a trajectory in this space. After a period of time those networks settle on an equilibrium (a kind of attractor). The strength of connections between neurons define the number and relations between those attractors. The attractors of the network are usually interpreted as "mental representations". When an initial condition is imposed to the network, the evolution towards an attractor is considered as a model of information processing (27). This information processing is not defined in a symbolic manner but is a result of the interaction between distributed elements. Several properties of dynamical models can be used to define a way where the symbolic properties emerge from physical and dynamical properties (28) and thus they can be candidates for the definition of the emergence of mental properties on the basis of neuronal dynamics (42). Nevertheless, mental properties can also be considered as the result of an underlying dynamics without explicit mention of the neuronal one (47). In that case, dynamical tools can be used to elucidate the Freudian psychodynamics (34, 35). Recurrent neuronal networks have been used to propose interpretation of several mental dysfunctions (12). For example in the case of schizophrenia, it has been proposed that troubles in the cortical pruning during development (13) may cause a decrease in neural network storage ability and lead to the creation of spurious attractors. Those attractors do not correspond to stored memories and attract a large amount of initial conditions: they were thus associated to reality distorsion observed in schizophrenia (14). Nevertheless, the behavior of these models are too simple to be directly compared with real physiological data. In fact, equilibrium attractors are hardly met in biological dynamics. More complex behaviors (such as oscillations or chaos) should thus to be taken into account. The study of chaotic behavior have lead to the development of numerical methods devoted to the analysis of complex time series (17). These methods may be used to characterise the dynamical processes at the time-scales of both the cerebral dynamics and the clinical symptoms variations. The application of these methods to physiological signals have shown that complex behaviors are related to healthy states whereas simple dynamics are related to pathology (8). These studies have thus confirmed the notion of "dynamical disease" (20, 21) which denotes pathological conditions characterised by changes in physiological rhythms. Depression has been studied within this framework (25, 32) in order to define possible changes in brain electrical rhythms related to this trouble and its evolution. It has been shown that controls' brain dynamics is more complex than depressive one and that the recovery of a complex brain activity depends on the number of previous episodes. In the case of the symptoms time evolution, several studies have demonstrated that non-linear dynamical process may be involved in the recurrence of symptoms in troubles such as manic-depressive illness (9) or schizophrenia (51). These observations can contribute to more parcimonious interpretation of the time course of these illnesses than usual theories. In the search of a relationship between brain dynamics and mental troubles, it has been shown in three depressed patients an important correlation between the characteristics of brain dynamics and the intensity of depressive mood (49). This preliminary observation is in accordance with the emergence hypothesis according which changes in neuronal dynamics should be related to changes in mental processes. We reviewed here some theoretical and experimental results related to the use of "physical" dynamical theory in the field of psychopathology. It has been argued that these applications go beyond metaphor and that they are empirically founded. Nevertheless, these studies only constitute first steps on the way of a cautious development and definition of a "dynamical paradigm" in psychopathology. The introduction of concepts from dynamics such as complexity and dynamical changes (i.e. bifurcations) permits a new perspective on function and dysfunction of the mind/brain and the time evolution of symptoms. Moreover, it offers a ground for the hypothesis of the emergence of mental properties on the basis of neuronal dynamics (42). Since this theory can help to throw light on classical problems in psychopathology, we consider that a precise examination of both its theoretical and empirical consequences is requested to define its validity on this topic.     

Preventive psychiatry: a paradigm to improve population mental health and well-being

The government's Public Health White Paper for England sets out a utopian vision of how to prevent and remedy mental health problems. The public health approach relies on primary prevention, promoting individual responsibilities and resilience, while also sustaining existing services and tackling inequalities. These ambitions are consistent with the preventive psychiatric paradigm, and with the best of evidence-based psychiatric practice. Although the evidence on cost-effectiveness of public mental health interventions is growing, the challenge is to ensure that specialist knowledge informs policy, practice and research so that inequalities are not compounded. Specialist mental health professionals are needed to inform and lead public health reforms.     

Racism as a response to change. The introduction of residents onto a psychiatry ward.

An outbreak of violence among inpatients coincident with the beginning of a residency training program is described. The phenomenon is viewed as an example of covert staff disagreement resulting in the scapegoating of black patients. Suggestions are made as to how to avoid the occurrence of similar phenomena through a process of re-education of ward staff.     

Towards a familiar-sounding paradigm and an example of a model for psychiatry. A conceptual addition to the profile outline of psychiatry

The profile of the psychiatrist is being affected by all kinds of developments that are occurring in psychiatry and in many other fields and disciplines. The latest profile depicts the psychiatrist primarily as a medical specialist. The biopsychosocial model has been discarded following a round of brief and confusing criticism and the focus is now on intentional brain functions. However, the latter is not completely in focus and the interpretation is ambiguous. On closer consideration we find it impossible to continue supporting the biopsychosocial model. Nevertheless, it can still serve us well as a broad-basedfamiliar-sounding paradigm. We describe a model that fits into this paradigm.