Objective:Cognitive remediation therapy for schizophrenia was developed to treat cognitive problems that affect functioning, but the treatment effects may depend on the type of trial methodology adopted. The present meta-analysis will determine the effects of treatment and whether study method or potential moderators influence the estimates. Method:Electronic databases were searched up to June 2009 using variants of the key words “cognitive,” “training,” “remediation,” “clinical trial,” and “schizophrenia.” Key researchers were contacted to ensure that all studies meeting the criteria were included. This produced 109 reports of 40 studies in which ≥70% of participants had a diagnosis of schizophrenia, all of whom received standard care. There was a comparison group and allocation procedure in these studies. Data were available to calculate effect sizes on cognition and/or functioning. Data were independently extracted by two reviewers with excellent reliability. Methodological moderators were extracted th...

https://ajp.psychiatryonline.org/doi/pdf/10.1176/appi.ajp.2010.10060855

A Meta-Analysis of Cognitive Remediation for Schizophrenia: Methodology and Effect Sizes

Over the last 2 decades, a large number of neurophysiological and neuroimaging studies of patients with schizophrenia have furnished in vivo evidence for dysconnectivity, ie, abnormal functional integration of brain processes. While the evidence for dysconnectivity in schizophrenia is strong, its etiology, pathophysiological mechanisms, and significance for clinical symptoms are unclear. First, dysconnectivity could result from aberrant wiring of connections during development, from aberrant synaptic plasticity, or from both. Second, it is not clear how schizophrenic symptoms can be understood mechanistically as a consequence of dysconnectivity. Third, if dysconnectivity is the primary pathophysiology, and not just an epiphenomenon, then it should provide a mechanistic explanation for known empirical facts about schizophrenia. This article addresses these 3 issues in the framework of the dysconnection hypothesis. This theory postulates that the core pathology in schizophrenia resides in aberrant N-methyl-D-aspartate receptor (NMDAR)-mediated synaptic plasticity due to abnormal regulation of NMDARs by neuromodulatory transmitters like dopamine, serotonin, or acetylcholine. We argue that this neurobiological mechanism can explain failures of self-monitoring, leading to a mechanistic explanation for first-rank symptoms as pathognomonic features of schizophrenia, and may provide a basis for future diagnostic classifications with physiologically defined patient subgroups. Finally, we test the explanatory power of our theory against a list of empirical facts about schizophrenia.

/pdf/dysconnection-in-schizophrenia-from-abnormal-synaptic-305n6j3pxf.pdf

Dysconnection in Schizophrenia: From Abnormal Synaptic Plasticity to Failures of Self-monitoring

Compromised neurocognition is a core feature of schizophrenia. Following Heinrichs and Zakzanis's (1998) seminal meta-analysis of middle-aged and predominantly chronic schizophrenia samples, the aim of this study is to provide a meta-analysis of neurocognitive findings from 47 studies of first-episode (FE) schizophrenia published through October 2007. The meta-analysis uses 43 separate samples of 2,204 FE patients with a mean age of 25.5 and 2,775 largely age- and gender-matched control participants. FE samples demonstrated medium-to-large impairments across 10 neurocognitive domains (mean effect sizes from -0.64 to -1.20). Findings indicate that impairments are reliably and broadly present by the FE, approach or match the degree of deficit shown in well-established illness, and are maximal in immediate verbal memory and processing speed. Larger IQ impairments in the FE compared to the premorbid period, but comparable to later phases of illness suggests deterioration between premorbid and FE phases followed by deficit stability at the group level. Considerable heterogeneity of effect sizes across studies, however, underscores variability in manifestations of the illness and a need for improved reporting of sample characteristics to support moderator variable analyses.

/pdf/neurocognition-in-first-episode-schizophrenia-a-meta-45744v5nt6.pdf

Neurocognition in First-Episode Schizophrenia: A Meta-Analytic Review

Treatments have been developed and tested to successfully reduce the symptoms and disabilities of many mental illnesses. Unfortunately, people distressed by these illnesses often do not seek out services or choose to fully engage in them. One factor that impedes care seeking and undermines the service system is mental illness stigma. In this article, we review the complex elements of stigma in order to understand its impact on participating in care. We then summarize public policy considerations in seeking to tackle stigma in order to improve treatment engagement. Stigma is a complex construct that includes public, self, and structural components. It directly affects people with mental illness, as well as their support system, provider network, and community resources. The effects of stigma are moderated by knowledge of mental illness and cultural relevance. Understanding stigma is central to reducing its negative impact on care seeking and treatment engagement. Separate strategies have evolved for counteracting the effects of public, self, and structural stigma. Programs for mental health providers may be especially fruitful for promoting care engagement. Mental health literacy, cultural competence, and family engagement campaigns also mitigate stigma's adverse impact on care seeking. Policy change is essential to overcome the structural stigma that undermines government agendas meant to promote mental health care. Implications for expanding the research program on the connection between stigma and care seeking are discussed.

The Impact of Mental Illness Stigma on Seeking and Participating in Mental Health Care

Objective: The consumer movement is advocating that rehabilitation services become recovery-orientated. The objectives of this study are to gain a better understanding of the concept of recovery by: (i) identifying a definition of recovery that reflects consumer accounts; and (ii) developing a conceptual model of recovery to guide research, training and inform clinical practice. Method: A review was conducted of published experiential accounts of recovery by people with schizophrenia or other serious mental illness, consumer articles on the concept of recovery, and qualitative research and theoretical literature on recovery. Meanings of recovery used by consumers were sought to identify a definition of recovery. Common themes identified in this literature were used to construct a conceptual model reflecting the personal experiences of consumers. Results: The definition of recovery used by consumers was identified as psychological recovery from the consequences of the illness. Four key processes of recovery were identified: (i) finding hope; (ii) re-establishment of identity; (iii) finding meaning in life; and (iv) taking responsibility for recovery. Five stages were identified: (i) moratorium; (ii) awareness; (iii) preparation; (iv) rebuilding; and (v) growth. Conclusion: A five-stage model compatible with psychological recovery is proposed, which offers a way forward for attaining recovery-orientated outcomes. After further empirical investigation, a version of this model could be utilized in quantitative research, clinical training and consumer education.

The experience of recovery from schizophrenia: towards an empirically validated stage model

Objective: The lack of an accepted standard for measuring cognitive change in schizophrenia has been a major obstacle to regulatory approval of cognition-enhancing treatments. A primary mandate of the National Institute of Mental Health’s Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) initiative was to develop a consensus cognitive battery for clinical trials of cognition-enhancing treatments for schizophrenia through a broadly based scientific evaluation of measures. Method: The MATRICS Neurocognition Committee evaluated more than 90 tests in seven cognitive domains to identify the 36 most promising measures. A separate expert panel evaluated the degree to which each test met specific selection criteria. Twenty tests were selected as a beta battery. The beta battery was administered to 176 individuals with schizophrenia and readministered to 167 of them 4 weeks later so that the 20 tests could be compared directly. Results: The expert panel ratings are presented for th...

https://ajp.psychiatryonline.org/doi/pdf/10.1176/appi.ajp.2007.07010042

The MATRICS Consensus Cognitive Battery, Part 1: Test Selection, Reliability, and Validity

Living Outside Mental Illness: Qualitative Studies of Recovery in Schizophrenia

Consumer advocacy has emerged as an important factor in mental health policy during the past few decades. Winning consumer support for evidence-based practices requires recognition that consumers' desires and needs for various types of treatments and services differ significantly. The authors suggest that the degree of support for evidence-based practices by consumer advocates depends largely on the degree of disability of the persons for whom they are advocating. Advocates such as members of the National Alliance for the Mentally Ill, who focus on the needs of the most seriously disabled consumers, are most likely to be highly supportive of research that is grounded in evidence-based practices. On the other hand, advocates who focus more on the needs of consumers who are further along their road to recovery are more likely to be attracted to the recovery model. Garnering the support of this latter group entails ensuring that consumers, as they recover, are given increasing autonomy and greater input about the types of treatments and services they receive. The authors suggest ways to integrate evidence-based practices with the recovery model and then suggest a hybrid theory that maximizes the virtues and minimizes the weaknesses of each model.

http://static1.1.sqspcdn.com/static/f/1072889/16305004/1327883371977/evidence+based+meds+NAMI+frese2001.pdf?token=we8U29g%2Bd2cpiEJIaDfuV5KvHNc%3D

Integrating evidence-based practices and the recovery model.

As the concept of schizophrenia began to develop over a century ago, it was accompanied by little hope of recovery. As the second half of the 20th century began, new treatments and changing social conditions resulted in most long-term patients being discharged into the community. Many of these expatients showed more improvement than had been expected. Treatment approaches evolved to help these persons live better lives in the community. In the recent past, psychosocial and psychiatric rehabilitation approaches to treatment have increasingly incorporated perspectives of persons in recovery. These perspectives are explored with emphasis on how they have helped drive federal government and other perspectives on recovery. Particular attention is given to the varying views of psychiatrists, psychologists, and other highly trained persons who have themselves been diagnosed and treated for schizophrenia.

/pdf/recovery-from-schizophrenia-with-views-of-psychiatrists-56m6x5vy6b.pdf

Frederick J. Frese

Papers

The MATRICS Consensus Cognitive Battery, Part 1: Test Selection, Reliability, and Validity

Living Outside Mental Illness: Qualitative Studies of Recovery in Schizophrenia

Integrating evidence-based practices and the recovery model.

Recovery From Schizophrenia: With Views of Psychiatrists, Psychologists, and Others Diagnosed With This Disorder

Recovery From Schizophrenia: An International Perspective