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Social anhedonia is a hallmark symptom of schizophrenia. Discrepancies in anticipated versus consummatory pleasure for non-social stimuli are well-documented. Thus, a similar emotional paradox may underlie social anhedonia. If so, our understanding of social anhedonia-including how to treat it in schizophrenia-could be enhanced. This project used a 5-day experience sampling method (ESM) to measure discrepancies between anticipated and consummatory pleasure for real-world social activities in people with schizophrenia and healthy controls (n = 30/group). ESM results were compared to laboratory assessments of negative symptoms and neurocognition. The schizophrenia group exhibited similar levels of anticipated and consummatory social pleasure as controls throughout daily life, and both groups were accurate in their short-term predictions of pleasure. Clinical interviews revealed those with schizophrenia showed significant deficits in long-term social pleasure prediction (i.e., a 1-week timeframe). Thus, people with schizophrenia may exhibit differences in ability to predict pleasure in the short-term versus the long-term. Negative symptoms and neurocognition were related to anticipated, but not consummatory, social pleasure, suggesting anhedonia is driven by deficits in thinking about pleasure, rather than inability to experience pleasure. Clinical implications include focusing on building upon short-term ability to predict pleasure in therapy to increase social motivation in schizophrenia.
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OBJECTIVE: The prevalence of mental health conditions in pediatric patients in the United States is approximately 15%. Concerningly, nearly half go untreated, with lower treatment rates among children of color. Collaborative care can increase access to care and has an emerging evidence base for pediatrics. We present retrospective results from a collaborative care program that accepted referrals for a variety of conditions. METHODS: Pediatric patients seen in an academic, urban collaborative care program from July 2019 to December 2021 were tracked in a registry. Demographics, presenting problem(s), symptoms, treatment, and discharge dispositions were examined. Descriptive data were analyzed, including changes in reported symptoms via paired t-tests. RESULTS: Three hundred nineteen patients were seen. Racial and ethnic diversity in our clinic's population was similar to that of the surrounding community, with half belonging to a minoritized racial or ethnic group. Symptom comparisons demonstrated clinically and statistically significant improvements from intake to discharge. CONCLUSION: Collaborative care can improve access to care and outcomes for a diverse pediatric population. Our clinic served racial and ethnic patient populations that were representative of the demographics of the metropolitan area. Further study is necessary to determine if collaborative care increases access for these underserved groups.
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Clinical High Risk for psychosis (CHR) refers to a phase of heightened risk for developing overt psychosis. CHR often emerges during adolescence or early adulthood. CHR has been identified as a group to target for intervention, with the hope that early intervention can both stave off prolonged suffering and intervene before mental health challenges become part of an individual's identity. However, there are few treatment modalities that can address some of the specific needs of CHR. Metacognitive Reflection and Insight Therapy (MERIT) is an integrative psychotherapy that can be applied to the CHR population. MERIT offers unique advantages to working with the CHR population as it aims to improve self-direction and recovery through stimulation of metacognitive capacity, a phenomenon that has been associated with recovery. This paper explores unique aspects of the CHR population and how MERIT can address barriers to recovery for individuals experiencing psychosis-like symptoms. Several case examples and a clinical vignette using MERIT to support patients with CHR are offered to exemplify this approach. MERIT offers a way to assist persons with CHR to address barriers to their personal recovery and to develop nuanced understandings of ways to master challenges.
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AIM: Individuals experiencing early phase psychosis (EPP) are at increased risk for legal involvement. In prior studies, between 14% and 75% of individuals with EPP reported a history of criminal offending behaviour, criminal charges, or criminal convictions. To better understand the frequency of criminal conviction in a specialty treatment clinic serving EPP clients, the research team supplemented self-reported data from the clinic intake with information from publicly available databases. METHODS: In this sample of 309 adults, approximately one quarter of patients (n = 76) self-reported a history of arrest, incarceration, probation, or parole within 6 months of enrolment in a treatment clinic. The research team expanded upon this and collected data from a public database of court proceedings in Indiana for all clinic participants before and after enrolment. RESULTS: Thirty-nine percent (n = 122) had three or more traffic tickets or a conviction for an ordinance violation, misdemeanour, or felony in the state of Indiana as an adult. This is over two times the national average. Drug and alcohol related convictions were the most common single conviction type, and 29% (n = 89) of subjects experienced at least one incarceration. CONCLUSIONS: These data highlight the need for specialty clinics to partner with professionals with expertise in the prevention and management of criminal behaviour. Future studies should examine risk factors for individuals experiencing EPP and criminal conviction.
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It is now widely accepted that there is a growing discrepancy between demand and access to adequate treatment for behavioral or mental health conditions in the United States. This results in immense personal, societal, and economic costs. One rapidly growing method of addressing this discrepancy is to integrate mental health services into the primary care setting, which has become the de facto service provider for these conditions. In this paper, we describe the development and implementation of a novel integrated care program in a large mid-western university-based healthcare system, drawn from the collaborative care model, and describe the benefits in terms of both health care utilization and depression outcomes. Limitations and proposed future directions are discussed.
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Depresión , Reforma de la Atención de Salud , Servicios de Salud Mental , Atención Primaria de Salud , Humanos , Masculino , Femenino , Adulto , Servicios de Salud Mental/organización & administración , Atención Primaria de Salud/métodos , Atención Primaria de Salud/organización & administración , Resultado del Tratamiento , Depresión/diagnóstico , Depresión/psicología , Depresión/terapia , Accesibilidad a los Servicios de Salud , Reforma de la Atención de Salud/métodos , Reforma de la Atención de Salud/organización & administración , Encuestas Epidemiológicas , Comorbilidad , Pacientes Ambulatorios , Servicio de Urgencia en Hospital , Aceptación de la Atención de Salud , Medio Oeste de Estados UnidosRESUMEN
ABSTRACT: Social distancing policies enacted during the COVID-19 pandemic altered our social interactions. People with schizophrenia, who already exhibit social deficits, may have been disproportionally impacted. In this pilot study, we a) compared prepandemic social functioning to functioning during the pandemic in people with schizophrenia ( n = 21) who had data at both time points; and b) examined if patterns of decline in schizophrenia differed from healthy controls ( n = 21) across a series of repeated-measures analyses of variance. We observed larger declines in social functioning in schizophrenia (η 2 = 0.07, medium effect size) during the pandemic compared with the control group. Between-group declines did not extend to other domains, suggesting that declines are specific to social functioning. Our findings signal that treatments focusing on reconnecting people with schizophrenia to their social networks should be prioritized. Future studies should continue tracking social functioning after the pandemic to illustrate patterns of recovery.
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COVID-19 , Esquizofrenia , Humanos , Esquizofrenia/epidemiología , Pandemias , Interacción Social , Proyectos PilotoRESUMEN
INTRODUCTION: Poor insight, or unawareness of morbid changes in cognition, emotional states, or behavior, is commonly observed among people with schizophrenia. Poor insight represents a persistent barrier to wellness because it interferes with treatment and self-direction. Paradoxically, good insight may also be a barrier to health when awareness of these changes leads to depression or self-stigma. AREAS COVERED: This paper builds upon this previous work by exploring these issues in schizophrenia separately as they have appeared in published research over the last three years in three different kinds of insight: clinical, cognition, and introspective accuracy. Specifically, studies are reviewed that address: the adverse effects of poor insight, the paradoxical effects of good insight, correlates with other forms of cognition, and emerging treatments. EXPERT OPINION: The evidence continues to offer a nuanced picture of the complex effects of good insight in schizophrenia. Incremental improvements were also found in the development of novel integrative treatment approaches. This work also highlights the intricacy of the concept of insight, the need for further exploration of the effects of culture, and conceptual work that distinguishes the points of convergence and divergence of these forms of insight.
PLAIN LANGUAGE SUMMARYMany people diagnosed with schizophrenia are unaware that they have a mental illness. This is referred to as having poor clinical insight. People struggle to form ideas about themselves or doubt what they think. This is referred to as having poor cognitive insight. Finally, many people diagnosed with schizophrenia may significantly overestimate their abilities. This is referred to as having poor introspective accuracy. This review shares research that shows that problems with these kinds of self-awareness can make it difficult for those with schizophrenia to manage their lives and the challenges of having a mental illness. At the same time, these problems with awareness may also protect people with schizophrenia from feeling depressed and at odds with the world. We discuss how these forms of unawareness result from many different factors and how new treatments may help individuals develop awareness without being vulnerable to significant emotional pain.
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Trastornos del Conocimiento , Esquizofrenia , Concienciación , Cognición , Trastornos del Conocimiento/etiología , Humanos , Esquizofrenia/complicaciones , Esquizofrenia/terapia , Psicología del EsquizofrénicoRESUMEN
Several lines of evidence have implicated white matter (WM) deficits in schizophrenia, including microstructural alterations from diffusion tensor (DTI) brain imaging studies. It has been proposed that dysregulated inflammatory processes, including heightened activity of circulating lymphocytes, may contribute to WM pathology in this illness. Fingolimod is a sphingosine-1-phosphate (S1P) receptor agonist that is approved for the treatment of relapsing multiple sclerosis (MS). Fingolimod robustly decreases the number of circulating lymphocytes through sequestration of these cells in lymph tissue. In addition, this agent improved WM microstructure as shown by increases in DTI fractional anisotropy (FA). In this pilot study, we assessed the effects of fingolimod on WM microstructure, cognition and symptoms in an eight-week, double-blind trial. Forty subjects with schizophrenia or schizoaffective disorder were randomized 1:1 to fingolimod (0.5 mg/day) and placebo. Fingolimod caused significant reductions in circulating lymphocytes (p < .001). In addition, there was a statistically non-significant association (p = .089) between DTI-FA change in the WM skeleton and fingolimod. There were significant relationships between the degree of lymphocyte reductions and increases in FA in the corpus collosum (p = .004) and right superior longitudinal fasciculus ( p = .02), and a non-significant correlation with the WM skeleton. There were no significant fingolimod versus placebo interactions on cognitive or symptom measures. There were no serious adverse events related to fingolimod treatment. Future studies with larger samples and treatment durations are needed to further establish fingolimod's potential therapeutic effects in schizophrenia.
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Esquizofrenia , Sustancia Blanca , Anisotropía , Encéfalo/diagnóstico por imagen , Cognición , Imagen de Difusión Tensora , Clorhidrato de Fingolimod/uso terapéutico , Humanos , Lisofosfolípidos , Imagen por Resonancia Magnética , Proyectos Piloto , Esquizofrenia/diagnóstico por imagen , Esquizofrenia/tratamiento farmacológico , Esfingosina/análogos & derivados , Sustancia Blanca/diagnóstico por imagenRESUMEN
Impairments in metacognition or the ability to form integrated senses of self and others have been linked to deficits in laboratory-based measures of social functioning in schizophrenia. This study examined whether self-reported social functioning was related to metacognition in 88 adults in a nonacute phase of schizophrenia. Concurrent assessments were made of metacognition with the Metacognition Assessment Scale-Abbreviated, social functioning with the Social Functioning Scale, symptoms with the Positive and Negative Syndrome Scale, and neurocognition with the Wisconsin Card Sorting Task. Univariate correlations revealed that self-reported social functioning was related to metacognition. Symptom severity was linked to interpersonal relationships, and overall metacognition was found to significantly moderate that relationship such that the effects of symptoms on function grew less as metacognitive capacity was stronger, independent of the effects of neurocognition. This may suggest the potential of metacognitive interventions to titrate the negative effects of symptoms on social function.
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Relaciones Interpersonales , Metacognición , Psicología del Esquizofrénico , Ajuste Social , Femenino , Humanos , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Pruebas Psicológicas , Trastornos Psicóticos/diagnóstico , Trastornos Psicóticos/psicología , Esquizofrenia/diagnóstico , Test de Clasificación de Tarjetas de WisconsinRESUMEN
Bleuler suggested that fragmentation of thought, emotion and volition were the unifying feature of the disorders he termed schizophrenia. In this paper we review research seeking to measure some of the aspects of fragmentation related to the experience of the self and others described by Bleuler. We focus on work which uses the concept of metacognition to characterize and quantify alterations or decrements in the processes by which fragments or pieces of information are integrated into a coherent sense of self and others. We describe the rationale and support for one method for quantifying metacognition and its potential to study the fragmentation of a person's sense of themselves, others and the relative place of themselves and others in the larger human community. We summarize research using that method which suggests that deficits in metacognition commonly occur in schizophrenia and are related to basic neurobiological indices of brain functioning. We also present findings indicating that the capacity for metacognition in schizophrenia is positively related to a broad range of aspects of psychological and social functioning when measured concurrently and prospectively. Finally, we discuss the evolution and study of one therapy that targets metacognitive capacity, Metacognitive Reflection and Insight Therapy (MERIT) and its potential to treat fragmentation and promote recovery.
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Metacognition is the process of thinking about one's own mental states. It involves a range of faculties that allow an individual to integrate information and form understanding of self and others, and use this understanding to respond to life challenges. Clinical insight is the awareness of one's mental illness, its consequences, and the need for treatment. Persons with psychotic disorders show impaired metacognition and insight, but the neurobiological bases for these impairments are not well characterized. We hypothesized that metacognition and insight may depend on capacity of neural circuits to synchronize at gamma frequencies, as well as the integrity of underlying cognitive processes. In order to test these hypotheses, 17 adults with early phase psychosis were evaluated. Metacognition was assessed with the Metacognition Assessment Scale-Abbreviated, and insight was assessed with the Scale of Unawareness of Illness-Abbreviated. The auditory steady state response (ASSR) to gamma range stimulation (40 Hz) was used as an index of neural synchronization. Cognitive function was assessed using the Brief Assessment of Cognition in Schizophrenia. Increases in ASSR power were associated with poorer metacognition and insight. Higher cognitive performance was associated with higher levels of metacognitive function and insight. These findings suggest that altered neural synchronization and constituent cognitive processes affect both metacognition and insight in early phase psychosis and may offer targets for both pharmacological and psychotherapeutic interventions.
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Metacognición , Trastornos Psicóticos , Esquizofrenia , Adulto , Cognición , Electroencefalografía , HumanosRESUMEN
BACKGROUND: Several studies have implicated herpes simplex virus-type 1 (HSV-1) in the pathophysiology of schizophrenia. A recent trial demonstrated that the anti-viral medication valacylovir, which prevents replication of activated HSV-1, improved selected cognitive deficits in people with schizophrenia. In this study, we examined demographic and illness related differences between HSV-1 positive versus HSV-1 negative subjects with early phase schizophrenia and attempted to replicate the previous valacyclovir treatment results in this population. METHODS: 170 subjects with schizophrenia (HSV-1 positive Nâ¯=â¯70; HSV-1 negative Nâ¯=â¯96) from 12 US sites participated in the HSV-1 positive versus negative comparisons, and were randomized 1:1 to valacyclovir (1.5â¯g BID) or placebo for a 16-week, double-blind efficacy trial. The primary endpoints were working and verbal memory. RESULTS: The HSV-1 positive group, as compared to the HSV-1 negative group, were older (pâ¯<â¯0.001) with fewer males (pâ¯=â¯0.003), and had a longer duration of illness (pâ¯=â¯0.008), more positive symptoms (pâ¯=â¯0.013), poorer quality of life (pâ¯=â¯0.034) and more impairment on the letter-number sequencing test, which is a measure of working memory (pâ¯=â¯0.045). Valacyclovir failed to significantly improve any of the cognitive indices, symptom or functioning measures. CONCLUSIONS: HSV-1 sero-positivity appears to be a marker of a subgroup with a more severe form of schizophrenia. Valacyclovir was not efficacious in the study, perhaps because the herpes virus was in the dormant, non-activated state and therefore non-responsive to valacyclovir effects. ClinicalTrials.gov Identifier: NCT02008773.
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Antivirales/uso terapéutico , Herpes Simple/tratamiento farmacológico , Herpesvirus Humano 1 , Esquizofrenia/tratamiento farmacológico , Valaciclovir/uso terapéutico , Adolescente , Adulto , Cognición , Método Doble Ciego , Femenino , Herpes Simple/complicaciones , Humanos , Masculino , Memoria , Calidad de Vida , Esquizofrenia/complicaciones , Esquizofrenia/virología , Resultado del Tratamiento , Estados Unidos , Adulto JovenRESUMEN
AIM: Although internalized stigma is associated with negative outcomes among those with prolonged psychosis, surprisingly little work has focused on when in the course of one's illness stigma is internalized and the impact of internalization on symptoms or social functioning over the course of the illness. Therefore, this study investigated whether (1) internalized stigma is greater among those later in the course of psychosis and (2) whether internalized stigma has a stronger negative relationship with social functioning or symptoms among those with prolonged compared to early phase psychosis. METHODS: Individuals with early phase (n = 40) and prolonged psychosis (n = 71) who were receiving outpatient services at an early-intervention clinic and a VA medical center, respectively, completed self-report measures of internalized stigma and interview-rated measures of symptoms and social functioning. RESULTS: Controlling for education, race and sex differences, internalized stigma was significantly greater among those with prolonged psychosis compared to early phase. Internalized stigma was negatively related to social functioning and positively related to symptoms in both groups. Furthermore, the magnitude of the relationship between cognitive symptoms and internalized stigma was significantly greater among those with early phase. Stereotype endorsement, discrimination experiences and social withdrawal also differentially related to symptoms and social functioning across the 2 samples. CONCLUSIONS: Findings suggest that internalized stigma is an important variable to incorporate into models of early psychosis. Furthermore, internalized stigma may be a possible treatment target among those with early phase psychosis.
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Control Interno-Externo , Trastornos Psicóticos/psicología , Estigma Social , Intervención Médica Temprana/estadística & datos numéricos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Ajuste Social , Factores de Tiempo , Adulto JovenRESUMEN
The integrated model of insight in schizophrenia suggests that poor insight is the result of multiple factors which compromise persons' abilities to integrate streams of information into a personal awareness of psychiatric challenges, and make adaptive responses. This model hypothesizes that metacognitive deficits, or difficulties forming a complex and integrated understanding of the self and others, influence insight, regardless of other proximal causes including clinical profile. To explore this possibility, we performed a latent class analysis on 324 adults with schizophrenia or schizoaffective disorder. This analysis produced 4 groups on the basis of assessment of insight and Positive and Negative Syndrome Scale (PANSS) positive, negative, cognitive, and hostility symptoms. The resultant groups were characterized as: Good Insight/Low Symptoms (n = 71), Impaired Insight/High Negative Symptoms, (n = 43), Impaired Insight/High Positive Symptoms (n = 50) and Impaired Insight/Diffuse Symptoms (n = 160). When we compared metacognitive function as assessed with the Metacognition Assessment Scale - Abbreviated (MAS-A) across groups, we found that the good insight group had better overall metacognition as well as higher levels of self-reflectivity, awareness of the other and mastery as compared to all 3 groups with impaired insight. When controlling for total symptoms, all differences in metacognitive function between the good insight and the impaired insight groups remained significant. These results are consistent with the view that, independent of symptoms, impaired metacognition contributes to difficulties integrating information and hence impedes insight, or awareness of psychiatric challenges. Consistent with extant literature, results suggest that interventions focusing on metacognition as the target may lead to improved insight.
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Concienciación/fisiología , Metacognición/fisiología , Trastornos Psicóticos/fisiopatología , Esquizofrenia/fisiopatología , Adolescente , Adulto , Anciano , Concienciación/clasificación , Femenino , Humanos , Análisis de Clases Latentes , Masculino , Metacognición/clasificación , Persona de Mediana Edad , Trastornos Psicóticos/clasificación , Esquizofrenia/clasificación , Adulto JovenRESUMEN
Cognitive dysfunction is a core facet of schizophrenia that is present early in the course of the illness and contributes to diminished functioning and outcomes. Repetitive transcranial magnetic stimulation (rTMS) is a relatively new neuropsychiatric intervention. Initially used in treatment resistant depression, investigators are now studying rTMS for other psychiatric diseases such as schizophrenia. In this study we examined the effect of high frequency rTMS on cognitive function in a group of individuals with early phase psychosis. Twenty subjects were randomized (1:1) in double-blind fashion to rTMS or sham condition. Over two weeks subjects underwent ten sessions of high frequency, bilateral, sequential rTMS targeting the dorsolateral prefrontal cortex (DLPFC). Prior to beginning and following completion of study treatment, subjects completed a cognitive assessment and magnetic resonance imaging. Subjects receiving rTMS, compared to sham treatment, displayed improvement on a standardized cognitive battery both immediately following the course of study treatment and at follow-up two weeks later. Imaging results revealed that left frontal cortical thickness at baseline was correlated with treatment response. The study treatment was found to be safe and well tolerated. These results suggest that rTMS may hold promise for the treatment of cognitive dysfunction in the early phase of psychosis, and that MRI may provide biomarkers predicting response to the treatment.
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Cognición/fisiología , Esquizofrenia/terapia , Estimulación Magnética Transcraneal/métodos , Adolescente , Adulto , Método Doble Ciego , Femenino , Humanos , Masculino , Proyectos Piloto , Corteza Prefrontal/fisiopatología , Escalas de Valoración Psiquiátrica , Trastornos Psicóticos/fisiopatología , Trastornos Psicóticos/terapia , Esquizofrenia/fisiopatología , Resultado del Tratamiento , Adulto JovenRESUMEN
Despite historically pessimistic views from both the professional community and lay public, research is emerging that recovery from psychosis is possible. Recovery has evolved to include not only a reduction in symptoms and return to functioning, but a sense of agency and connection to meaningful roles in life. The development of a more comprehensive conceptualization of recovery has particular importance in the treatment of first-episode psychosis, because early intervention may avoid some of the prolonged dysfunction that may make recovery difficult. As the mental health field moves to intervene early in the course of psychosis and to support recovery for individuals with severe mental illness, it is essential to develop and assess interventions that may promote a more comprehensive recovery. This case illustration offers an account of a type of integrative psychotherapy that may assist individuals in achieving recovery: metacognitive reflection and insight therapy (MERIT).
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Metacognición , Psicoterapia , Trastornos Psicóticos/terapia , Esquizofrenia/terapia , Adulto , Humanos , Masculino , Adulto JovenRESUMEN
BACKGROUND: Anger experience and expression are a common issue in those experiencing PTSD. However, it remains unclear what variables affect anger and its expression in PTSD. AIMS: To explore the relationships of synthetic forms of metacognition and metacognitive beliefs with anger experience and expression in PTSD, independent of the effects hyperarousal and depression symptoms. METHOD: Participants were 51 veterans with diagnosed with PTSD. Metacognition was assessed using the Metacognition Assessment Scale-Abbreviated (MAS-A) and the Metacognitions Questionnaire (MCQ). Depression, PTSD symptom severity, and seven domains of anger expression were also assessed. RESULTS: Correlations showed after controlling for overall levels of hyperarousal, higher MAS-A total scores were related to lower levels of State Anger, Feeling Angry, Expressing Anger Physically, and Anger Expression in. Lower MCQ scores were related to lower State anger, Expressing anger verbally, and Expressing anger physically. Higher levels of depression were related to higher levels of Trait anger, Expressing anger physically, Anger expression out, and Anger expression in. Multiple regressions suggested that the MAS-A and MCQ predicted unique portions of the variance in anger experience and expression. CONCLUSIONS: Metacognitive deficits may affect anger experience and expression in those with PTSD and may be an important treatment target.
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Ira , Metacognición , Trastornos por Estrés Postraumático/psicología , Adulto , Nivel de Alerta , Depresión/complicaciones , Femenino , Humanos , Masculino , Trastornos por Estrés Postraumático/complicaciones , VeteranosRESUMEN
BACKGROUND: Currently approved medications for schizophrenia are relatively ineffective for negative symptoms and cognitive impairment. N-Acetyl Cysteine (NAC) is a neuroprotective agent that improved general symptoms, cognitive impairment and negative symptoms in some but not all studies, but failed to improve positive symptoms in patients with schizophrenia. Progressive brain mass loss (PBML) has been consistently observed in early phase schizophrenia. NAC mitigates the deleterious effects oxidative stress, inflammation and glutamatergic excitotoxicity and these three pathological processes are hypothesized to contribute to PBML. METHODS: In this study, we assessed the effects NAC (3600mg/day) in a 52-week, double-blind, placebo controlled trial on symptoms, and cognition in early phase schizophrenia spectrum disorders (N=60). In the context of the clinical trial, we explored the effects of NAC on brain morphology. RESULTS: NAC significantly improved (time×group) PANSS total (F=14.7, p<0.001), negative (F=5.1, p=0.024) and disorganized thought (F=13.7, p<0.001) symptom scores. NAC failed to improve PANSS positive symptoms and BACS cognitive scores. In preliminary analyses, baseline right (r=-0.48, p=0.041) and left (r=-0.45, p=0.018) total cortical thickness, and thickness in other cortical regions, were associated with NAC related improvement in PANSS total scores, but NAC, as compared to placebo, did not significantly impact brain morphology over the study treatment period. CONCLUSIONS: These results replicate some but not all previous findings of NAC efficacy. Preliminary results suggest that NAC's symptom effects may be related to structural integrity, but NAC failed to demonstrate treatment effects on longitudinal measures of brain morphology. ClinicalTrials.gov Identifier: NCT01339858.
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Acetilcisteína/uso terapéutico , Antipsicóticos/uso terapéutico , Encéfalo/efectos de los fármacos , Cognición/efectos de los fármacos , Esquizofrenia/tratamiento farmacológico , Acetilcisteína/efectos adversos , Adulto , Antipsicóticos/efectos adversos , Encéfalo/diagnóstico por imagen , Método Doble Ciego , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Esquizofrenia/diagnóstico por imagen , Psicología del Esquizofrénico , Factores de Tiempo , Resultado del Tratamiento , Adulto JovenRESUMEN
Poor insight in schizophrenia is prevalent across cultures and phases of illness. In this review, we examine the recent research on the relationship of insight with behavior, mood and perceived quality of life, on its complex roots, and on the effects of existing and emerging treatments. This research indicates that poor insight predicts poorer treatment adherence and therapeutic alliance, higher symptom severity and more impaired community function, while good insight predicts a higher frequency of depression and demoralization, especially when coupled with stigma and social disadvantage. This research also suggests that poor insight may arise in response to biological, experiential, neuropsychological, social-cognitive, metacognitive and socio-political factors. Studies of the effects of existing and developing treatments indicate that they may influence insight. In the context of earlier research and historical models, these findings support an integrative model of poor insight. This model suggests that insight requires the integration of information about changes in internal states, external circumstances, others' perspectives and life trajectory as well as the multifaceted consequences and causes of each of those changes. One implication is that treatments should, beyond providing education, seek to assist persons with schizophrenia to integrate the broad range of complex and potentially deeply painful experiences which are associated with mental illness into their own personally meaningful, coherent and adaptive picture.
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AIM: White matter abnormalities have been reported in schizophrenia and may indicate altered cortical network integrity and structural connectivity, which have been hypothesized as key pathophysiological components of this illness. In this study, we aimed to further characterize the nature and progression of white matter alterations during the early stages of the disorder. METHODS: We employed diffusion tensor imaging (DTI) approaches to investigate fractional anisotropy (FA), radial diffusivity (RD) and axial diffusivity (AD) in 40 patients with schizophrenia and related psychotic disorders (aged 18-30 years) who were within 5 years of illness, along with an age-, sex- and race-matched sample of 21 healthy controls. Relationships with illness duration, lifetime antipsychotic medication exposure and symptom levels were examined. RESULTS: Patients had lower FA and higher RD than controls in numerous white matter tracts, including the corpus callosum (CC) and the superior longitudinal fasciculus. Illness duration was associated with lower FA and higher RD, most prominently in the CC. No group differences or relationships to illness duration were detected with AD, and no relationships between any DTI measurements and lifetime antipsychotic medication use were found. CONCLUSIONS: This investigation provides evidence of widespread disruptions to structural connectivity in the early stages of schizophrenia. The relationship to illness duration, coupled with an absence of relationships to AD or antipsychotic drug exposure, provides evidence of a progressive disease process, although prospective assessments with repeated DTI measurements are needed to fully characterize the trajectory of white matter abnormalities in this illness.