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1.
Schizophr Bull ; 2024 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-38941445

RESUMEN

For several decades the National Institute of Mental Health (NIMH) has supported basic and translational research into cognitive impairment in schizophrenia. This article describes the Institute's ongoing commitment to cognitive assessment and intervention research, as reflected by three signature initiatives-Measurement and Treatment Research to Improve Cognition in Schizophrenia; Cognitive Neuroscience Treatment Research to Improve Cognition in Schizophrenia; and Research Domain Criteria-and related funding announcements that span basic experimental studies, efficacy and comparative effectiveness trials, and implementation research designed to promote cognitive healthcare in real-world treatment settings. We discuss how trends in science and public health policy since the early 2000s have influenced NIMH treatment development activities, resulting in greater attention to (1) inclusive teams that reflect end-user perspectives on the utility of proposed studies; (2) measurement of discrete neurocognitive processes to inform targeted interventions; (3) clinical trials that produce useful information about putative illness mechanisms, promising treatment targets, and downstream clinical effects; and (4) "productive urgency" in pursuing feasible and effective cognitive interventions for psychosis. Programs employing these principles have catalyzed cognitive measurement, drug development, and behavioral intervention approaches that aim to improve neurocognition and community functioning among persons with schizophrenia. NIMH will maintain support for innovative and impactful investigator-initiated research that advances patient-centered, clinically effective, and continuously improving cognitive health care for persons with psychotic disorders.

2.
JAMA Psychiatry ; 81(1): 9-10, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-37938818

RESUMEN

This Viewpoint discusses the need for integrating basic, clinical, and epidemiological science into behavioral health care delivery to develop more scalable and sustainable learning health care systems and improve population health and patient experience, reduce costs, and promote the well-being of the health care workforce.


Asunto(s)
Atención a la Salud , Sector Público , Humanos , Recursos Humanos , Evaluación del Resultado de la Atención al Paciente
6.
J Am Acad Child Adolesc Psychiatry ; 57(7): 515-516, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29960697

RESUMEN

In their recent JAACAP Commentary, Hoagwood et al.1 examined data extracted from the National Institutes of Health Research Portfolio Online Reporting Tools (RePORT) and concluded there has been a decrease in National Institute of Mental Health (NIMH) funding for child and adolescent services and intervention research during the 10-year period from 2005 to 2015. They eloquently argued for the importance of research that can guide practice and inform the organization and delivery of children's mental health services in the current context of unmet need and the state of mental health service delivery.


Asunto(s)
Servicios de Salud del Niño , Servicios de Salud Mental , Adolescente , Niño , Investigación sobre Servicios de Salud , Humanos , National Institute of Mental Health (U.S.) , Estados Unidos
7.
Schizophr Bull ; 43(6): 1262-1272, 2017 10 21.
Artículo en Inglés | MEDLINE | ID: mdl-28398566

RESUMEN

Objective: To assess 12-month mortality and patterns of outpatient and inpatient treatment among young people experiencing an incident episode of psychosis in the United States. Method: Prospective observational analysis of a population-based cohort of commercially insured individuals aged 16-30 receiving a first observed (index) diagnosis of psychosis in 2008-2009. Data come from the US Department of Health and Human Services' Multi-Payer Claims Database Pilot. Outcomes are all-cause mortality identified via the Social Security Administration's full Death Master File; and inpatient, outpatient, and psychopharmacologic treatment based on health insurance claims data. Outcomes are assessed for the year after the index diagnosis. Results: Twelve-month mortality after the index psychosis diagnosis was 1968 per 100000 under our most conservative assumptions, some 24 times greater than in the general US population aged 16-30; and up to 7372 per 100000, some 89 times the corresponding general population rate. In the year after index, 61% of the cohort filled no antipsychotic prescriptions and 41% received no individual psychotherapy. Nearly two-thirds (62%) of the cohort had at least one hospitalization and/or one emergency department visit during the initial year of care. Conclusions: The hugely elevated mortality observed here underscores that young people experiencing psychosis warrant intensive clinical attention-yet we found low rates of pharmacotherapy and limited use of psychosocial treatment. These patterns reinforce the importance of providing coordinated, proactive treatment for young people with psychosis in US community settings.


Asunto(s)
Antipsicóticos/uso terapéutico , Causas de Muerte , Servicio de Urgencia en Hospital/estadística & datos numéricos , Servicios de Salud/estadística & datos numéricos , Hospitalización/estadística & datos numéricos , Psicoterapia/estadística & datos numéricos , Trastornos Psicóticos/mortalidad , Trastornos Psicóticos/terapia , Adolescente , Adulto , Femenino , Humanos , Seguro de Salud , Masculino , Estudios Prospectivos , Trastornos Psicóticos/tratamiento farmacológico , Estados Unidos/epidemiología , Adulto Joven
8.
Early Interv Psychiatry ; 11(6): 480-487, 2017 12.
Artículo en Inglés | MEDLINE | ID: mdl-26456932

RESUMEN

AIM: High rates of anxiety have been observed in youth at clinical high risk (CHR) of developing psychosis. In CHR, anxiety often co-occurs with depression, and there is inconsistent evidence on anxiety in relation to transition to psychosis. The aim of this study was to examine: (i) the prevalence of anxiety disorders in individuals at CHR; (ii) clinical differences between those with and without anxiety; and (iii) the association of baseline anxiety with later transition to psychosis. METHODS: The sample consisted of 765 CHR individuals and 280 healthy controls. CHR status was determined with the Structured Interview of Prodromal Syndromes, mood and anxiety diagnoses with the Structured Clinical Interview for DSM-IV Disorders, and severity of anxiety with the Social Interaction Anxiety Scale and Self-Rating Anxiety Scale. RESULTS: In the CHR sample, 51% met criteria for an anxiety disorder. CHR participants had significantly more anxiety diagnoses and severity than healthy controls. Anxiety was correlated to attenuated psychotic and negative symptoms in CHR and those with an anxiety disorder demonstrated more suspiciousness. CHR participants with obsessive-compulsive disorder (OCD) exhibited more severe symptomatology than those without OCD. An initial presentation of anxiety did not differ between those who did or did not transition to psychosis. CONCLUSIONS: In this large sample of individuals at CHR, anxiety is common and associated with more severe attenuated psychotic symptoms. Treatment not only to prevent or delay transition to psychosis but also to address presenting concerns, such as anxiety, is warranted.


Asunto(s)
Trastornos de Ansiedad/epidemiología , Trastornos Psicóticos/epidemiología , Adolescente , Estudios de Casos y Controles , Comorbilidad , Femenino , Humanos , Masculino , Síntomas Prodrómicos , Trastornos Psicóticos/diagnóstico , Estados Unidos/epidemiología , Adulto Joven
9.
Am J Psychiatry ; 173(10): 980-988, 2016 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-27363508

RESUMEN

OBJECTIVE: Approximately 20%-35% of individuals 12-35 years old who meet criteria for a prodromal risk syndrome convert to psychosis within 2 years. However, this estimate ignores the fact that clinical high-risk cases vary considerably in risk. The authors sought to create a risk calculator, based on profiles of risk indicators, that can ascertain the probability of conversion to psychosis in individual patients. METHOD: The study subjects were 596 clinical high-risk participants from the second phase of the North American Prodrome Longitudinal Study who were followed up to the time of conversion to psychosis or last contact (up to 2 years). The predictors examined were limited to those that are supported by previous studies and are readily obtainable in general clinical settings. Time-to-event regression was used to build a multivariate model predicting conversion, with internal validation using 1,000 bootstrap resamples. RESULTS: The 2-year probability of conversion to psychosis was 16%. Higher levels of unusual thought content and suspiciousness, greater decline in social functioning, lower verbal learning and memory performance, slower speed of processing, and younger age at baseline each contributed to individual risk for psychosis. Stressful life events, trauma, and family history of schizophrenia were not significant predictors. The multivariate model achieved a concordance index of 0.71 and, as reported in an article by Carrión et al., published concurrently with this one, was validated in an independent external data set. The results are instantiated in a web-based risk prediction tool envisioned to be most useful in research protocols involving the psychosis prodrome. CONCLUSIONS: A risk calculator comparable in accuracy to those for cardiovascular disease and cancer is available to predict individualized conversion risks in newly ascertained clinical high-risk cases. Given that the risk calculator can be validly applied only for patients who screen positive on the Structured Clinical Interview for Psychosis Risk Syndromes, which requires training to administer, its most immediate uses will be in research on psychosis risk factors and in research-driven clinical (prevention) trials.


Asunto(s)
Valor Predictivo de las Pruebas , Síntomas Prodrómicos , Trastornos Psicóticos/diagnóstico , Adolescente , Diagnóstico Precoz , Humanos , Estudios Longitudinales , Escalas de Valoración Psiquiátrica , Factores de Riesgo
11.
Schizophr Bull ; 42(5): 1234-42, 2016 09.
Artículo en Inglés | MEDLINE | ID: mdl-27105902

RESUMEN

OBJECTIVES: Recent studies have recognized that signs of functional disability in schizophrenia are evident in early phases of the disorder, and, as a result, can potentially serve as vulnerability markers of future illness. However, functional measures in the psychosis prodrome have focused exclusively on real-world achievements, rather than on the skills required to carry-out a particular real-world function (ie, capacity). Despite growing evidence that diminished capacity is critical to the etiology of the established disorder, virtually no attention has been directed towards assessing functional capacity in the pre-illness stages. In the present study, we introduce the Map task, a measure to assess functional capacity in adolescent and young-adult high-risk populations. METHODS: The Map task was administered to 609 subjects at Clinical High-Risk (CHR) for psychosis and 242 Healthy Controls (HCs) participating in the North American Prodrome Longitudinal Study (NAPLS2). Subjects were required to efficiently complete a set of specified errands in a fictional town. RESULTS: CHR participants showed large impairments across major indices of the Map task, relative to the HCs. Most importantly, poor performance on the Map task significantly predicted conversion to psychosis, even after adjusting for age, IQ, clinical state, and other potential confounders. CONCLUSIONS: To the best of our knowledge, the Map task is one of the first laboratory-based measures to assess functional capacity in high-risk populations. Functional capacity deficits prior to the onset of psychosis may reflect a basic mechanism that underlies risk for psychosis. Early intervention targeting this domain may help to offset risk and independently improve long-term outcome.


Asunto(s)
Función Ejecutiva/fisiología , Síntomas Prodrómicos , Trastornos Psicóticos/fisiopatología , Adolescente , Adulto , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Riesgo , Adulto Joven
12.
Schizophr Res ; 172(1-3): 29-34, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26905038

RESUMEN

BACKGROUND: Prodromal syndromes often begin in adolescence - a period of neurodevelopmental changes and heightened stress sensitivity. Research has shown elevated stress and cortisol in individuals at clinical high risk (CHR) for psychosis. This cross-sectional study examined relations of age and pubertal status with cortisol and self-reported stress in healthy controls (HCs) and CHR adolescents. It was hypothesized that the relations of age and pubertal stage with cortisol and stress would be more pronounced in CHR youth. METHODS: Participants were 93 HCs and 348 CHR adolescents from the North American Prodrome Longitudinal Study (NAPLS). At baseline, measures of stress (Daily Stress Inventory - DSI), Tanner stage (TS), and salivary cortisol were obtained. RESULTS: ANCOVA revealed increased DSI scores with age for both groups, and higher DSI scores in CHR adolescents than HCs, with a more pronounced difference for females. Contrary to prediction, with age controlled, HCs showed greater TS-related DSI increases. Analysis of cortisol showed no significant interactions, but a main effect of age and a trend toward higher cortisol in the CHR group. Correlations of cortisol with TS were higher in HC than CHR group. CONCLUSIONS: Stress measures increased with age in HC and CHR adolescents, and DSI scores also increased with TS in HCs. The results do not support a more pronounced age or TS increase in stress measures in CHR adolescents, but instead suggest that stress indices tend to be elevated earlier in adolescence in the CHR group. Potential determinants of findings and future directions are discussed.


Asunto(s)
Hidrocortisona/metabolismo , Trastornos Psicóticos/fisiopatología , Pubertad/fisiología , Saliva/metabolismo , Esquizofrenia/fisiopatología , Estrés Psicológico/fisiopatología , Adolescente , Femenino , Humanos , Estudios Longitudinales , Masculino , Síntomas Prodrómicos , Trastornos Psicóticos/epidemiología , Riesgo , Esquizofrenia/epidemiología , Caracteres Sexuales , Estrés Psicológico/epidemiología
13.
Schizophr Res ; 172(1-3): 106-13, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26896388

RESUMEN

The MATRICS Consensus Cognitive Battery (MCCB) fills a significant need for a standardized battery of cognitive tests to use in clinical trials for schizophrenia in adults aged 20-59. A need remains, however, to develop norms for younger individuals, who also show elevated risks for schizophrenia. Toward this end, we assessed performance in healthy adolescents. Baseline MCCB, reading and IQ data were obtained from healthy controls (ages 12-19) participating in two concurrent NIMH-funded studies: North American Prodromal Longitudinal Study phase 2 (NAPLS-2; n=126) and Boston Center for Intervention Development and Applied Research (CIDAR; n=13). All MCCB tests were administered except the Managing Emotions subtest from the Mayer-Salovey-Caruso Emotional Intelligence Test. Data were collected from 8 sites across North America. MCCB scores were presented in four 2-year age cohorts as T-scores for each test and cognitive domain, and analyzed for effects of age and sex. Due to IQ differences between age-grouped subsamples, IQ served as a covariate in analyses. Overall and sex-based raw scores for individual MCCB tests are presented for each age-based cohort. Adolescents generally showed improvement with age in most MCCB cognitive domains, with the clearest linear trends in Attention/Vigilance and Working Memory. These control data show that healthy adolescence is a dynamic period for cognitive development that is marked by substantial improvement in MCCB performance through the 12-19 age range. They also provide healthy comparison raw scores to facilitate clinical evaluations of adolescents, including those at risk for developing psychiatric disorders such as schizophrenia-related conditions.


Asunto(s)
Cognición , Pruebas Psicológicas , Adolescente , Factores de Edad , Niño , Estudios de Cohortes , Femenino , Humanos , Estudios Longitudinales , Masculino , Psicología del Adolescente , Trastornos Psicóticos/diagnóstico , Valores de Referencia , Esquizofrenia/diagnóstico , Psicología del Esquizofrénico
14.
Am J Psychiatry ; 173(4): 362-72, 2016 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-26481174

RESUMEN

OBJECTIVE: The primary aim of this study was to compare the impact of NAVIGATE, a comprehensive, multidisciplinary, team-based treatment approach for first-episode psychosis designed for implementation in the U.S. health care system, with community care on quality of life. METHOD: Thirty-four clinics in 21 states were randomly assigned to NAVIGATE or community care. Diagnosis, duration of untreated psychosis, and clinical outcomes were assessed via live, two-way video by remote, centralized raters masked to study design and treatment. Participants (mean age, 23) with schizophrenia and related disorders and ≤6 months of antipsychotic treatment (N=404) were enrolled and followed for ≥2 years. The primary outcome was the total score of the Heinrichs-Carpenter Quality of Life Scale, a measure that includes sense of purpose, motivation, emotional and social interactions, role functioning, and engagement in regular activities. RESULTS: The 223 recipients of NAVIGATE remained in treatment longer, experienced greater improvement in quality of life and psychopathology, and experienced greater involvement in work and school compared with 181 participants in community care. The median duration of untreated psychosis was 74 weeks. NAVIGATE participants with duration of untreated psychosis of <74 weeks had greater improvement in quality of life and psychopathology compared with those with longer duration of untreated psychosis and those in community care. Rates of hospitalization were relatively low compared with other first-episode psychosis clinical trials and did not differ between groups. CONCLUSIONS: Comprehensive care for first-episode psychosis can be implemented in U.S. community clinics and improves functional and clinical outcomes. Effects are more pronounced for those with shorter duration of untreated psychosis.


Asunto(s)
Antipsicóticos/uso terapéutico , Servicios Comunitarios de Salud Mental/métodos , Educación Especial , Empleos Subvencionados , Educación del Paciente como Asunto , Psicoterapia , Trastornos Psicóticos/terapia , Esquizofrenia/terapia , Adolescente , Adulto , Familia , Femenino , Humanos , Masculino , National Institute of Mental Health (U.S.) , Grupo de Atención al Paciente , Calidad de Vida , Factores de Tiempo , Estados Unidos , Adulto Joven
15.
Behav Cogn Psychother ; 44(2): 203-13, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25896713

RESUMEN

BACKGROUND: Schema Theory proposes that the development of maladaptive schemas are based on a combination of memories, emotions and cognitions regarding oneself and one's relationship to others. A cognitive model of psychosis suggests that schemas are crucial to the development and persistence of psychosis. Little is known about the impact that schemas may have on those considered to be at clinical high risk (CHR) of developing psychosis. AIMS: To investigate schemas over time in a large sample of CHR individuals and healthy controls. METHOD: Sample included 765 CHR participants and 280 healthy controls. Schemas were assessed at baseline, 6 and 12 months using the Brief Core Schema Scale (BCSS). Baseline schemas were compared to 2-year clinical outcome. RESULTS: CHR participants evidenced stable and more maladaptive schemas over time compared to controls. Schemas at initial contact did not vary amongst the different clinical outcome groups at 2 years although all CHR outcome groups evidenced significantly worse schemas than healthy controls. Although there were no differences on baseline schemas between those who later transitioned to psychosis compared to those who did not, those who transitioned to psychosis had more maladaptive negative self-schemas at the time of transition. Associations between negative schemas were positively correlated with earlier abuse and bullying. CONCLUSIONS: These findings demonstrate a need for interventions that aim to improve maladaptive schemas among the CHR population. Therapies targeting self-esteem, as well as schema therapy may be important work for future studies.


Asunto(s)
Cultura , Trastornos Psicóticos/psicología , Adaptación Psicológica , Adolescente , Estudios de Casos y Controles , Cognición , Femenino , Humanos , Estudios Longitudinales , Masculino , Pruebas Neuropsicológicas , Síntomas Prodrómicos , Factores de Riesgo , Autoimagen , Encuestas y Cuestionarios , Adulto Joven
16.
Schizophr Res ; 169(1-3): 169-177, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26441004

RESUMEN

BACKGROUND: Improving predictive accuracy is of paramount importance for early detection and prevention of psychosis. We sought a symptom severity classifier that would improve psychosis risk prediction. METHODS: Subjects were from two cohorts of the North American Prodrome Longitudinal Study. All subjects met Criteria of Psychosis-Risk States. In Cohort-1 (n=296) we developed a classifier that included those items of the Scale of Psychosis-Risk Symptoms that best distinguished subjects who converted to psychosis from nonconverters, with performance initially validated by randomization tests in Cohort-1. Cohort-2 (n=592) served as an independent test set. RESULTS: We derived 2-Item and 4-Item subscales. Both included unusual thought content and suspiciousness; the latter added reduced ideational richness and difficulties with focus/concentration. The Concordance Index (C-Index), a measure of discrimination, was similar for each subscale across cohorts (4-Item subscale Cohort-2: 0.71, 95% CI=[0.64, 0.77], Cohort-1: 0.74, 95% CI=[0.69, 0.80]; 2-Item subscale Cohort-2: 0.68, 95% CI=[0.3, 0.76], Cohort-1: 0.72, 95% CI=[0.66-0.79]). The 4-Item performed better than the 2-Item subscale in 742/1000 random selections of 80% subsets of Cohort-2 subjects (p-value=1.3E-55). Subscale calibration between cohorts was proportional (higher scores/lower survival), but absolute conversion risk predicted from Cohort-1 was higher than that observed in Cohort-2, reflecting the cohorts' differences in 2-year conversion rates (Cohort-2: 0.16, 95% CI=[0.13, 0.19]; Cohort-1: 0.30, 95% CI=[0.24, 0.36]). CONCLUSION: Severity of unusual thought content, suspiciousness, reduced ideational richness, and difficulty with focus/concentration informed psychosis risk prediction. Scales based on these symptoms may have utility in research and, assuming further validation, eventual clinical applications.


Asunto(s)
Trastornos del Conocimiento/etiología , Trastornos Psicóticos/complicaciones , Pensamiento/fisiología , Adolescente , Trastornos del Conocimiento/diagnóstico , Estudios de Cohortes , Femenino , Humanos , Masculino , Pruebas Neuropsicológicas , Escalas de Valoración Psiquiátrica , Trastornos Psicóticos/psicología , Curva ROC , Reproducibilidad de los Resultados , Factores de Riesgo , Análisis de Supervivencia , Adulto Joven
17.
Schizophr Bull ; 41(5): 1066-75, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26272875

RESUMEN

It is not well established whether the incident outcomes of the clinical high-risk (CHR) syndrome for psychosis are diagnostically specific for psychosis or whether CHR patients also are at elevated risk for a variety of nonpsychotic disorders. We collected 2 samples (NAPLS-1, PREDICT) that contained CHR patients and a control group who responded to CHR recruitment efforts but did not meet CHR criteria on interview (help-seeking comparison patients [HSC]). Incident diagnostic outcomes were defined as the occurrence of a SIPS-defined psychosis or a structured interview diagnosis from 1 of 3 nonpsychotic Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) groups (anxiety, bipolar, or nonbipolar mood disorder), when no diagnosis in that group was present at baseline. Logistic regression revealed that the CHR vs HSC effect did not vary significantly across study for any emergent diagnostic outcome; data from the 2 studies were therefore combined. CHR (n = 271) vs HSC (n = 171) emergent outcomes were: psychosis 19.6% vs 1.8%, bipolar disorders 1.1% vs 1.2%, nonbipolar mood disorders 4.4% vs 5.3%, and anxiety disorders 5.2% vs 5.3%. The main effect of CHR vs HSC was statistically significant (OR = 13.8, 95% CI 4.2-45.0, df = 1, P < .001) for emergent psychosis but not for any emergent nonpsychotic disorder. Sensitivity analyses confirmed these findings. Within the CHR group emergent psychosis was significantly more likely than each nonpsychotic DSM-IV emergent disorder, and within the HSC group emergent psychosis was significantly less likely than most emergent nonpsychotic disorders. The CHR syndrome is specific as a marker for research on predictors and mechanisms of developing psychosis.


Asunto(s)
Trastornos Psicóticos Afectivos/diagnóstico , Trastornos de Ansiedad/diagnóstico , Trastorno Bipolar/diagnóstico , Trastornos del Humor/diagnóstico , Síntomas Prodrómicos , Trastornos Psicóticos/diagnóstico , Adolescente , Adulto , Trastornos Psicóticos Afectivos/clasificación , Trastornos Psicóticos Afectivos/epidemiología , Trastornos de Ansiedad/clasificación , Trastornos de Ansiedad/epidemiología , Trastorno Bipolar/clasificación , Manual Diagnóstico y Estadístico de los Trastornos Mentales , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Masculino , Trastornos del Humor/clasificación , Trastornos del Humor/epidemiología , Aceptación de la Atención de Salud , Trastornos Psicóticos/clasificación , Trastornos Psicóticos/epidemiología , Riesgo , Sensibilidad y Especificidad , Síndrome , Adulto Joven
19.
Mol Neuropsychiatry ; 1(1): 13-22, 2015 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-26005673

RESUMEN

A recent prospective longitudinal neuroimaging study of 274 prodromal risk syndrome subjects revealed that those who later developed full-blown psychotic symptoms exhibited accelerated gray matter loss and third ventricle expansion around the time of onset of psychosis. Previous studies also indicate that higher levels of unusual thought content during prodromal states are a significant predictor of psychosis in clinically high-risk youth (CHR). However, the relationship between clinical symptoms and changes in neuroanatomical structure has not been previously examined in the North American Prodrome Longitudinal Study (NAPLS) sample at the atlas level. In this report, we investigated whether symptom severity as measured by the Scale of Prodromal Symptoms (SOPS) predicted the accelerated gray matter decline in 274 CHR cases, including 35 who converted to psychosis. Higher levels of unusual thought content (pre-delusional) symptoms at baseline were associated with a steeper rate of gray matter loss in the prefrontal cortex bilaterally among converters. In contrast, there was no association found among non-converters. Steeper gray matter loss seems to be unique to those (CHR) individuals with higher levels of sub-psychotic pre-delusional symptoms that acutely worsen in the ramp-up to full-blown psychosis, and as such may reflect pathophysiological processes driving emergence of psychosis.

20.
Schizophr Res ; 166(1-3): 31-6, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25999040

RESUMEN

It is now well established that the utilization of standardized clinical criteria can enhance prediction of psychosis. These criteria are primarily concerned with the presence and severity of attenuated positive symptoms. Because these symptom criteria are used to derive algorithms for designating clinical high risk (CHR) status and for maximizing prediction of psychosis risk, it is important to know whether the symptom ratings vary as a function of demographic factors that have previously been linked with symptoms in diagnosed psychotic patients. Using a sample of 356 CHR individuals from the NAPLS-II multi-site study, we examined the relation of three sex, age, and educational level, with the severity of attenuated positive symptom scores from the Scale of Prodromal Symptoms (SOPS). Demographic factors accounted for little of the variance in symptom ratings (5-6%). Older CHR individuals manifested more severe suspiciousness, and female CHR participants reported more unusual perceptual experiences than male participants. Contrary to prediction, higher educational level was associated with more severe ratings of unusual thought content, but less severe perceptual abnormalities. Overall, sex, age and education were modestly related to unusual thought content and perceptual abnormalities, only, suggesting minimal implication for designating CHR status and predicting psychosis-risk.


Asunto(s)
Trastornos Psicóticos/epidemiología , Trastornos Psicóticos/psicología , Adolescente , Adulto , Factores de Edad , Niño , Escolaridad , Femenino , Humanos , Modelos Logísticos , Estudios Longitudinales , Masculino , Síntomas Prodrómicos , Escalas de Valoración Psiquiátrica , Factores Sexuales , Adulto Joven
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