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1.
Bipolar Disord ; 26(3): 216-239, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38433530

RESUMO

BACKGROUND: Abnormalities in dopamine and norepinephrine signaling are implicated in cognitive impairments in bipolar disorder (BD) and attention-deficit hyperactivity disorder (ADHD). This systematic review by the ISBD Targeting Cognition Task Force therefore aimed to investigate the possible benefits on cognition and/or ADHD symptoms and safety of established and off-label ADHD therapies in BD. METHODS: We included studies of ADHD medications in BD patients, which involved cognitive and/or safety measures. We followed the procedures of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) 2020 statement. Searches were conducted on PubMed, Embase and PsycINFO from inception until June 2023. Two authors reviewed the studies independently using the Revised Cochrane Collaboration's Risk of Bias tool for Randomized trials. RESULTS: Seventeen studies were identified (N = 2136), investigating armodafinil (k = 4, N = 1581), methylphenidate (k = 4, N = 84), bupropion (k = 4, n = 249), clonidine (k = 1, n = 70), lisdexamphetamine (k = 1, n = 25), mixed amphetamine salts (k = 1, n = 30), or modafinil (k = 2, n = 97). Three studies investigated cognition, four ADHD symptoms, and 10 the safety. Three studies found treatment-related ADHD symptom reduction: two involved methylphenidate and one amphetamine salts. One study found a trend towards pro-cognitive effects of modafinil on some cognitive domains. No increased risk of (hypo)mania was observed. Five studies had low risk of bias, eleven a moderate risk, and one a serious risk of bias. CONCLUSIONS: Methylphenidate or mixed amphetamine salts may improve ADHD symptoms in BD. However, there is limited evidence regarding the effectiveness on cognition. The medications produced no increased mania risk when used alongside mood stabilizers. Further robust studies are needed to assess cognition in BD patients receiving psychostimulant treatment alongside mood stabilizers.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Transtorno Bipolar , Estimulantes do Sistema Nervoso Central , Disfunção Cognitiva , Humanos , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtorno Bipolar/tratamento farmacológico , Disfunção Cognitiva/tratamento farmacológico , Disfunção Cognitiva/etiologia , Estimulantes do Sistema Nervoso Central/efeitos adversos , Estimulantes do Sistema Nervoso Central/uso terapêutico , Uso Off-Label , Metilfenidato/efeitos adversos , Metilfenidato/uso terapêutico
2.
Int Arch Occup Environ Health ; 96(1): 121-130, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35896841

RESUMO

OBJECTIVE: Cognitive impairment is a common complaint in prolonged work-related stress and may contribute to work disability. The objective was to evaluate the longitudinal impacts of objectively and subjectively measured cognitive impairment on occupational status and to evaluate the measurement's predictive properties regarding occupational prognosis in patients with work-related stress. METHODS: Patients with work-related stress (n = 82) were assessed with Danish versions of the Screen for Cognitive Impairment in Psychiatry (SCIP-D) and the Cognitive Failure Questionnaire (CFQ), as screeners of objective and subjective cognitive impairments, respectively. Patients were contacted via telephone at 6-month follow-up providing data on occupational status (employment vs. non-employment). Impacts of cognitive impairment on occupational status were evaluated using logistic regression analyses adjusting for other explanatory covariates (sociodemographic factors, comorbidities etc.). The predictive performance of SCIP-D and CFQ were evaluated using non-adjusted logistic regression analysis and receiver-operating-characteristics curves. RESULTS: There was a strong association between objective cognitive impairment measured with SCIP-D and non-employment when adjusting for other explanatory factors (OR adjusted 3.25, 95% CI 1.09-9.69). The association was attenuated but remained robust in the non-adjusted analysis (OR non-adjusted 1.74, 95% CI 1.08-2.81). Yet, a cut-score of SCIP-D performed inadequate as a sole predictor of occupational status. Subjective cognitive impairment was unrelated to subsequent occupational status. CONCLUSIONS: Objective-but not subjective-cognitive impairment was associated with subsequent non-employment. Our results suggest a predictive potential in objective measurements of cognitive impairment with significant implications for clinical assessment of patients with work-related stress.


Assuntos
Disfunção Cognitiva , Humanos , Seguimentos , Testes Neuropsicológicos , Disfunção Cognitiva/diagnóstico , Curva ROC
3.
Bipolar Disord ; 24(4): 354-374, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35174594

RESUMO

BACKGROUND: Cognitive impairments are an emerging treatment target in mood disorders, but currently there are no evidence-based pro-cognitive treatments indicated for patients in remission. With this systematic review of randomised controlled trials (RCTs), the International Society for Bipolar Disorders (ISBD) Targeting Cognition Task force provides an update of the most promising treatments and methodological recommendations. METHODS: The review included RCTs of candidate pro-cognitive interventions in fully or partially remitted patients with major depressive disorder or bipolar disorder. We followed the procedures of the Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) 2020 statement. Searches were conducted on PubMed/MEDLINE, PsycInfo, EMBASE and Cochrane Library from January 2015, when two prior systematic reviews were conducted, until February 2021. Two independent authors reviewed the studies with the Revised Cochrane Collaboration's Risk of Bias tool for Randomised trials. RESULTS: We identified 16 RCTs (N = 859) investigating cognitive remediation (CR; k = 6; N = 311), direct current or repetitive magnetic stimulation (k = 3; N = 127), or pharmacological interventions (k = 7; N = 421). CR showed most consistent cognitive benefits, with two trials showing improvements on primary outcomes. Neuromodulatory interventions revealed no clear efficacy. Among pharmacological interventions, modafinil and lurasidone showed early positive results. Sources of bias included small samples, lack of pre-screening for objective cognitive impairment, no primary outcome and no information on allocation sequence masking. CONCLUSIONS: Evidence for pro-cognitive treatments in mood disorders is emerging. Recommendations are to increase sample sizes, pre-screen for impairment in targeted domain(s), select one primary outcome, aid transfer to real-world functioning, investigate multimodal interventions and include neuroimaging.


Assuntos
Transtorno Bipolar , Disfunção Cognitiva , Transtorno Bipolar/psicologia , Transtorno Bipolar/terapia , Cognição , Disfunção Cognitiva/terapia , Humanos , Cloridrato de Lurasidona , Transtornos do Humor/etiologia , Transtornos do Humor/terapia
4.
Bipolar Disord ; 24(6): 615-636, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35950925

RESUMO

BACKGROUND: Developing treatments for cognitive impairment is key to improving the functioning of people with mood disorders. Neuroimaging may assist in identifying brain-based efficacy markers. This systematic review and position paper by the International Society for Bipolar Disorders Targeting Cognition Task Force examines the evidence from neuroimaging studies of pro-cognitive interventions. METHODS: We included magnetic resonance imaging (MRI) studies of candidate interventions in people with mood disorders or healthy individuals, following the procedures of the Preferred Reporting Items for Systematic reviews and Meta-Analysis 2020 statement. Searches were conducted on PubMed/MEDLINE, PsycInfo, EMBASE, Cochrane Library, and Clinicaltrials.gov from inception to 30th April 2021. Two independent authors reviewed the studies using the National Heart, Lung, Blood Institutes of Health Quality Assessment Tool for Controlled Intervention Studies and the quality of neuroimaging methodology assessment checklist. RESULTS: We identified 26 studies (N = 702). Six investigated cognitive remediation or pharmacological treatments in mood disorders (N = 190). In healthy individuals, 14 studies investigated pharmacological interventions (N = 319), 2 cognitive training (N = 73) and 4 neuromodulatory treatments (N = 120). Methodologies were mostly rated as 'fair'. 77% of studies investigated effects with task-based fMRI. Findings varied but most consistently involved treatment-associated cognitive control network (CCN) activity increases with cognitive improvements, or CCN activity decreases with no cognitive change, and increased functional connectivity. In mood disorders, treatment-related default mode network suppression occurred. CONCLUSIONS: Modulation of CCN and DMN activity is a putative efficacy biomarker. Methodological recommendations are to pre-declare intended analyses and use task-based fMRI, paradigms probing the CCN, longitudinal assessments, mock scanning, and out-of-scanner tests.


Assuntos
Transtorno Bipolar , Disfunção Cognitiva , Transtorno Bipolar/diagnóstico por imagem , Transtorno Bipolar/tratamento farmacológico , Cognição , Disfunção Cognitiva/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Transtornos do Humor/diagnóstico por imagem , Transtornos do Humor/tratamento farmacológico
5.
BMC Psychiatry ; 21(1): 494, 2021 10 09.
Artigo em Inglês | MEDLINE | ID: mdl-34627191

RESUMO

BACKGROUND: Cognitive dysfunction has been reported in acute psychiatric patients for a long time. The detection of cognitive deficits is crucial both for clinical treatment and for predicting the psychosocial functional level in the further course of the disease. The SCIP is a well-evaluated screening instrument for the examination of cognitive performance in psychiatric patients. We recently integrated the SCIP into our routine admission and discharge assessments on two inpatient wards, and we examined the cognitive profiles of patients with psychotic and affective disorders over the course of their admission. METHODS: Shortly after admission, and prior to discharge, patients were routinely referred for examination with the SCIP. A total of 529 assessments were completed on admission, and 227 returned for SCIP at the time of discharge. After standardization of the test results against a normative sample, we examined the normalized test values in terms of percentages of pathological cognitive performance based on the total SCIP score, and each of the SCIP subscale scores. We conducted cluster analysis to identify cognitive subgroups within the clinical sample. RESULTS: More than 70% of the SCIP results on admission were pathological. At discharge, improvements were observed, especially on tests with attention and speed components. Cluster analysis identified two groups. The cluster with chronic patients showed poorer results at admission, but greater improvement and reached the level of the others at discharge. CONCLUSIONS: The SCIP appears to have value in routine diagnostic assessments, and in the quantification of improvements in cognitive performance during an inpatient stay. The greatest benefit was observed in chronically ill patients with many previous stays. TRIAL REGISTRATION: DRKS00019825 (retrospectively registered on 03.12.2019).


Assuntos
Disfunção Cognitiva , Psiquiatria , Análise por Conglomerados , Disfunção Cognitiva/diagnóstico , Humanos , Pacientes Internados , Testes Neuropsicológicos
6.
Community Ment Health J ; 56(8): 1411-1418, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32076904

RESUMO

Cognitive impairments have profound implications for the management of severe mental disorders; however, they are rarely assessed in everyday clinical practice due to constraints in time, resource and expertise. Novel and short instruments, such as the Screen for Cognitive Impairment in Psychiatry (SCIP), which overcome such limitations are greatly needed. The study aims to assess the validity and reliability, among healthy subjects, of the Italian translation of the SCIP, a brief, accessible tool to detect cognitive impairments among individuals suffering from mental disorders, as the first step to validate the instrument in clinical settings. One-hundred and twenty healthy subjects completed two of the three alternative forms of the SCIP. Cronbach Alpha (0.70) supported the reliability of the SCIP scores. Correlation coefficients supported the test-retest reliability of the tool. Learning effects were observed despite the use of alternative forms. Factor analysis indicated a two-factor solution explaining 55.4% of the total variance: the first factor ("memory") loading for VLT-I and VLT-D and less for WMT; the second factor ("executive function") loading for VFT and PST and less for WMT. The study proved the validity and reliability of the Italian version of the SCIP as a reliable and simple instrument to screen for cognitive impairment in the general population.


Assuntos
Transtornos Cognitivos , Disfunção Cognitiva , Psiquiatria , Transtornos Cognitivos/diagnóstico , Disfunção Cognitiva/diagnóstico , Humanos , Itália , Testes Neuropsicológicos , Reprodutibilidade dos Testes
7.
Bipolar Disord ; 21(8): 686-719, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31491048

RESUMO

BACKGROUND: Impairments in affective cognition are part of the neurocognitive profile and possible treatment targets in bipolar disorder (BD), but the findings are heterogeneous. The International Society of Bipolar Disorder (ISBD) Targeting Cognition Task Force conducted a systematic review to (i) identify the most consistent findings in affective cognition in BD, and (ii) provide suggestions for affective cognitive domains for future study and meta-analyses. METHODS: The review included original studies reporting behavioral measures of affective cognition in BD patients vs controls following the procedures of the Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) statement. Searches were conducted on PubMed/MEDLINE, EMBASE, and PsychInfo from inception until November 2018. RESULTS: A total of 106 articles were included (of which nine included data for several affective domains); 41 studies assessed emotional face processing; 23 studies investigated reactivity to emotional words and images; 3 investigated explicit emotion regulation; 17 assessed implicit emotion regulation; 31 assessed reward processing and affective decision making. In general, findings were inconsistent. The most consistent findings were trait-related difficulties in facial emotion recognition and implicit emotion regulation, and impairments in reward processing and affective decision making during mood episodes. Studies using eye-tracking and facial emotion analysis revealed subtle trait-related abnormalities in emotional reactivity. CONCLUSION: The ISBD Task Force recommends facial expression recognition, implicit emotion regulation, and reward processing as domains for future research and meta-analyses. An important step to aid comparability between studies in the field would be to reach consensus on an affective cognition test battery for BD.


Assuntos
Transtorno Bipolar/psicologia , Cognição , Emoções , Adulto , Comitês Consultivos , Tomada de Decisões , Expressão Facial , Reconhecimento Facial , Feminino , Humanos , Masculino , Recompensa
8.
Int J Psychiatry Clin Pract ; 23(1): 49-56, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29553848

RESUMO

OBJECTIVE: To assess the relationship between the Screen for Cognitive Impairment in Psychiatry (SCIP) score and illness severity, subjective cognition and functioning in a cohort of major depressive disorder (MDD) patients. METHODS: Patients (n = 40) diagnosed with MDD (DSM-IV-TR) completed the SCIP, a brief neuropsychological test, and a battery of self-administered questionnaires evaluating functioning (GAF, SDS, WHODAS 2.0, EDEC, PDQ-D5). Disease severity was evaluated with the Hamilton Depression Rating Scale (HDRS) and the Clinical Global Impression (CGI). RESULTS: Age and sex were associated with performance in the SCIP. The SCIP-Global index score was associated with disease severity (r = -0.316, p < .05), the SDS, a patient self-assessment of daily functioning (r = -0.368, p < .05), and the EDEC subscales of patient-reported cognitive deficits (r = -0.388, p < .05) and their functional impacts (r = -0.335, p < .05). Multivariate analysis adjusted for age and sex confirmed these tests are independent predictors of performance in the SCIP (CGI-S, F[3,34] = 4.478, p = .009; SDS, F[3,34] = 3.365, p = .030; EDEC-perceived cognitive deficits, F[3,34] = 5.216, p = .005; EDEC-perceived impacts of functional impairment, F[3,34] = 5.154, p = .005). CONCLUSIONS: This study confirms that the SCIP can be used during routine clinical evaluation of MDD, and that cognitive deficits objectively assessed in the SCIP are associated with disease severity and self-reported cognitive dysfunction and impairment in daily life.


Assuntos
Disfunção Cognitiva/diagnóstico , Transtorno Depressivo Maior/diagnóstico , Escalas de Graduação Psiquiátrica/normas , Disfunção Cognitiva/etiologia , Transtorno Depressivo Maior/complicações , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Valor Preditivo dos Testes , Índice de Gravidade de Doença
9.
BMC Neurol ; 15: 61, 2015 Apr 23.
Artigo em Inglês | MEDLINE | ID: mdl-25899600

RESUMO

BACKGROUND: Decision-making is an essential function of everyday life. Decision-making under explicit risk requires developing advantageous decision strategies based on fixed outcomes (e.g., probabilities of winning or losing a bet). Decision-making and its neural substrates have been rarely studied in MS. We expected performance in decision-making under risk to be lowered in MS patients, and negatively correlated with disease-related disability, cognition, and ventricular width. METHODS: Three groups were included: 32 MS patients and 20 healthy controls were examined with conventional neuropsychological tests and the Game-of-Dice Task (GDT) assessing decision-making under explicit risk. Linear 2-D ventricular width was assessed on MS patients' clinical MRIs and compared to a third group, 20 non-MS neurological control patients. RESULTS: Compared to healthy controls, MS patients showed impaired GDT and neuropsychological performance, depending on the MS-subtype (relapsing-remitting (RR), n = 22; secondary progressive, n = 10) and disability severity among RR-MS patients. In MS patients, GDT performance correlated with processing speed, intercaudate ratio, and third ventricle ratio (p's < 0.05). Mediation analysis showed that the link between GDT performance and processing speed was fully explained by ventricular size. CONCLUSION: Decision-making under explicit risk was reduced in MS patients, but only those with more pronounced disability. Independent of processing speed, decision-making under explicit risk correlates inversely with central atrophy in MS.


Assuntos
Ventrículos Cerebrais/patologia , Tomada de Decisões/fisiologia , Esclerose Múltipla/patologia , Esclerose Múltipla/fisiopatologia , Assunção de Riscos , Análise e Desempenho de Tarefas , Adulto , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
10.
BMC Med Genet ; 15: 37, 2014 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-24674381

RESUMO

BACKGROUND: This research is a one-site neuroimaging component of a two-site genetic study involving patients with schizophrenia at early and later stages of illness. Studies support a role for the neuronal Per-Arnt-Sim 3 (NPAS3) gene in processes that are essential for normal brain development. Specific NPAS3 variants have been observed at an increased frequency in schizophrenia. In humans, NPAS3 protein was detected in the hippocampus from the first trimester of gestation. In addition, NPAS3 protein levels were reduced in the dorsolateral prefrontal cortex of some patients with schizophrenia. Npas3 knockout mice display behavioural, neuroanatomical and structural changes with associated severe reductions in neural precursor cell proliferation in the hippocampal dentate gyrus. This study will evaluate the hypothesis that the severe reductions in neural precursor cell proliferation in the dentate gyrus will be present to some degree in patients carrying schizophrenia-associated NPAS3 variants and less so in other patients. METHODS/DESIGN: Patients enrolled in the larger genetic study (n = 150) will be invited to participate in this neuroimaging arm. The genetic data will be used to ensure a sample size of 45 participants in each genetic subgroup of patients (with and without NPAS3 variants). In addition, we will recruit 60 healthy controls for acquisition of normative data. The following neuroimaging measures will be acquired from the medial temporal region: a) an index of the microcellular environment; b) a macro-structural volumetric measure of the hippocampus; and c) concentration levels of N-acetylaspartate, a marker of neuronal health. DISCUSSION: This study will help to establish the contribution of the NPAS3 gene and its variants to brain tissue abnormalities in schizophrenia. Given the genetic and phenotypic heterogeneity of the disorder and the large variation in outcomes, the identification of biological subgroups may in future support tailoring of treatment approaches in order to optimize recovery.


Assuntos
Proteínas do Tecido Nervoso/genética , Esquizofrenia/genética , Lobo Temporal/fisiopatologia , Fatores de Transcrição/genética , Fatores de Transcrição Hélice-Alça-Hélice Básicos , Análise Mutacional de DNA , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Estudos Multicêntricos como Assunto , Neuroimagem , Esquizofrenia/fisiopatologia
12.
Front Psychiatry ; 15: 1361086, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38435978

RESUMO

Introduction: Promising preliminary evidence suggests that EMDR may reduce suicidal ideation (SI) when used to treat Major Depressive Disorder, Posttraumatic Stress Disorder, and trauma symptoms in the context of acute mental health crises. EMDR has never been tested specifically for treating SI, and there is a lack of data regarding the safety and effectiveness of web-based, therapist-delivered EMDR in populations with known SI. The primary objective of this study was to investigate the impact of web-based, therapist-delivered EMDR, targeting experiences associated with suicidal thinking. Secondary objectives included examining the effect of EMDR treatment on symptoms of depression, anxiety, posttraumatic stress, emotional dysregulation, and dissociation, as well as safety and attrition. Methods: This randomized control trial (ClinicalTrials.gov ID number: NCT04181047) assigned adult outpatients reporting SI to either a web-based EMDR intervention or a treatment as usual (TAU) group. TAU included primary and mental health services available within the Canadian public health system. Participants in the EMDR group received up to 12 web-based EMDR desensitization sessions, delivered twice weekly during the COVID-19 pandemic (2021-2023). The Health Research Ethics Board at the University of Alberta approved the protocol prior to initiation of data collection for this study (protocol ID number: Pro00090989). Results: Forty-two adult outpatients received either EMDR (n=20) or TAU (n=22). Participants reported a high prevalence of early onset and chronic SI, and there was a high rate of psychiatric comorbidity. In the EMDR group, median SI, depression, anxiety, and posttraumatic symptom scale scores decreased from baseline to the four month follow-up. In the TAU group, only the median SI and posttraumatic symptom scale scores decreased from baseline to four month follow up. Although sample size precludes direct comparison, there were numerically fewer adverse events and fewer dropouts in the EMDR group relative to the TAU group. Conclusion: Study results provide promising preliminary evidence that web-based EMDR may be a viable delivery approach to address SI. In this complex population, a short treatment course was associated with reductions of SI and other symptoms across multiple diagnostic categories. Further investigation is warranted to verify and extend these results. Clinical Trial Registration: https://clinicaltrials.gov/study/NCT04181047?id=NCT04181047&rank=1, identifier NCT04181047.

13.
Artigo em Inglês | MEDLINE | ID: mdl-38794960

RESUMO

AIM: Cognitive impairments are a core feature of first-episode psychosis (FEP) and one of the strongest predictors of long-term psychosocial functioning. Cognition should be assessed and treated as part of routine clinical care for FEP. Cognitive screening offers the opportunity to rapidly identify and triage those in most need of cognitive support. However, there are currently no validated screening measures for young people with FEP. CogScreen is a hybrid effectiveness-implementation study which aims to evaluate the classification accuracy (relative to a neuropsychological assessment as a reference standard), test-retest reliability and acceptability of two cognitive screening tools in young people with FEP. METHODS: Participants will be 350 young people (aged 12-25) attending primary and specialist FEP treatment centres in three large metropolitan cities (Adelaide, Sydney, and Melbourne) in Australia. All participants will complete a cross-sectional assessment over two sessions including two cognitive screening tools (Screen for Cognitive Impairment in Psychiatry and Montreal Cognitive Assessment), a comprehensive neuropsychological assessment battery, psychiatric and neurodevelopmental assessments, and other supplementary clinical measures. To determine the test-retest reliability of the cognitive screening tools, a subset of 120 participants will repeat the screening measures two weeks later. RESULTS: The protocol, rationale, and hypotheses for CogScreen are presented. CONCLUSIONS: CogScreen will provide empirical evidence for the validity and reliability of two cognitive screening tools when compared to a comprehensive neuropsychological assessment. The screening measures may later be incorporated into clinical practice to assist with rapid identification and treatment of cognitive deficits commonly experienced by young people with FEP.

14.
Magn Reson Med ; 69(3): 613-20, 2013 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-22511463

RESUMO

Different lines of evidence suggest an abnormal cerebral energy metabolism as being critical to the pathophysiology of schizophrenia. However, it is unknown as to whether levels of creatine (Cr) would be involved in these anomalies. The study involved 33 unmedicated first episode psychosis patients and 41 healthy controls. Proton magnetic resonance spectroscopy ((1) H-MRS) was performed at 3 T using a long TE (TE/TM/TR of 240/27/3000 ms) such that within the total phosphocreatine (PCr) plus Cr signal (tCr(240)), mainly Cr was detectable. The target region was an 18 cm(3) prefrontal volume. A negative association was found between age of patients and tCr(240) levels referenced to internal water, with 20% of the variance in tCr(240) accounted for by Age. A secondary finding revealed 16% reduction of tCr(240) levels in patients, solely when comparing participants older than the median age of patients. No association existed between tCr(240) levels and clinical variables. These findings support previous data reporting abnormalities in brain creatine kinase isoenzymes involved with the maintenance of energy pools in schizophrenia. The implications of using a long TE are discussed in terms of the relative proportions of Cr and PCr within the tCr(240) signal, and of potential group differences in T(2) times.


Assuntos
Encéfalo/metabolismo , Creatina/análise , Espectroscopia de Ressonância Magnética/métodos , Transtornos Psicóticos/diagnóstico , Transtornos Psicóticos/metabolismo , Adolescente , Adulto , Antipsicóticos/uso terapêutico , Biomarcadores/análise , Feminino , Humanos , Masculino , Prótons , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Adulto Jovem
15.
BMC Psychiatry ; 13: 127, 2013 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-23648193

RESUMO

BACKGROUND: The Screen for Cognitive Impairment in Psychiatry (SCIP) is a simple and easy to administer scale developed for screening cognitive deficits. This study presents the diagnostic-specific standardization data for this scale in a sample of schizophrenia and bipolar I disorder patients. METHODS: Patients between 18 and 55 years who are in a stable phase of the disease, diagnosed with schizophrenia, schizoaffective disorder, schizophreniform disorder, or bipolar I disorder were enrolled in this study. RESULTS: The SCIP-S was administered to 514 patients (57.9% male), divided into two age groups (18-39 and 40-55 years) and two educational level groups (less than and secondary or higher education). The performance of the patients on the SCIP-S is described and the transformed scores for each SCIP-S subtest, as well as the total score on the instrument, are presented as a percentile, z-score, T-scores, and IQ quotient. CONCLUSIONS: We present the first jointly developed benchmarks for a cognitive screening test exploring functional psychosis (schizophrenia and bipolar disorder), which provide increased information about patient's cognitive abilities. Having guidelines for interpreting SCIP-S scores represents a step forward in the clinical utility of this instrument and adds valuable information for its use.


Assuntos
Transtorno Bipolar/complicações , Transtornos Cognitivos/diagnóstico , Cognição , Escalas de Graduação Psiquiátrica , Transtornos Psicóticos/complicações , Esquizofrenia/complicações , Adolescente , Adulto , Transtornos Cognitivos/complicações , Feminino , Humanos , Idioma , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Psiquiatria , Reprodutibilidade dos Testes , Adulto Jovem
16.
Schizophr Res Cogn ; 29: 100259, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35692619

RESUMO

Background: Psychiatric disorders, especially schizophrenia, are characterised by cognitive impairment. The rapid detection of cognitive dysfunction - also in the course of the disease - is of great importance. The Screen for Cognitive Impairment in Psychiatry (SCIP) was developed to provide screening of psychiatric patients in clinical practice and is available in several languages. Prior psychometric investigations into the dimensionality of the SCIP have produced two different models: a one-factor model assumes that the five subscales of the SCIP load together, whereas an alternative model suggests that the subscales load on two factors, namely verbal memory and processing speed. We carried out a confirmatory factor analysis of the German version of the SCIP (SCIP-G). Methods: 323 patients with psychotic, bipolar affective, and depressive disorders were studied. Results: The one-factor approach did not yield an acceptable model fit (chi-squared test: χ2 = 109.5, df = 5, p < 0.001, χ2/df = 21.9). A two-factor solution, with the subtests Verbal Learning Test-Immediate Recall, Delayed Recall Test of the VLT, and Working Memory Test loading on the first factor, whereas the subtests Verbal Fluency Test and Psychomotor Speed Test loading on the second factor, obtained a good model fit (χ2 = 6.7, df = 3, p = 0.08, χ2/df = 2.2). Conclusions: These data show that a good model fit can be achieved with a two-factor solution for the SCIP. This study is the first to conduct a confirmatory factor analysis using the German SCIP version and to test its dimensional structure using a hypothesis-testing approach.

17.
Early Interv Psychiatry ; 16(4): 402-409, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34018692

RESUMO

AIM: There are international efforts to implement developmentally appropriate and youth-oriented mental health services for emerging adults to increase treatment engagement and the success of early intervention. While significant progress has been made in developing community service models, limited research has focused on how to design psychiatric inpatient settings that promote the recovery of emerging adults. The present study attempts to address this knowledge gap through a qualitative exploration of hospital experiences that influence psychological need satisfaction and frustration, as defined by self-determination theory (SDT). METHODS: Inpatients (N = 104) from an emerging adult psychiatry unit were interviewed regarding hospital experiences that related to satisfaction or frustration of SDT needs for autonomy, competence, and relatedness. RESULTS: A basic interpretative qualitative analysis highlighted six key aspects of the hospital experience relevant to these needs: (a) social interactions, (b) freedom of behaviour and access, (c) programs and activities, (d) treatment collaboration and choice, (e) restraining/unpleasant hospital practices, and (f) progress, symptoms, and functioning. The findings support SDT's emphasis on the importance of autonomy support, structure, and involvement for need satisfaction. CONCLUSIONS: The study sheds light on aspects of the hospital milieu that may be essential to recovery-oriented inpatient care and on experiences that may be distinctly important for emerging adults, such as support for independence and the opportunity to relate to same-age co-patients experiencing similar mental health problems and life circumstances.


Assuntos
Hospitais Psiquiátricos , Serviços de Saúde Mental , Adolescente , Adulto , Humanos , Autonomia Pessoal , Satisfação Pessoal , Teoria Psicológica
18.
Scand J Work Environ Health ; 48(1): 71-80, 2022 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-34580738

RESUMO

OBJECTIVE: Many patients with work-related stress display cognitive impairment that may hamper recovery. We examined objective and subjective tools for screening of cognitive impairment in this patient group. METHODS: Patients were assessed with Danish versions of the objective Screen for Cognitive Impairment in Psychiatry (SCIP-D), standardized neuropsychological tests that tapped into the same cognitive domains, the self-assessed Cognitive Failure Questionnaire (CFQ), and several additional scales of symptom severity and psychosocial status. Concurrent validity of the SCIP-D and CFQ was assessed by calculation of Pearson's correlation coefficients between the objective and subjective tools and the scores on more conventional standardized neuropsychological tests. Decision validity was assessed with logistic receiver-operating-characteristic analyses using a cut-score approach to the objective and the subjective test results to predict impairment detected by the standardized tests. Cognitive norms were established through the data of 79 healthy controls. SCIP-D scores were compared between patients and healthy controls with independent t-tests. RESULTS: We included 82 patients with work-related stress. The SCIP-D total scores were strongly associated with standardized neuropsychological tests (r=0.76, P<0.001). The self-assessed CFQ was not associated with either measure of objective cognitive functioning (r≤0.12, P≥0.30). The optimal SCIP-D total-score cut of ≤72 identified 43.2% of the patients with global objective cognitive impairment. The patients performed mildly-to.moderately lower than the healthy controls on the SCIP-D total score (Cohen's d=0.39) and the subtests for working memory (d=0.39) and processing speed (d=0.61). CONCLUSION: The SCIP-D is a valid screening tool sensitive to objective performance-based cognitive impairment among patients with work-related stress.


Assuntos
Disfunção Cognitiva , Estresse Ocupacional , Disfunção Cognitiva/diagnóstico , Dinamarca , Humanos , Testes Neuropsicológicos , Autorrelato
19.
Personal Ment Health ; 16(4): 279-289, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35146968

RESUMO

Cognitive deficits are common in borderline personality disorder (BPD) and appear to be associated with psychopathology, functioning and outcome. The availability of a cognitive screening instrument could be of use in clinical settings in order to assess neurocognition in BPD patients. The Screen for Cognitive Impairment for Psychiatry (SCIP) proved to be reliable in different psychiatric populations, but it has not yet been validated in personality disorders. The purpose of this study is therefore to evaluate its psychometric properties in a sample of 58 BPD patients. The SCIP was validated against the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) and the Trail Making Test A and B (TMT A and B). The receiver operator curve analysis displayed an acceptable convergent validity (total score AUC: 0.78, 95% CI: 0.70-0.86; Se: 75%, Sp: 72%). A cut-off total score of 80 identified 81% of patients as cognitively impaired. The exploratory factor analysis displayed a one-factor solution explaining 55.8% of the total variance. The SCIP displayed adequate psychometric properties in BPD and could be integrated in the routine clinical assessment to provide a preliminary evaluation of cognitive features for BPD.


Assuntos
Transtorno da Personalidade Borderline , Disfunção Cognitiva , Psiquiatria , Humanos , Transtorno da Personalidade Borderline/complicações , Transtorno da Personalidade Borderline/diagnóstico , Reprodutibilidade dos Testes , Psicometria , Disfunção Cognitiva/diagnóstico , Testes Neuropsicológicos
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