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OBJECTIVE: The current cross-sectional study examined cognition and performance-based functional abilities in a continuing care senior housing community (CCSHC) that is comparable to other CCSHCs in the US with respect to residents' demographic characteristics. METHOD: Participants were 110 older adult residents of the independent living unit. We assessed sociodemographics, mental health, neurocognitive functioning, and functional capacity. RESULTS: Compared to normative samples, participants performed at or above expectations in terms of premorbid functioning, attention span and working memory, processing speed, timed set-shifting, inhibitory control, and confrontation naming. They performed below expectation in verbal fluency and verbal and visual learning and memory, with impairment rates [31.4% (>1 SD below the mean) and 18.49% (>1.5 SD below the mean)] well above the general population (16% and 7%, respectively). Within the cognitive test battery, two tests of delayed memory were most predictive of a global deficit score. Most cognitive test scores correlated with performance-based functional capacity. CONCLUSIONS: Overall, results suggest that a subset of older adults in the independent living sector of CCSHCs are cognitively and functionally impaired and are at risk for future dementia. Results also argue for the inclusion of memory tests in abbreviated screening batteries in this population. We suggest that CCSHCs implement regular cognitive screening procedures to identify and triage those older adults who could benefit from interventions and, potentially, a transition to a higher level of care.
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Disfunción Cognitiva , Vivienda , Actividades Cotidianas , Anciano , Cognición , Disfunción Cognitiva/epidemiología , Estudios Transversales , Humanos , Pruebas NeuropsicológicasRESUMEN
OBJECTIVE: To examine the relationship between neuropsychological functioning and performance-based functional capacity in veterans with a history of mild traumatic brain injury (mTBI), as well as the moderating effects of age and psychiatric symptoms on this relationship. SETTING: Three Veterans Affairs medical centers. PARTICIPANTS: One hundred nineteen Iraq/Afghanistan veterans with a history of mTBI and self-reported cognitive difficulties. DESIGN: Cross-sectional, secondary data analysis of baseline measures in a randomized controlled trial. MAIN MEASURES: The main outcome measure, functional capacity, was assessed using the objective and performance-based University of California San Diego Performance-based Skills Assessment-Brief. A global deficit score (GDS) was created as a composite score for performance on a battery of neuropsychological measures assessing domains of attention, processing speed, executive functioning, and verbal memory performance. Posttraumatic stress disorder (PTSD) symptom severity was assessed using the PTSD Checklist-Military Version, and depressive symptom severity was assessed using the Beck Depression Inventory, Second Edition. RESULTS: Bivariate analyses indicated that worse neuropsychological performance (ie, higher GDS) and greater PTSD symptom severity were associated with worse communication abilities and worse overall functional capacity. Multiple linear regressions demonstrated that GDS and PTSD symptom severity explained 9% of the variance in communication and 10% of the variance in overall functional capacity; however, GDS emerged as the only significant predictor in both regressions. Age, PTSD, and depressive symptom severity did not moderate the relationship between GDS and overall functional capacity. Performance in the verbal learning and memory domain emerged as the strongest neuropsychological predictor of communication and overall functional capacity. CONCLUSIONS: Worse neuropsychological functioning was moderately associated with worse performance-based functional capacity, even when accounting for PTSD symptom severity. Verbal learning and memory was the primary neuropsychological domain driving the relationship with functional capacity; improvement in verbal learning and memory may translate into improved functional capacity.
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Conmoción Encefálica , Trastornos por Estrés Postraumático , Veteranos , Humanos , Veteranos/psicología , Conmoción Encefálica/complicaciones , Conmoción Encefálica/diagnóstico , Guerra de Irak 2003-2011 , Campaña Afgana 2001- , Estudios Transversales , Trastornos por Estrés Postraumático/complicaciones , Pruebas NeuropsicológicasRESUMEN
We investigated subjective cognitive complaints (SCCs), as well as physical and mental health factors, in adults and older adults. U.S. residents (N = 2,962) were recruited via the Amazon Mechanical Turk platform and completed a 90-item survey. Overall, 493/1930 (25.5%) of younger adults and 278/1032 (26.9%) of older adults endorsed SCCs. Analyses revealed worse physical and mental health characteristics in the SCC+ compared to the SCC- group, with primarily medium (Cohen's d = 0.50) to large (0.80) effect sizes. Age did not moderate relationships between SCCs and physical/mental health. Results suggest that SCCs are associated with a diverse set of negative health characteristics such as poor sleep and high body mass index, and lower levels of positive factors, including happiness and wisdom. Effect sizes of psychological correlates were at least as large as those of physical correlates, indicating that mental health is critical to consider when evaluating SCCs.
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Cognición , Salud Mental , Anciano , Humanos , Encuestas y CuestionariosRESUMEN
OBJECTIVE: The purpose of this study was to determine modifiable predictors of intervention adherence in a study of group-based Compensatory Cognitive Training (CCT) for Iraq/Afghanistan War veterans with a history of mild traumatic brain injury (mTBI). METHODS: One hundred twenty-three veterans enrolled in a randomized controlled trial of a 10-week CCT intervention (54 assigned to CCT) and were evaluated at baseline, 5 weeks, 10 weeks, and 15 weeks. CCT adherence was determined by the number of CCT sessions attended, with more sessions indicative of greater adherence. Baseline demographic and clinical characteristics, and subjective and objective neuropsychological performance, were examined in relation to CCT session attendance. RESULTS: Older age and worse attention performance at baseline were associated with higher CCT attendance rates. CONCLUSIONS: This study generates preliminary evidence for potential modifiable neuropsychological factors that may improve engagement in CCT interventions.
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Conmoción Encefálica , Trastornos por Estrés Postraumático , Veteranos , Campaña Afgana 2001- , Anciano , Conmoción Encefálica/terapia , Cognición , Humanos , Guerra de Irak 2003-2011 , Pruebas NeuropsicológicasRESUMEN
OBJECTIVE: Rapid eye movement sleep behavior disorder (RBD) affects 33-46% of patients with Parkinson's disease (PD) and may be a risk factor for neuropsychological and functional deficits. However, the role of RBD on neuropsychological functioning in PD has yet to be fully determined. We, therefore, examined differences in neurocognitive performance, functional capacity, and psychiatric symptoms among nondemented PD patients with probable RBD (PD/pRBD+) and without (PD/pRBD-), and healthy comparison participants (HC). METHODS: Totally, 172 participants (58 PD/pRBD+; 65 PD/pRBD-; 49 HC) completed an RBD sleep questionnaire, psychiatric/clinical questionnaires, performance-based and self-reported functional capacity measures, and underwent a comprehensive neuropsychological battery assessing attention/working memory, language, visuospatial function, verbal and visual learning and memory, and executive function. RESULTS: Controlling for psychiatric symptom severity, the PD/pRBD+ group had poorer executive functioning and learning performance than the PD/pRBD- group and poorer neuropsychological functioning across all individual cognitive domains than the HCs. In contrast, PD/pRBD- patients had significantly lower scores than HCs only in the language domain. Moreover, PD/pRBD+ patients demonstrated significantly poorer medication management skills compared to HCs. Both PD groups reported greater depressive and anxiety severity compared to HCs; PD/pRBD+ group also endorsed greater severity of apathy compared to HCs. CONCLUSIONS: The presence of pRBD is associated with poorer neuropsychological functioning in PD such that PD patients with pRBD have poorer cognitive, functional, and emotional outcomes compared to HC participants and/or PD patients without pRBD. Our findings underscore the importance of RBD assessment for improved detection and treatment of neuropsychological deficits (e.g., targeted cognitive interventions).
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Disfunción Cognitiva/fisiopatología , Enfermedad de Parkinson/psicología , Trastorno de la Conducta del Sueño REM/fisiopatología , Anciano , Atención , Cognición , Función Ejecutiva , Femenino , Humanos , Lenguaje , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Enfermedad de Parkinson/complicaciones , Enfermedad de Parkinson/fisiopatología , Trastorno de la Conducta del Sueño REM/complicaciones , Trastorno de la Conducta del Sueño REM/diagnóstico , Factores de Riesgo , Encuestas y CuestionariosRESUMEN
OBJECTIVES: People living with HIV (PLWH) are more likely to report sleep difficulties and cognitive deficits. While cognitive impairment associated with sleep problems have been found in healthy and medical populations, less is known about the effects of poor sleep health (SH) on cognition among PLWH. This study examined differences in cognitive performance among participants classified based upon their HIV status and reported SH. METHODS: One hundred sixteen (N=116) adults recruited from the Greater Los Angeles community were administered a comprehensive cognitive test battery and completed a questionnaire about SH. Participants were classified into the following HIV/SH groups: [HIV+/good sleep health (SH+; n=34); HIV-/SH+ (n=32); HIV-/poor sleep health (SH-; n=18) and HIV+/SH- (n=32)]. RESULTS: For both HIV+ and HIV- individuals, poor SH was associated with lower cognitive performance, with the domains of learning and memory driving the overall relationship. The HIV+/SH- group had poorer scores in domains of learning and memory compared to the SH+ groups. Additionally, the HIV-/SH- group demonstrated poorer learning compared to the HIV-/SH+ group. CONCLUSIONS: Our findings suggest that sleep problems within medical populations are relevant to cognitive functioning, highlighting the clinical and scientific importance of monitoring sleep health and cognition to help identify individuals at greatest risk of poor health outcomes. Longitudinal investigations using both objective and subjective measures of sleep are needed to determine the robustness of the current findings and the enduring effects of poor SH in the context of chronic disease. (JINS, 2018, 24, 1038-1046).
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Cognición , Seronegatividad para VIH , Seropositividad para VIH/psicología , Sueño , Adulto , Disfunción Cognitiva , Femenino , Seropositividad para VIH/complicaciones , Seropositividad para VIH/inmunología , Estado de Salud , Humanos , Aprendizaje , Masculino , Memoria , Persona de Mediana Edad , Pruebas Neuropsicológicas , Trastornos del Sueño-Vigilia/etiología , Trastornos del Sueño-Vigilia/psicología , Factores Socioeconómicos , Encuestas y CuestionariosRESUMEN
INTRODUCTION: The translocase of outer mitochondrial membrane 40 (TOMM40), which lies in linkage disequilibrium with apolipoprotein E (APOE), has received attention more recently as a promising gene in Alzheimer's disease (AD) risk. TOMM40 influences AD pathology through mitochondrial neurotoxicity, and the medial temporal lobe (MTL) is the most likely brain region for identifying early manifestations of AD-related morphology changes. METHODS: In this study, we examined the effects of TOMM40 using high-resolution magnetic resonance imaging in 65 healthy, older subjects with and without the APOE ε4 AD-risk variant. RESULTS: Examining individual subregions within the MTL, we found a significant relationship between increasing poly-T lengths of the TOMM40 variant and thickness of the entorhinal cortex only in subjects who did not carry the APOE ε4 allele. DISCUSSION: Our data provide support for TOMM40 variant repeat length as an important contributor to AD-like MTL pathology in the absence of APOE ε4.
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Apolipoproteína E4/genética , Hipocampo/patología , Proteínas de Transporte de Membrana/genética , Anciano , Enfermedad de Alzheimer/genética , Corteza Entorrinal/patología , Femenino , Genotipo , Voluntarios Sanos , Humanos , Desequilibrio de Ligamiento , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Proteínas del Complejo de Importación de Proteínas Precursoras Mitocondriales , Lóbulo Temporal/patologíaRESUMEN
The current study examined the independent and combined effects of HIV and marijuana (MJ) use (no use, light use, and moderate-to-heavy use) on neurocognitive functioning among a convenience sample of HIV-positive (HIV+) and HIV-negative (HIV-) individuals recruited from HIV community care clinics and advertisements in the Greater Los Angeles area. MJ users consisted of individuals who reported regular use of MJ for at least 12 months, with last reported use within the past month. Participants included 89 HIV+ (n = 55) and HIV- (n = 34) individuals who were grouped into non-users, light users, and moderate-to-heavy users based on self-reported MJ use. Participants were administered a brief cognitive test battery and underwent laboratory testing for CD4 count and viral load. HIV+ individuals demonstrated lower performance on neurocognitive testing than controls, and moderate-to-heavy MJ users performed more poorly on neurocognitive testing than light users or non-users. Moderate-to-heavy HIV+ users performed significantly lower on learning/memory than HIV- moderate-to-heavy users (MD = -8.34; 95% CI: -16.11 to -0.56) as well as all other comparison groups. In the domain of verbal fluency, HIV+ light users outperformed HIV- light users (MD = 7.28; 95% CI: 1.62-12.39), but no HIV group differences were observed at other MJ use levels. HIV+ MJ users demonstrated lower viral load (MD = -0.58; 95% CI: -1.30 to 0.14) and higher CD4 count than non-users (MD = 137.67; 95% CI: 9.48-265.85). The current study findings extend the literature by demonstrating the complex relationship between HIV status and MJ use on neurocognitive and clinical outcomes.
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Disfunción Cognitiva/inducido químicamente , Disfunción Cognitiva/fisiopatología , Infecciones por VIH/fisiopatología , Seronegatividad para VIH , Abuso de Marihuana/complicaciones , Memoria a Corto Plazo/efectos de los fármacos , Adulto , Cannabis , Cognición/efectos de los fármacos , Disfunción Cognitiva/complicaciones , Disfunción Cognitiva/inmunología , Función Ejecutiva/efectos de los fármacos , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/inmunología , Humanos , Los Angeles , Masculino , Fumar Marihuana/efectos adversos , Persona de Mediana Edad , Carga ViralRESUMEN
STUDY OBJECTIVES: People living with schizophrenia (PLWS) have increased physical comorbidities and premature mortality which may be linked to dysregulated rest-activity rhythms (RARs). This study aimed to compare RARs between PLWS and nonpsychiatric comparison participants (NCs) and to examine the relationships of RARs with age, sleep, metabolic, and physical health outcomes and, among PLWS, relationships of RARs with illness-related factors. METHODS: The study sample included 26 PLWS and 36 NCs, assessed with wrist-worn actigraphy to compute RAR variables and general sleep variables. Participants completed assessments for clinical symptoms, physical health, sleep quality, medication use, and assays for fasting glycosylated hemoglobin (hemoglobin A1c) levels. We examined group differences in RAR and sleep variables, relationships of RAR variables with metabolic and physical health measures, and, among PLWS, relationships between RAR variables and illness-related measures. RESULTS: PLWS had significantly shorter active periods, lower relative amplitude, and lower mean activity during their most active 10 hours compared to the NCs (Cohen's d = 0.79, 0.58, and 0.62, respectively). PLWS had poorer sleep quality, greater mean percent sleep, less wake after sleep onset, and higher total sleep time variability compared to NCs. PLWS had higher rates of antidepressant, anxiolytic, and antipsychotic medication use compared to NCs, which may have impacted sleep quality and objective sleep measures. Across both groups, more fragmented and variable RARs were associated with higher HbA1c levels (ηp2 = .10) and worse physical health (ηp2 = .21). Among PLWS, RARs were correlated with total sleep time (rs = .789, P < .01) and percent sleep (rs = .509, P < .05), but not with age, sleep quality, or other illness-related factors. CONCLUSIONS: RARs provide unique information about sleep and activity for PLWS and have the potential for targeted interventions to improve metabolic health and mortality. CITATION: Mahmood Z, Ramsey A, Kidambi N, et al. Rest-activity rhythm disruption and metabolic health in schizophrenia: a cross-sectional actigraphy study of community-dwelling people living with schizophrenia and nonpsychiatric comparison participants. J Clin Sleep Med. 2024;20(9):1505-1516.
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Actigrafía , Vida Independiente , Esquizofrenia , Humanos , Estudios Transversales , Esquizofrenia/fisiopatología , Esquizofrenia/tratamiento farmacológico , Masculino , Femenino , Actigrafía/estadística & datos numéricos , Persona de Mediana Edad , Vida Independiente/estadística & datos numéricos , Adulto , Hemoglobina Glucada/análisis , Descanso/fisiología , Calidad del Sueño , Trastornos del Sueño-Vigilia/epidemiologíaRESUMEN
OBJECTIVE: Prior work has demonstrated that women have been historically underrepresented across various research fields, including neuropsychology. Given these disparities, the goal of this study was to systematically evaluate the inclusion of women as participants in neuropsychology research. The current study builds upon previous research by examining articles from eight peer-reviewed neuropsychology journals published in 2019. METHOD: Empirical articles examining human samples were included in the current review if they were available in English. Eligible articles were examined to glean whether the main topic of the article was related to a gender issue, how gender was categorized, the gender distribution of the sample, whether gender was considered in analyses, whether gender was addressed in the discussion, and what age categories the study examined. RESULTS: There was a relatively even distribution of men (51.76%) and women (48.24%) in neuropsychological research studies reviewed. There were twice as many studies that included only men compared to only women (16 vs. 8 studies), and nearly twice as many studies consisted of ≥ 75% men (16.6%) compared to ≥75% of women (8.5%). Gender-focused research was limited (3%). Furthermore, gender was frequently disregarded in analyses (58%) and often not addressed in the discussion (75%). CONCLUSIONS: The current study highlights the limitations within neuropsychology related to the representation of women in research. Although it is encouraging that neuropsychological research is generally inclusive of women participants, future research should aim to more comprehensively investigate how gender may influence cognitive risk and resilience factors across different clinical presentations. Recommendations to begin addressing this challenge and to move toward more gender-equitable research are provided.
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COVID-19 , Neuropsicología , Humanos , Femenino , Masculino , Investigación BiomédicaRESUMEN
Objective: Parental and other caregiving leave is important to postdoctoral fellows, yet there is no field-wide recommendation for leave policies among clinical neuropsychology postdoctoral training programs, which is of particular relevance given the two-year requirement for eligibility for board certification. The aims of this manuscript are to (a) discuss general guidelines and recommendations for leave policies, both informed by prior empirical evidence as well as relevant existing policy guidelines from various academic and healthcare organizations, and (b) use vignettes to provide possible solutions for potential leave scenarios. Method: A critical review of literature on family leave from public policy and political science, industrial-organizational psychology, academic medicine, and psychology was conducted and findings were synthesized. Results and Conclusions: Fellowship training programs are encouraged to adopt a competency-based model that permits flexibility in leave during training without necessarily requiring an extended end date. Programs should adopt clear policies and make this information readily available to trainees and think flexibly about training options that best meet the training needs and goals of each individual. We also encourage neuropsychologists at all levels to engage in advocacy for broader systemic supports of trainees seeking equitable family leave.
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Comités Consultivos , Neuropsicología , Humanos , Femenino , Neuropsicología/métodos , Formación Posdoctoral , Encuestas y Cuestionarios , Pruebas Neuropsicológicas , Absentismo FamiliarRESUMEN
BACKGROUND AND OBJECTIVE: In individuals experiencing homelessness, determinants of functional capacity (i.e. the ability to perform activities of daily living) are poorly understood. Identifying potentially modifiable correlates of functional capacity, such as cognitive abilities, may inform treatment targets to address independence and housing stability. This study aimed to identify the strongest neuropsychological predictors of variance in functional performance in 100 adults living in a homeless shelter. METHODS: Participants completed a brief cognitive screening test, from which four composite scores were derived, as well as tests of processing speed, fluid reasoning, premorbid intellectual function, and performance-based functional capacity. We conducted a hierarchical linear regression to predict variance in functional capacity. RESULTS: Beyond the impact of education and premorbid intellectual function, better memory and fluid reasoning predicted better functional performance. CONCLUSIONS: Although our cross-sectional design does not permit causal inference, it is possible that interventions targeting memory and fluid reasoning may improve functional ability in individuals experiencing homelessness.
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Actividades Cotidianas , Personas con Mala Vivienda , Humanos , Adulto , Actividades Cotidianas/psicología , Pruebas Neuropsicológicas , Estudios Transversales , CogniciónRESUMEN
OBJECTIVE: Rapid Eye Movement Sleep Behavior Disorder (RBD) is common in Parkinson's Disease (PD) and is associated with cognitive impairment; however, the majority of the evidence on the impact of RBD on multidomain cognitive batteries in PD is cross-sectional. This study evaluated the longitudinal impact of probable RBD (pRBD) on cognitive, psychiatric, and functional outcomes in people with PD. METHOD: Case-control study. A total of 65 people with PD completed the study protocol at baseline and 16-to-47-month follow-up. Participants were classified as pRBD+ (n = 25) or pRBD- (n = 40) based on an established cutoff of 6 on the RBD Sleep Questionnaire (RBDSQ). Participants also completed a) comprehensive cognitive testing, b) self-report measures of depression, anxiety, and apathy, and c) performance-based and other-report forms of instrumental activities of daily living. RESULTS: Baseline mean age was 67.8 (SD = 8.1; range = 45-86) and baseline mean years of education was 16.4 (SD = 2.1; range = 12-20). The two groups did not differ on measured demographic characteristics. Baseline mean T-scores for cognitive tests were in the average range (46-55). Hierarchical linear models tested group differences in cognitive and functional decline from baseline to follow-up, controlling for appropriate demographic and psychiatric variables. Compared to the pRBD- group, pRBD+ participants showed greater decline in attention/working memory (r = -0.31; p = 0.01) and UPSA financial skills (r = -0.31; p = 0.01). No other group differences approached significance. CONCLUSIONS: RBD may differentially affect attention/working memory and financial abilities in PD. Results underscore the importance of regular RBD screening in older adults with PD in order to triage symptomatic patients to appropriate cognitive and medical interventions.
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Enfermedad de Parkinson , Trastorno de la Conducta del Sueño REM , Actividades Cotidianas , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Cognición , Estudios Transversales , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Pruebas Neuropsicológicas , Enfermedad de Parkinson/complicaciones , Trastorno de la Conducta del Sueño REM/complicacionesRESUMEN
Individuals with schizophrenia who have high negative symptoms are at high risk for poor functional outcomes. However, the determinants of psychosocial functioning in this group are not well understood. We aimed to examine modifiable predictors of both objective, performance-based functional capacity and social skills, and self-reported functioning in individuals with schizophrenia and schizoaffective disorder and high negative symptoms. Fifty-five adults with moderate-to-severe negative symptoms were administered measures of neuropsychological performance, performance-based functional capacity and social competence, self-reported functioning, psychiatric symptom severity, defeatist/asocial beliefs, and intrinsic motivation. In the context of multiple significant predictor variables identified through bivariate correlations, multiple regression models showed that neuropsychological performance was the only significant predictor of performance-based functional capacity; neuropsychological performance and motivation/pleasure negative symptoms were significant predictors of performance-based social competence. For two different measures of self-reported functioning, intrinsic motivation, asocial beliefs, and diminished expression emerged as significant predictors. Neurocognitive ability was a better predictor of performance-based functional skills whereas motivation and beliefs more strongly predicted self-reported real-world functioning. The findings of this study suggest a complex picture of predictors of performance-based functional capacity (objective neuropsychological functioning) and self-reported functioning (motivation and beliefs), underscoring the clinical and scientific utility of including both self-reported and objective measures of functioning to identify treatment approach. Individuals with high negative symptoms and a cognitive/functional skills deficit may benefit from interventions such as cognitive remediation or skills training, whereas individuals with motivational difficulties may benefit from treatments such as cognitive behavioral therapy.
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Trastornos Psicóticos , Esquizofrenia , Adulto , Humanos , Pruebas Neuropsicológicas , Trastornos Psicóticos/psicología , Psicología del Esquizofrénico , AutoinformeRESUMEN
OBJECTIVE: Negative symptoms and cognitive impairment in schizophrenia (SZ) remain unmet treatment needs as they are highly prevalent, associated with poor functional outcomes, and resistant to pharmacologic treatment. The current pilot randomized controlled trial examined the efficacy of an integrated Cognitive-Behavioral Social Skills Training and Compensatory Cognitive Training (CBSST-CCT) intervention compared to Goal-focused Supportive Contact (SC) on negative symptoms and cognitive performance. METHODS: Fifty-five adults with SZ or schizoaffective disorder with moderate-to-severe negative symptoms were randomized to receive 25 twice-weekly, 1-h manualized group sessions (12.5 weeks total duration) of either CBSST-CCT or SC delivered by master's level clinicians in five community settings. Assessments of negative symptom severity (primary outcomes) and neuropsychological performance, functional capacity, social skills performance, and self-reported functional ability/everyday functioning, psychiatric symptom severity, and motivation (secondary outcomes) were administered at baseline, mid-treatment, post-treatment, and 6-month follow-up. RESULTS: Mixed-effects models using baseline, mid-treatment, and post-treatment data demonstrated significant CBSST-CCT-associated effects on negative symptom severity, as assessed by the Scale for the Assessment of Negative Symptoms (p = .049, r = 0.22), with improvements in diminished motivation driving this effect (p = .037, r = 0.24). The CBSST-CCT group also demonstrated improved verbal learning compared to SC participants (p = .026, r = 0.36). The effects of CBSST-CCT appeared to be durable at 6-month follow-up. CONCLUSIONS: CBSST-CCT improved negative symptom severity and verbal learning in high-negative-symptom individuals relative to SC. CBSST-CCT warrants larger investigations to examine its efficacy in treating negative symptoms, along with other symptoms, cognition, and, ultimately, real-world functional outcomes. Clinical Trial registration number NCT02170051.
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Terapia Cognitivo-Conductual/métodos , Pruebas Neuropsicológicas/estadística & datos numéricos , Trastornos Psicóticos/terapia , Adulto , Terapia Cognitivo-Conductual/estadística & datos numéricos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Proyectos Piloto , Trastornos Psicóticos/psicología , Habilidades Sociales , Resultado del TratamientoRESUMEN
OBJECTIVE: This study examined rates of objective cognitive and functional impairments and associations between cognitive performance and performance-based functional capacity in a well-characterized sample of adults experiencing homelessness. METHODS: One hundred participants completed a brief neuropsychological and functional capacity assessment and self-report questionnaires. Cognitive impairment rates were determined by comparing mean scores with published normative data, as well as by examining frequency of scores >1 SD below the mean. Pearson correlations were used to examine associations between cognitive and functional capacities. RESULTS: Overall, 65% of the study participants had scores in the cognitively impaired range on a brief cognitive screening test, 30% had impaired processing speed, and 11% met cognitive criteria for intellectual disability. Furthermore, 48% of the sample met functional impairment criteria, and poorer cognitive performance was strongly associated with poorer performance-based functional capacity (p<0.001). CONCLUSIONS: Cognitive and functional impairments are common among sheltered adults experiencing homelessness, underscoring the need for routine objective cognitive screening and rehabilitation services.
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Trastornos del Conocimiento , Disfunción Cognitiva , Personas con Mala Vivienda , Adulto , Cognición , Trastornos del Conocimiento/epidemiología , Disfunción Cognitiva/epidemiología , Humanos , Pruebas NeuropsicológicasRESUMEN
The current study examined the feasibility and acceptability of an integrated Cognitive-Behavioral Social Skills Training and Compensatory Cognitive Training (CBSST-CCT) intervention compared with Goal-Focused Supportive Contact (SC) in a pilot randomized controlled trial for people with schizophrenia with high negative symptom severity. The sample included 55 participants from five community settings; masters-level study clinicians delivered interventions on-site. Participants completed assessments of cognitive, functional, and psychiatric symptoms at baseline, mid-treatment, post-treatment (12.5 weeks), and 6-month follow-up. Enrollment goals were not initially met, necessitating the addition of a fifth site; however, all groups and assessments were completed on-site. Study procedures were acceptable, as evidenced by 100% enrollment and completion of baseline assessments following informed consent; however, over 1/3rd of participants dropped out. No modifications were necessary to the intervention procedures and CBSST-CCT fidelity ratings were acceptable. The intervention was deemed acceptable among participants who attended ≥1 session, as evidenced by similar attendance rates in CBSST-CCT compared to SC. Among CBSST-CCT participants, lower positive symptoms were significantly associated with better attendance. Overall, we found mixed evidence for the feasibility and acceptability of the CBSST-CCT protocol in people with schizophrenia with high negative symptoms. Challenges are highlighted and recommendations for future investigations are provided.
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Terapia Cognitivo-Conductual/métodos , Aceptación de la Atención de Salud/psicología , Esquizofrenia/diagnóstico , Esquizofrenia/terapia , Psicología del Esquizofrénico , Habilidades Sociales , Adulto , Anciano , Cognición/fisiología , Estudios de Factibilidad , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Proyectos PilotoRESUMEN
Adults who are homeless experience high rates of health conditions and psychological distress, including low IQ and functional status. Resources are available to help these individuals, but provision of support is often contingent upon the identification of a known disability. In this context, we examined case managers' (CMs') subjective estimates of IQ and functional status in 77 adult residents of an urban homeless shelter. Participants completed objective measures of IQ and functional capacity. CMs overestimated IQs of lower IQ (IQ < 90) participants, correctly estimated IQs of average IQ (IQ = 90-110) participants, and underestimated IQs of higher IQ (IQ > 110) participants. CMs correctly identified 2 out of 8 participants meeting criteria for intellectual disability and 4 out of 16 participants with impaired functional status. These findings suggest that subjective evaluations of IQ and functional status are prone to a central tendency bias, leading CMs to overlook clients who are in need of assistance. Consequently, the objective measurement of IQ and functional status in homeless shelters is highly recommended. (PsycInfo Database Record (c) 2020 APA, all rights reserved).
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Gestores de Casos/organización & administración , Estado Funcional , Personas con Mala Vivienda/psicología , Discapacidad Intelectual/diagnóstico , Inteligencia , Adulto , California , Femenino , Humanos , Pruebas de Inteligencia , Masculino , Persona de Mediana Edad , Calidad de la Atención de SaludRESUMEN
Research identifying the effects of cognitive training on negative symptoms of psychosis is limited. We examined the effects of Compensatory Cognitive Training (CCT) on expressive deficits and social amotivation in a randomized controlled trial comparing CCT to standard pharmacotherapy alone in 43 individuals with psychosis. ANCOVA analyses demonstrated significant CCT-associated effects on both expressive deficits and social amotivation. Moreover, improvements in both sub-domains were associated with improvements in global life satisfaction, with improvements in social amotivation also related to increased social contact. CCT appears to be a beneficial treatment approach for improving multiple aspects of negative symptoms.
Asunto(s)
Apatía/fisiología , Trastornos Psicóticos/fisiopatología , Trastornos Psicóticos/terapia , Esquizofrenia/fisiopatología , Esquizofrenia/terapia , Conducta Social , Adulto , Remediación Cognitiva , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastornos Psicóticos/tratamiento farmacológico , Esquizofrenia/tratamiento farmacológico , Resultado del TratamientoRESUMEN
Background: Early psychosocial interventions targeting cognitive and functional outcomes in individuals at clinical high risk for psychosis are a research priority. An even greater need is the identification of effective interventions in underserved populations. Compensatory Cognitive Training (CCT) is a psychosocial intervention with demonstrated efficacy in chronic schizophrenia and first episode psychosis, but remains to be evaluated in pre-illness phases. The aim of this study was to describe the development and implementation of an ongoing pilot randomized controlled trial investigating the efficacy of group-based, manualized CCT, as compared to recreational therapy (RT), for Latino participants at clinical high risk for psychosis (CHR) in both the United States and Mexico. It is hypothesized that, in comparison to those receiving RT, participants receiving CCT will show significant improvements in neurocognitive performance and functional capacity (co-primary outcomes) and self-rated functioning and clinical symptoms (secondary outcomes). Methods: Latino CHR participants aged 12-30 years will be included in the study. Both CCT and RT will be delivered in either Spanish or English, depending on group preference. Additionally, all assessments will be administered in participants' preferred language. A comprehensive assessment of neurocognitive and functional performance and clinical symptomatology will be performed at baseline, mid-intervention (4 weeks, 8 weeks), post-intervention (12 weeks) and 3-month follow-up. The primary outcome measures are neurocognition and functional capacity, as assessed by the MATRICS (Measurement and Treatment Research in Cognition in Schizophrenia) Consensus Cognitive Battery and the University of California, San Diego Performance-Based Skills Assessment-Brief, respectively. Furthermore, secondary outcomes measures will be used to examine change in clinical symptoms and self-reported functioning in response to CCT versus RT. Discussion: The evaluation of a novel treatment such as CCT in CHR youth will provide empirical support for a low risk, comprehensive cognitive intervention that could have important implications for public health if it improves neurocognition and functioning.