Nonordinary Experiences, Well-being and Mental Health: A Systematic Review of the Evidence and Recommendations for Future Research.

Throughout history, people have reported nonordinary experiences (NOEs) such as feelings of oneness with the universe and hearing voices. Although these experiences form the basis of several spiritual and religious traditions, experiencing NOEs may create stress and uncertainty among those who experience such events. To provide a more systematic overview of the research linking NOEs with mental health, we present a systematic review of studies focusing on NOEs, well-being and mental health indicators. In a search of ProQuest and PsycInfo, we identified 725 references, of which 157 reported empirical data and were included in our review. Overall, the studies reviewed suggest that the relationship between NOEs and mental health is complex, varying according to a series of psychological and social factors. In particular, they suggest that appraisal processes play a fundamental role in the mental health outcomes of these experiences. However, we also highlight important methodological challenges such as the conceptual overlap between NOEs and well-being or psychopathological constructs, the conflation between experiences and appraisal processes in the assessment procedure, and the need for clearer assessment of the duration, controllability, impact on daily functioning and general context of the experiences. We provide a qualitative summary of empirical evidence and main themes of research and make recommendations for future investigation.

Implementation of an online self-knowledge and mental health promotion journey for the Brazilian population: opportunities and challenges / Implementação de uma jornada online de autoconhecimento e promoção de saúde mental para população brasileira: oportunidades e desafios

The study aimed to investigate opportunities and challenges in implementing an online self-knowledge journey for the Brazilian population. The journey offers free psychological self-assessments and psychoeducational materials to participants. Personalized feedbacks are also provided by filling in standardized scales from international literature (on personality, emotions, values, beliefs, spirituality and mental health). In order to assess the challenges of using the online self-knowledge journey interviews were conducted with a think-aloud protocol (N=16). The findings of the interviews fed into the process of developing a new version. This new version was evaluated through focus groups (N=9) and qualitative interviews (N=6) which helped to validate the adjustments implemented. The strengths found in using the journey were high conceptual acceptance, good therapeutic opportunities, clear language, reliability and personal identification with the personalized feedbacks. To improve the journey we identified the need for usability adjustments, shorter texts and simpler graphics. The adjustments were incorporated and validated in the new release version, which was well accepted and has promising prospects to be used in the Brazilian Unified Health System. Based on the evaluations carried out, good results are expected in the clinical area with the use of the journey, which can be a useful technological device to complement health promotion actions linked to mental health and to personal development services.

O estudo visou investigar oportunidades e desafios na implementação de uma jornada online de autoconhecimento voltada para a população brasileira. A jornada desenvolvida oferece autoavaliações psicológicas gratuitas e materiais psicoeducativos aos participantes. Foram produzidos também feedbacks personalizados que são gerados com o preenchimento de escalas padronizadas da literatura internacional (sobre personalidade, emoções, valores, crenças, espiritualidade e saúde mental). Para avaliar os desafios de implementação foram conduzidas entrevistas com protocolo think-aloud (N=16), cujos achados nutriram processos de desenvolvimento de uma nova versão. Essa nova versão foi avaliada por meio de grupos focais (N=9) e entrevistas qualitativas (N=6) que contribuíram para validar os ajustes implementados. Os pontos fortes encontrados com a jornada desenvolvida foram: alta aceitação conceitual, boas oportunidades terapêuticas, linguagem clara, confiabilidade e identificação pessoal com os feedbacks personalizados. Entre os desafios de implementação evidenciaram-se os ajustes de usabilidade e a necessidade de escalas menores, textos curtos e gráficos simples. Os ajustes foram incorporados e validados na nova versão de divulgação, a qual apresentou boa aceitação e perspectivas promissoras de uso junto a serviços do SUS. A ciência da implementação apresentou-se como recurso essencial para a obtenção de melhores encaixes digitais com a intervenção proposta. A solução apresenta boas oportunidades na área clínica, podendo ser um aparato tecnológico útil para complementar ações de promoção de saúde vinculadas aos serviços de saúde mental e de desenvolvimento pessoal.

Effective interventions to reduce loneliness in big cities.

PURPOSE OF REVIEW: Loneliness is a state of distress or discomfort between the desired and experienced level of connectedness to others. These feelings may be particular salient in urban environments that seemingly offer more opportunities for social contact, highlighting the discrepancy. The topic of loneliness has received increased attention because of its negative impact on mental and physical health combined with concerns of increased loneliness due to lockdowns and social distancing regulations during the coronavirus disease 2019 pandemic. We provide a bibliometric and random-effects meta-analysis of clinical trials published since 2020 and available via PubMed. RECENT FINDINGS: Loneliness interventions have predominantly focused on elderly in the community. Adolescents and young adults as a second group at risk have received much less attention. On average across 44 effect sizes studied in 38 trials, interventions show moderate levels of effectiveness but are characterized by high heterogeneity and trials are often underpowered and use low quality designs. Multidimensional interventions show promise for alleviating loneliness, but the intervention context needs greater attention. SUMMARY: Scalable and effective interventions for the general population and at-risk groups of loneliness are still scarce. Some promising interventions have been trialled and merit further attention.

Predictors of functional impairment and awareness in people with dementia, mild cognitive impairment and healthy older adults from a middle-income country.

Objective: To investigate the demographic, clinical and cognitive correlates of functional capacity and its awareness in people with dementia (PwD; n = 104), mild cognitive impairment (PwMCI; n = 45) and controls (healthy older adults; n = 94) in a sample from a middle-income country. Methods: Dementia and MCI were diagnosed, respectively, with DSM-IV and Petersen criteria. Performance in activities of daily living (ADL) at three different levels [basic (The Katz Index of Independence), instrumental (Lawton instrumental ADL scale) and advanced (Reuben's advanced ADL scale)], measured through self- and informant-report, as well as awareness (discrepancy between self- and informant-report), were compared between groups. Stepwise regression models explored predictors of ADL and their awareness. Results: PwD showed impairment in all ADL levels, particularly when measured through informant-report. No differences were seen between controls and PwMCI regardless of measurement type. PwD differed in awareness of instrumental and basic, but not of advanced ADL, compared to controls. Age, gender, education and fluency were the most consistent predictors for ADL. Diagnosis was a significant predictor only for instrumental ADL. Awareness of basic ADL was predicted by memory, and awareness of instrumental ADL was predicted by general cognitive status, educational level, and diagnosis. Conclusion: Results reinforce the presence of lack of awareness of ADL in PwD. Use of informant-reports and cognitive testing for fluency are suggested for the clinical assessment of ADL performance. Finally, assessment of instrumental ADL may be crucial for diagnostic purposes.

Diagnostic accuracy of CompCog: reaction time as a screening measure for mild cognitive impairment.

BACKGROUND: Reaction time is affected under different neurological conditions but has not been much investigated considering all types of mild cognitive impairment (MCI). OBJECTIVE: This study investigated the diagnostic accuracy of CompCog, a computerized cognitive screening battery focusing on reaction time measurements. METHODS: A sample of 52 older adults underwent neuropsychological assessments, including CompCog, and medical appointments, to be classified as a control group or be diagnosed with MCI. The accuracy of CompCog for distinguishing between the two groups was calculated. RESULTS: The results from diagnostic accuracy analyses showed that the AUCs of ROC curves were as high as 0.915 (CI 0.837-0.993). The subtest with the highest sensitivity and specificity (choice reaction time subtest) had 91.7% sensitivity and 89.3% specificity. The logistic regression final model correctly classified 92.3% of individuals, with 92.9% specificity and 91.7% sensitivity, and included only four variables from different subtests. CONCLUSIONS: In summary, the study showed that reaction time assessed through CompCog is a good screening measure to differentiate between normal aging and MCI. Reaction time measurements in milliseconds were more accurate than correct answers. This test can form part of routine clinical tests to achieve the objectives of screening for MCI, indicating further procedures for investigation and diagnosis and planning interventions.

Diagnostic accuracy of CompCog: reaction time as a screening measure for mild cognitive impairment / Acurácia diagnóstica do CompCog: tempo de reação como uma medida de rastreio para comprometimento cognitivo leve

ABSTRACT Background Reaction time is affected under different neurological conditions but has not been much investigated considering all types of mild cognitive impairment (MCI). Objective This study investigated the diagnostic accuracy of CompCog, a computerized cognitive screening battery focusing on reaction time measurements. Methods A sample of 52 older adults underwent neuropsychological assessments, including CompCog, and medical appointments, to be classified as a control group or be diagnosed with MCI. The accuracy of CompCog for distinguishing between the two groups was calculated. Results The results from diagnostic accuracy analyses showed that the AUCs of ROC curves were as high as 0.915 (CI 0.837-0.993). The subtest with the highest sensitivity and specificity (choice reaction time subtest) had 91.7% sensitivity and 89.3% specificity. The logistic regression final model correctly classified 92.3% of individuals, with 92.9% specificity and 91.7% sensitivity, and included only four variables from different subtests. Conclusions In summary, the study showed that reaction time assessed through CompCog is a good screening measure to differentiate between normal aging and MCI. Reaction time measurements in milliseconds were more accurate than correct answers. This test can form part of routine clinical tests to achieve the objectives of screening for MCI, indicating further procedures for investigation and diagnosis and planning interventions.

RESUMO Antecedentes O tempo de reação é afetado em diferentes condições neurológicas, mas não foi muito investigado considerando todos os tipos de comprometimento cognitivo leve (CCL). Objetivo Este estudo investigou a acurácia diagnóstica do CompCog, uma bateria computadorizada de rastreio cognitivo focada em medidas de tempo de reação. Métodos Uma amostra de 52 idosos passou por uma avaliação neuropsicológica, incluindo o CompCog, e uma consulta médica para serem classificados como grupo controle ou serem diagnósticos com CCL. A acurácia do teste para distinguir entre os dois grupos foi calculada. Resultados Os resultados das análises de acurácia diagnóstica mostraram AUC das curvas ROC tão altas quanto 0,915 (CI 0,837-0,993). O subteste com maior sensibilidade e especificidade - subteste de tempo de reação de escolha - apresentou sensibilidade de 91,7% e especificidade de 89,3%. O modelo final de regressão logística classificou corretamente 92,3% dos indivíduos, com especificidade de 92,9% e sensibilidade de 91,7%, e incluiu apenas 4 variáveis ​​de diferentes subtestes. Conclusões Em resumo, o estudo mostrou que o tempo de reação avaliado pelo CompCog é uma boa medida de rastreio para diferenciar entre envelhecimento normal e CCL. Medidas de tempo de reação em milissegundos se mostraram melhores que o número de respostas corretas. O teste pode fazer parte de testes clínicos de rotina para atingir o objetivo de rastrear o CCL, indicar outros procedimentos para investigação e diagnóstico e planejar intervenções.

Evidence of the validity of a novel version of the computerized cognitive screening battery CompCog / Evidência de validade de uma nova versão da bateria computadorizada de rastreio cognitivo CompCog

ABSTRACT Although the availability of the computer-based assessment has increased over the years, neuropsychology has not carried out a significant paradigm shift since the personal computer's popularization in the 1980s. To keep up with the technological advances of healthcare and neuroscience in general, more efforts must be made in the field of clinical neuropsychology to develop and validate new and more technology-based instruments, especially considering new variables and paradigms when compared to paper and pencil tests. Objective: This study's objective was to produce concurrent validity evidence of the novel version of the computerized cognitive screening battery CompCog. Methods: Participants performed a traditional paper and pencil neuropsychological testing session and another session where CompCog was administrated. The data of a total of 50 young adult college students were used in the analyses. Results: Results have shown moderate and strong correlations between CompCog's tasks and their equivalents considering paper and pencil tests. Items clustered in agreement with the subtest division in a principal component analysis. Conclusions: The findings suggest that CompCog is valid for measuring the cognitive processes its tasks intend to evaluate.

RESUMO Embora a disponibilidade de instrumentos computadorizados para avaliação tenha aumentado ao longo dos anos, a neuropsicologia não passou por uma mudança significativa de paradigma desde a popularização do computador pessoal nos anos 1980. Para acompanhar os avanços tecnológicos da saúde e da neurociência em geral, mais esforços devem ser feitos no campo da neuropsicologia clínica para desenvolver e validar novos instrumentos de base mais tecnológica, especialmente considerando novas variáveis e paradigmas quando comparados aos testes de lápis e papel. Objetivo: O objetivo deste estudo foi produzir evidências de validade concorrente da nova versão da bateria computadorizada de rastreio cognitivo CompCog. Métodos: Os participantes passaram por uma sessão de avaliação neuropsicológica com testes tradicionais de lápis e papel e de outra sessão em que o CompCog foi administrado. Os dados do total de 50 jovens adultos universitários foram utilizados nas análises. Resultados: Os resultados mostraram correlações moderadas e fortes entre as tarefas do CompCog e seus equivalentes nos testes tradicionais. Uma análise de componentes principais mostrou que os itens formaram fatores em concordância com a divisão de subtestes da bateria. Conclusões: Os resultados sugerem que o CompCog é válido para medir os processos cognitivos que suas tarefas pretendem avaliar.

Mild cognitive impairment history and current procedures in low- and middle-income countries: a brief review.

Mild cognitive impairment (MCI) is a widely studied concept that has changed over time. Epidemiology, diagnosis, costs, prognostics, screening procedures, and categorization have been extensively discussed. However, unified guidelines are still not available, especially considering differences between low- and middle-income countries (LMIC) and high-income countries (HIC). OBJECTIVES: To contextualize and identify the main areas under investigation regarding MCI diagnosis and to investigate how much of the current knowledge is compatible with the diagnosis in an LMIC. METHODS: This brief review followed the framework outlined for a scoping review and goes through the history of MCI and its diagnosis, the differences and relevance of LMIC research regarding the concept, and the current criteria for diagnosis. RESULTS: Results show that the unique characteristics of LMIC influence the development of cognitive decline and how suitable procedures suggested by HIC can be used by LMIC to identify pathological aging processes in their early stages. CONCLUSION: Neuropsychological assessment of activities of daily living performance, considering the difference between omission and commission errors, is a more accessible course of action as a screening procedure for cognitive decline in LMIC.

O comprometimento cognitivo leve (CCL) é um conceito amplamente estudado que mudou ao longo do tempo. Epidemiologia, diagnóstico, custos, prognósticos, procedimentos de triagem e categorização já foram amplamente debatidos. No entanto, diretrizes unificadas ainda não estão disponíveis, especialmente considerando as diferenças entre países de baixa e média renda (PBMR) e países de alta renda (PAR). OBJETIVOS: Contextualizar e identificar as principais áreas de pesquisa em relação ao diagnóstico do CCL e investigar quanto do atual conhecimento é compatível com o diagnóstico em PBMR. MÉTODOS: Esta revisão se guiou a estrutura delineada para uma scoping review, percorrendo a história do CCL, o diagnóstico, as diferenças e a relevância da pesquisa de PBMR para o conceito e os critérios atuais para diagnóstico. RESULTADOS: Os resultados mostram que as características únicas dos PMBR influenciam o declínio cognitivo e como os procedimentos sugeridos por PAR podem ser usados por PBMR para identificar processos de envelhecimento patológico em seus estágios iniciais. CONCLUSÃO: A avaliação neuropsicológica de atividades de desempenho de vida diária, considerando a diferença entre erros de omissão e comissão, é um curso de ação mais acessível como um procedimento de triagem para declínio cognitivo em PMBR.

Mild cognitive impairment history and current procedures in low- and middle-income countries: a brief review / História e procedimentos atuais em países de baixa e média renda para o comprometimento cognitivo leve: uma breve revisão

ABSTRACT. Mild cognitive impairment (MCI) is a widely studied concept that has changed over time. Epidemiology, diagnosis, costs, prognostics, screening procedures, and categorization have been extensively discussed. However, unified guidelines are still not available, especially considering differences between low- and middle-income countries (LMIC) and high-income countries (HIC). Objectives: To contextualize and identify the main areas under investigation regarding MCI diagnosis and to investigate how much of the current knowledge is compatible with the diagnosis in an LMIC. Methods: This brief review followed the framework outlined for a scoping review and goes through the history of MCI and its diagnosis, the differences and relevance of LMIC research regarding the concept, and the current criteria for diagnosis. Results: Results show that the unique characteristics of LMIC influence the development of cognitive decline and how suitable procedures suggested by HIC can be used by LMIC to identify pathological aging processes in their early stages. Conclusion: Neuropsychological assessment of activities of daily living performance, considering the difference between omission and commission errors, is a more accessible course of action as a screening procedure for cognitive decline in LMIC.

RESUMO. O comprometimento cognitivo leve (CCL) é um conceito amplamente estudado que mudou ao longo do tempo. Epidemiologia, diagnóstico, custos, prognósticos, procedimentos de triagem e categorização já foram amplamente debatidos. No entanto, diretrizes unificadas ainda não estão disponíveis, especialmente considerando as diferenças entre países de baixa e média renda (PBMR) e países de alta renda (PAR). Objetivos: Contextualizar e identificar as principais áreas de pesquisa em relação ao diagnóstico do CCL e investigar quanto do atual conhecimento é compatível com o diagnóstico em PBMR. Métodos: Esta revisão se guiou a estrutura delineada para uma scoping review, percorrendo a história do CCL, o diagnóstico, as diferenças e a relevância da pesquisa de PBMR para o conceito e os critérios atuais para diagnóstico. Resultados: Os resultados mostram que as características únicas dos PMBR influenciam o declínio cognitivo e como os procedimentos sugeridos por PAR podem ser usados por PBMR para identificar processos de envelhecimento patológico em seus estágios iniciais. Conclusão: A avaliação neuropsicológica de atividades de desempenho de vida diária, considerando a diferença entre erros de omissão e comissão, é um curso de ação mais acessível como um procedimento de triagem para declínio cognitivo em PMBR.

Evidence of the validity of a novel version of the computerized cognitive screening battery CompCog.

Although the availability of the computer-based assessment has increased over the years, neuropsychology has not carried out a significant paradigm shift since the personal computer's popularization in the 1980s. To keep up with the technological advances of healthcare and neuroscience in general, more efforts must be made in the field of clinical neuropsychology to develop and validate new and more technology-based instruments, especially considering new variables and paradigms when compared to paper and pencil tests. Objective: This study's objective was to produce concurrent validity evidence of the novel version of the computerized cognitive screening battery CompCog. Methods: Participants performed a traditional paper and pencil neuropsychological testing session and another session where CompCog was administrated. The data of a total of 50 young adult college students were used in the analyses. Results: Results have shown moderate and strong correlations between CompCog's tasks and their equivalents considering paper and pencil tests. Items clustered in agreement with the subtest division in a principal component analysis. Conclusions: The findings suggest that CompCog is valid for measuring the cognitive processes its tasks intend to evaluate.

Embora a disponibilidade de instrumentos computadorizados para avaliação tenha aumentado ao longo dos anos, a neuropsicologia não passou por uma mudança significativa de paradigma desde a popularização do computador pessoal nos anos 1980. Para acompanhar os avanços tecnológicos da saúde e da neurociência em geral, mais esforços devem ser feitos no campo da neuropsicologia clínica para desenvolver e validar novos instrumentos de base mais tecnológica, especialmente considerando novas variáveis e paradigmas quando comparados aos testes de lápis e papel. Objetivo: O objetivo deste estudo foi produzir evidências de validade concorrente da nova versão da bateria computadorizada de rastreio cognitivo CompCog. Métodos: Os participantes passaram por uma sessão de avaliação neuropsicológica com testes tradicionais de lápis e papel e de outra sessão em que o CompCog foi administrado. Os dados do total de 50 jovens adultos universitários foram utilizados nas análises. Resultados: Os resultados mostraram correlações moderadas e fortes entre as tarefas do CompCog e seus equivalentes nos testes tradicionais. Uma análise de componentes principais mostrou que os itens formaram fatores em concordância com a divisão de subtestes da bateria. Conclusões: Os resultados sugerem que o CompCog é válido para medir os processos cognitivos que suas tarefas pretendem avaliar.

Diagnostic accuracy of early cognitive indicators in mild cognitive impairment.

The aging of the population leads to an increase in the prevalence of dementia and mild cognitive impairment (MCI). Alzheimer's disease (AD) is the most common cause of dementia. Recent studies highlight the early non-amnestic deficits in AD and MCI. The European Union report shows the importance of thoroughly assessing cognitive aspects that have been poorly evaluated, such as processing speed (PS), which could represent early indicators of cognitive decline. OBJECTIVE: To analyze the diagnostic accuracy of PS measures in older adults with MCI, AD, and those who are cognitively-healthy. METHODS: A cross-sectional study was conducted by performing an extensive neuropsychological assessment in three samples: 26 control participants, 22 individuals with MCI, and 21 individuals with AD. Analysis of variance (ANOVA) was employed to test the relationship between dependent variables and the clinical group. Post hoc tests (Bonferroni test) were used when a significant ANOVA result was found. Finally, the Receiver Operating Characteristic (ROC) curve for PS measures was performed in older adults with MCI and AD compared with cognitively-healthy older adults. RESULTS: The results showed that deficits in PS measures can be early indicators of cognitive decline in cases of MCI, even when executive functions (EFs) and functionality are preserved. Conversely, AD versus MCI presented differences in PS, EFs, and functionality. CONCLUSIONS: The ROC analyses showed that PS measures had discriminative capacities to differentiate individuals with MCI, AD, and cognitively-healthy older adults.

O envelhecimento da população leva ao aumento da prevalência de demência e comprometimento cognitivo leve (CCL). A doença de Alzheimer (DA) é a causa mais comum de demência. Estudos recentes destacam os déficits precoces não amnésicos em DA e CCL. O relatório da União Europeia mostra a necessidade de avaliar em maior profundidade aspectos cognitivos que atualmente são negligenciados, como a velocidade de processamento (VP), e que podem representar indicadores precoces de declínio cognitivo. OBJETIVO: O objetivo deste estudo foi analisar a acurácia diagnóstica de medidas de VP em idosos com CCL, DA e participantes controles. MÉTODOS: um estudo transversal foi desenvolvido, no qual realizou-se uma extensa avaliação neuropsicológica em 3 amostras: 26 participantes controles, 22 casos de CCL e 21 DA. A relação entre as variáveis dependentes e o grupo clínico foi testada com uma análise de variância (ANOVA). Se uma ANOVA significativa fosse encontrada, testes post hoc foram utilizados. Por fim, a curva ROC para medidas de VP foi realizada em CCL e DA em comparação com indivíduos controles. RESULTADOS: os resultados mostraram que déficits nas medidas de VP podem ser indicadores precoces do declínio cognitivo nos casos de CCL, mesmo quando as funções executivas (FE) e a funcionalidade estão preservadas. Por outro lado, DA versus CCL mostrou diferenças em VP, EF e funcionalidade. CONCLUSÕES: As análises ROC mostraram que as medidas de PS tinham capacidades discriminativas para diferenciar CCL, DA e participantes controles.

Diagnostic accuracy of early cognitive indicators in mild cognitive impairment / Acurácia diagnóstica de indicadores cognitivos precoces em comprometimento cognitivo leve

ABSTRACT The aging of the population leads to an increase in the prevalence of dementia and mild cognitive impairment (MCI). Alzheimer's disease (AD) is the most common cause of dementia. Recent studies highlight the early non-amnestic deficits in AD and MCI. The European Union report shows the importance of thoroughly assessing cognitive aspects that have been poorly evaluated, such as processing speed (PS), which could represent early indicators of cognitive decline. Objective: To analyze the diagnostic accuracy of PS measures in older adults with MCI, AD, and those who are cognitively-healthy. Methods: A cross-sectional study was conducted by performing an extensive neuropsychological assessment in three samples: 26 control participants, 22 individuals with MCI, and 21 individuals with AD. Analysis of variance (ANOVA) was employed to test the relationship between dependent variables and the clinical group. Post hoc tests (Bonferroni test) were used when a significant ANOVA result was found. Finally, the Receiver Operating Characteristic (ROC) curve for PS measures was performed in older adults with MCI and AD compared with cognitively-healthy older adults. Results: The results showed that deficits in PS measures can be early indicators of cognitive decline in cases of MCI, even when executive functions (EFs) and functionality are preserved. Conversely, AD versus MCI presented differences in PS, EFs, and functionality. Conclusions: The ROC analyses showed that PS measures had discriminative capacities to differentiate individuals with MCI, AD, and cognitively-healthy older adults.

RESUMO O envelhecimento da população leva ao aumento da prevalência de demência e comprometimento cognitivo leve (CCL). A doença de Alzheimer (DA) é a causa mais comum de demência. Estudos recentes destacam os déficits precoces não amnésicos em DA e CCL. O relatório da União Europeia mostra a necessidade de avaliar em maior profundidade aspectos cognitivos que atualmente são negligenciados, como a velocidade de processamento (VP), e que podem representar indicadores precoces de declínio cognitivo. Objetivo: O objetivo deste estudo foi analisar a acurácia diagnóstica de medidas de VP em idosos com CCL, DA e participantes controles. Métodos: um estudo transversal foi desenvolvido, no qual realizou-se uma extensa avaliação neuropsicológica em 3 amostras: 26 participantes controles, 22 casos de CCL e 21 DA. A relação entre as variáveis dependentes e o grupo clínico foi testada com uma análise de variância (ANOVA). Se uma ANOVA significativa fosse encontrada, testes post hoc foram utilizados. Por fim, a curva ROC para medidas de VP foi realizada em CCL e DA em comparação com indivíduos controles. Resultados: os resultados mostraram que déficits nas medidas de VP podem ser indicadores precoces do declínio cognitivo nos casos de CCL, mesmo quando as funções executivas (FE) e a funcionalidade estão preservadas. Por outro lado, DA versus CCL mostrou diferenças em VP, EF e funcionalidade. Conclusões: As análises ROC mostraram que as medidas de PS tinham capacidades discriminativas para diferenciar CCL, DA e participantes controles.