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1.
Sci Rep ; 14(1): 18446, 2024 08 08.
Artigo em Inglês | MEDLINE | ID: mdl-39117715

RESUMO

The study aims to explore the relationship among metacognition (MC), fear of disease of progression (FoP), psychological distress (PD), and quality of life (QoL), and verify whether FoP and PD have a chain mediating effect between MC and QoL. 231 hematologic tumor patients in a large tertiary hospital were investigated by using Meta-Cognitions Questionnaire-30, Fear of Progression Questionnaire-Short Form, Hospital Anxiety and Depression Scale, and Functional Assessment of Cancer Therapy scale. Data analyses were performed using IBM SPSS (version 25.0) and the PROCESS macro (version 4.1). The results showed that the direct impact of MC on QoL was not statistically significant. However, the indirect influence of MC on QoL manifest through the independent influences of PD and FoP, as well as the chain mediating effect of "PD → FoP." In addition, all four dimensions of QoL (physical, social and family, emotional, and functional) satisfy the chain mediation model, except for the social and family domain. These insights advance our comprehension of the intricate interplay between MC and QoL, underscoring the importance of improving MC to alleviate patients' PD, mitigate FoP, and ultimately improve the QoL of hematologic tumor patients.


Assuntos
Neoplasias Hematológicas , Metacognição , Qualidade de Vida , Humanos , Neoplasias Hematológicas/psicologia , Masculino , Feminino , Pessoa de Meia-Idade , Adulto , Metacognição/fisiologia , Idoso , Inquéritos e Questionários , Medo/psicologia , Progressão da Doença , Angústia Psicológica
2.
Top Cogn Sci ; 14(2): 400-413, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34865303

RESUMO

Improving the accuracy of medical image interpretation can improve the diagnosis of numerous diseases. We compared different approaches to aggregating repeated decisions about medical images to improve the accuracy of a single decision maker. We tested our algorithms on data from both novices (undergraduates) and experts (medical professionals). Participants viewed images of white blood cells and made decisions about whether the cells were cancerous or not. Each image was shown twice to the participants and their corresponding confidence judgments were collected. The maximum confidence slating (MCS) algorithm leverages metacognitive abilities to consider the more confident response in the pair of responses as the more accurate "final response" (Koriat, 2012), and it has previously been shown to improve accuracy on our task for both novices and experts (Hasan et al., 2021). We compared MCS to similarity-based aggregation (SBA) algorithms where the responses made by the same participant on similar images are pooled together to generate the "final response." We determined similarity by using two different neural networks where one of the networks had been trained on white blood cells and the other had not. We show that SBA improves performance for novices even when the neural network had no specific training on white blood cell images. Using an informative representation (i.e., network trained on white blood cells) allowed one to aggregate over more neighbors and further boosted the performance of novices. However, SBA failed to improve the performance for experts even with the informative representation. This difference in efficacy of the SBA suggests different decision mechanisms for novices and experts.


Assuntos
Metacognição , Humanos , Julgamento/fisiologia , Metacognição/fisiologia , Estudantes
3.
J Cancer Res Ther ; 17(4): 956-962, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34528548

RESUMO

BACKGROUND: Self-esteem refers to a person's positive and negative attitudes towards the self, and metacognition is an upper system providing awareness and direction of events and mental functions. Coping refers to the specific and psychological efforts used to deal with stressful events or the negative effects of the agents of these. The aim of this study was to evaluate self-esteem, metacognition status and coping attitudes in patients with cancer, which is known to have severely destructive psychological effects. MATERIALS AND METHODS: Fifty adult cancer patients who were followed up in the medical oncology clinic between July 2018 and June 2019 and 50 age- and gender-matched healthy controls as control group were included in this study. All the participants were applied with a sociodemographic data form, the Rosenberg self-esteem scale, the Metacognition Assessment Scale, and the Copying Orientation to Problems Experienced (COPE) inventory, and their results were compared between the groups. RESULTS: The groups comprised 50% females with a median age of 58 (33-82) years. The values related to the degree of participation in discussions, problem-focused coping, active coping, planning, and state of emotional vulnerability were low in the cancer patient group compared to the control group (P < 0.005 for all). The sustaining of their self-image, feeling threatened in interpersonal relationships, and degree of daydreaming were higher, and in the metacognition tests, the positive beliefs related to anxiety, uncontrolled or dangerous negative thoughts, nonfunctional coping, religious coping, joking, reckless behavior, substance use, denial, and mental disengagement scores were higher (P < 0.05 for all). CONCLUSION: Self-esteem was lower in cancer patients and upper level cognitive functions and problem-focused coping were determined to be worse compared to healthy controls. In the light of these results, psychosocial support given to cancer patients in this respect could contribute to quality of life and social conformity.


Assuntos
Adaptação Psicológica/fisiologia , Ansiedade/etiologia , Metacognição/fisiologia , Neoplasias/complicações , Qualidade de Vida , Autoimagem , Estresse Psicológico/etiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Ansiedade/psicologia , Estudos de Casos e Controles , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/psicologia , Prognóstico , Estresse Psicológico/psicologia , Inquéritos e Questionários
4.
Acta Neuropsychiatr ; 33(2): 65-71, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33109296

RESUMO

Psychotherapy research aims to investigate predictors and moderators of treatment outcome, but there are few consistent findings. This study aimed to investigate cytokines in patients undergoing treatment for anxiety disorders and whether the level of cytokines moderated the treatment outcome. Thirty-seven patients with comorbid and treatment-resistant anxiety disorders were investigated using multilevel modelling. Serum cytokine levels were measured three times: pretreatment, in the middle of treatment, and at the end of treatment. Anxiety and metacognitions were measured weekly throughout treatment by self-report. The levels of monocyte chemoattractant protein-1, tumour necrosis factor-alpha, and interleukin-1 receptor antagonist did not change during therapy or were not related to the level of anxiety. Metacognitive beliefs predicted anxiety, but the relationship between metacognitions and anxiety was not moderated by cytokines. Limitations of the study include that the patients were not fasting at blood sampling, and we did not assess body mass index, which may affect cytokine levels. The lack of significance for cytokines as a predictor or moderator may be due to a lack of power for testing moderation hypotheses, a problem associated with many psychotherapy studies. Cytokines did not predict the outcome in the treatment of comorbid anxiety disorders in our sample. Furthermore, cytokines did not moderate the relationship between metacognitions and anxiety.


Assuntos
Transtornos de Ansiedade/metabolismo , Transtornos de Ansiedade/psicologia , Citocinas/sangue , Metacognição/fisiologia , Adulto , Transtornos de Ansiedade/tratamento farmacológico , Transtornos de Ansiedade/terapia , Comorbidade , Resistência à Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Psicoterapia/normas , Autorrelato , Resultado do Tratamento
5.
Psychol Health ; 36(12): 1497-1513, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-33370209

RESUMO

OBJECTIVES: While significantly elevated distress is repeatedly found amongst young people with cystic fibrosis, their determinants remain largely unknown. This study explored whether metacognitive beliefs and self-efficacy for emotion regulation were associated with anxiety and depression after control for physical functioning, age and gender. DESIGN: Cross-sectional study using a 110-item online questionnaire. METHODS: An online survey was undertaken by 147 young people with CF aged 10-18 from five countries. Associations of Hospital Anxiety and Depression Scale scores with gender, age, physical functioning, Metacognitive Beliefs Questionnaire for Children (MCQ-C) subscales and Self-Efficacy for Emotion Regulation (SE-ER) were examined using hierarchical multiple linear regressions. RESULTS: Physical functioning, gender and age accounted for 31% of the variance in anxiety and 39% in depression. The MCQ-C and SE-ER added another 45% to the variance of anxiety and 32% to depression. At the final step of both analyses, physical functioning, SE-ER, MCQ-C Negative Meta-Worry and Superstition, Punishment & Responsibility contributed significantly. Older age was also significantly associated with depression. CONCLUSIONS: Self-efficacy for emotion regulation, concern about worrying and shame may be particularly important foci for interventions aimed at ameliorating anxiety and depression in young people with CF.


Assuntos
Fibrose Cística , Metacognição , Adolescente , Ansiedade/psicologia , Criança , Estudos Transversais , Humanos , Metacognição/fisiologia , Autoeficácia , Inquéritos e Questionários
6.
Conscious Cogn ; 84: 102988, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32768920

RESUMO

Lucid dreaming-the phenomenon of experiencing waking levels of self-reflection within one's dreams-is associated with more wake-like levels of neural activation in prefrontal brain regions. In addition, alternating periods of wakefulness and sleep might increase the likelihood of experiencing a lucid dream. Here we investigate the association between sleep fragmentation and lucid dreaming, with a multi-centre study encompassing four different investigations into subjective and objective measures of sleep fragmentation, nocturnal awakenings, sleep quality and polyphasic sleep schedules. Results across these four studies provide a more nuanced picture into the purported connection between sleep fragmentation and lucid dreaming: While self-assessed numbers of awakenings, polyphasic sleep and physiologically validated wake-REM sleep transitions were associated with lucid dreaming, neither self-assessed sleep quality, nor physiologically validated numbers of awakenings were. We discuss these results, and their underlying neural mechanisms, within the general question of whether sleep fragmentation and lucid dreaming share a causal link.


Assuntos
Sonhos/fisiologia , Metacognição/fisiologia , Privação do Sono/fisiopatologia , Sono REM/fisiologia , Vigília/fisiologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
7.
Psychol Assess ; 32(10): 956-971, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32700920

RESUMO

The ability to decenter from internal experiences is important for mental health. Consequently, improving decentering is a common therapeutic target, particularly for mindfulness-based interventions. However, extant decentering measures are limited as they fail to directly assess all 3 metacognitive processes recently theorized to subserve decentering. We thus conducted 4 studies to develop and test the Metacognitive Processes of Decentering-Trait (MPoD-t) and State (MPoD-s) scales. Consistent with the metacognitive processes model, exploratory factor analysis (N = 355) and then bifactor exploratory structural equation modeling (N = 275) indicated the MPoD-t was composed of three independent yet interrelated lower-order factors, metaawareness, (dis)identification with internal experience, and (non)reactivity to internal experience, which subserved an emergent, higher-order, decentering factor. We next found evidence of the MPoD-t's convergent validity; as well as known-groups criterion validity, wherein mindfulness practitioners reported higher MPoD-t scores than nonpractitioners. Item response theory analyses were then used to identify a subset of 3 MPoD-t items for the MPoD-s. Finally, we found evidence that the MPoD-s was sensitive to changes in state decentering following a brief mindfulness induction relative to an active control condition; and that MPoD-s changes mediated the effect of mindfulness on levels of pain and related outcomes among a sample of preoperative surgery patients (N = 82). These studies indicate the trait and state versions of the MPoD may prove useful for the study of decentering and its constituent metacognitive processes. As such, the MPoD may help advance our understanding of how the metacognitive processes of decentering support mental health and well-being. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Assuntos
Conscientização , Metacognição , Atenção Plena , Personalidade , Psicometria/normas , Adulto , Conscientização/fisiologia , Feminino , Humanos , Masculino , Metacognição/fisiologia , Pessoa de Meia-Idade , Personalidade/fisiologia , Psicometria/instrumentação , Psicometria/métodos
8.
Brain Behav ; 10(4): e01545, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32154659

RESUMO

OBJECTIVE: Although cancer patients frequently report cognitive disturbances, it is commonly asserted a lack of association between cognitive complaints and neuropsychological test performances. Our goal was to better understand the relationships between subjective and objective cognitive scores through a metamemory monitoring assessment. METHODS: Sixty cancer patients currently treated by chemotherapy and/or targeted therapy, and 30 healthy controls (HC) were included. Cognitive complaint was assessed by FACT-cog, QAM and DEX questionnaires. One or more z-scores ≤-1.65 among these three questionnaires defined the presence of cognitive complaints. Objective cognitive performances assessed episodic memory, processing speed and executive functions/working memory (ESR paradigm, TMT, Stroop, n-back). Metamemory was assessed with a Judgment of Learning (JOL) task. RESULTS: Patients with cognitive complaints had significantly more depressive and anxiety symptoms (ps < .004), and lower performances on several cognitive tests (ps < .05) than both patients without complaints and HC. More specifically, analyses of the metamemory scores revealed that HC gave significantly more overestimations ("Yes" judgment and incorrect recall) than patients with cognitive complaints (p = .036). For these patients, JOL scores correlated positively with executive functioning (ps < .01). CONCLUSION: Metamemory monitoring seems to be well-preserved during cancer. What is more, patients make less overestimation than HC, and they do not underestimate their memory. An accurate self-estimation of memory abilities in cancer patients, particularly those with mild cognitive deficits, may play an adaptive function. Our results suggest that the discrepancy frequently reported between cognitive complaints and objective cognitive scores may not be related to metamemory monitoring dysfunction.


Assuntos
Disfunção Cognitiva/complicações , Metacognição/fisiologia , Neoplasias/complicações , Adulto , Idoso , Disfunção Cognitiva/psicologia , Função Executiva/fisiologia , Feminino , Humanos , Julgamento/fisiologia , Aprendizagem/fisiologia , Masculino , Memória de Curto Prazo/fisiologia , Rememoração Mental/fisiologia , Pessoa de Meia-Idade , Neoplasias/psicologia , Testes Neuropsicológicos , Inquéritos e Questionários
9.
Psychooncology ; 29(2): 271-279, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31663187

RESUMO

OBJECTIVE: This longitudinal study mapped distinct trajectories of fear of cancer recurrence (FCR) over 12 months among patients with breast (BC) or colorectal (CRC) cancer, and examined if metacognition, indirectly via attentional bias, intrusive thoughts and avoidance (hallmarks of cognitive attentional syndrome; CAS) predicted FCR trajectory membership. METHODS: Two hundred and seventy BC (n = 163) or CRC (n = 107) patients were assessed at 8-weeks, 3-, 6-, and 12-months postsurgery on a measure of FCR (FCRI-SF). Metacognition (MCQ-30), Intrusive and Avoidant Thoughts (CIES-R) and attentional bias (dot-probe tasks) were assessed at baseline. Latent growth mixture modeling identified FCR trajectories. Fully-adjusted Multinomial Logistic Regression identified whether direct and indirect effects of metacognition through CAS determined FCR trajectory membership. RESULTS: Three distinct FCR trajectories were identified, namely, low-stable (62.4%), high-stable (29.2%), and recovery (8.3%). Negative beliefs about worry, cognitive confidence, and age predicted FCR trajectories (χ2 (6) = 38.31, P<.001). Compared with Low-stable group, Recovery FCR patients held greater Negative beliefs about worry (OR = 1.13, P = .035) and High-stable FCR patients reported poorer Cognitive confidence (OR = 1.12, P = .004). The effect of Negative beliefs about worry was partially mediated by avoidance (ß = .06, 95% CIs 0.03-0.12) and fully mediated by intrusive thoughts (ß = .14, 95% CIs 0.08-0.20). Attentional bias did not predict FCR trajectories. CONCLUSIONS: While most patients experienced low level of FCR, 3 in 10 persistently worried about cancer returning over the first 12-months postsurgery. Modifying metacognitive knowledge to interrupt maladaptive cognitive processing including intrusion and avoidance may be an effective therapeutic intervention for patients at risk of persistent FCR.


Assuntos
Ansiedade/psicologia , Atenção , Neoplasias da Mama/psicologia , Neoplasias Colorretais/psicologia , Metacognição , Recidiva Local de Neoplasia/psicologia , Transtornos Fóbicos/psicologia , Adulto , Idoso , Atenção/fisiologia , Feminino , Humanos , Estudos Longitudinais , Masculino , Metacognição/fisiologia , Pessoa de Meia-Idade
10.
J Int Neuropsychol Soc ; 26(2): 187-196, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31699166

RESUMO

OBJECTIVE: This study aimed to examine: (1) patient-proxy agreement on executive functioning (EF) of patients with primary brain tumors, (2) the relationships between patient- and proxy-report with performance-based measures of EF, and (3) the potential influence of performance-based measures on the level of agreement. METHODS: Meningioma and low-grade glioma patients and their informal caregivers completed the Behavior Rating Inventory of Executive Function (BRIEF-A) 3 months after surgery. The two index scores of the BRIEF-A, Behavioral Regulation and Metacognition, were evaluated. Mean scores of patients and proxies were compared with normative values and with each other. Patient-proxy agreement was evaluated with Lin's concordance correlation coefficients (CCCs) and Bland-Altman plots. Pearson correlation coefficients between reported EF and performance-based measures of EF were calculated. Multiple regression analysis was used to evaluate the potential influence of test performance on differences in dyadic reports. RESULTS: A total of 47 dyads were included. Patients reported significantly more problems on the Metacognition Index compared to norms, and also in comparison with their proxies. Effect sizes indicated small differences. Moderate to substantial agreement was observed between patients and proxies, with CCCs of 0.57 and 0.61 for Metacognition and Behavioral Regulation, respectively. Correlations between reported EF and test performance ranged between -0.37 and 0.10. Dyadic agreement was not significantly influenced by test performance. CONCLUSIONS: Patient-proxy agreement was found to be moderate. No clear associations were found between reported EF and test performance. Future studies should further explore the existing and new methods to assess everyday EF in brain tumor patients.


Assuntos
Neoplasias Encefálicas/complicações , Cuidadores , Disfunção Cognitiva/diagnóstico , Função Executiva , Glioma/complicações , Meningioma/complicações , Metacognição , Desempenho Psicomotor , Autorrelato , Escala de Avaliação Comportamental , Neoplasias Encefálicas/cirurgia , Disfunção Cognitiva/etiologia , Função Executiva/fisiologia , Feminino , Seguimentos , Glioma/cirurgia , Humanos , Masculino , Meningioma/cirurgia , Metacognição/fisiologia , Pessoa de Meia-Idade , Testes Neuropsicológicos , Procedimentos Neurocirúrgicos , Medidas de Resultados Relatados pelo Paciente , Desempenho Psicomotor/fisiologia
11.
J Cancer Surviv ; 13(5): 695-702, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31347010

RESUMO

PURPOSE: ConquerFear is an efficacious intervention for fear of cancer recurrence (FCR) that demonstrated greater improvements than an attention control (relaxation training) in a randomized controlled trial. This study aimed to determine mediators and moderators of the relative treatment efficacy of ConquerFear versus relaxation. METHODS: One hundred and fifty-two cancer survivors completed 5 therapy sessions and outcome measures before and after intervention and at 6 months' follow-up. We examined theoretically relevant variables as potential mediators and moderators of treatment outcome. We hypothesized that metacognitions and intrusions would moderate and mediate the relationship between treatment group and FCR level at follow-up. RESULTS: Only total FCR score at baseline moderated treatment outcome. Participants with higher levels of FCR benefited more from ConquerFear relative to relaxation on the primary outcome. Changes in metacognitions and intrusive thoughts about cancer during treatment partially mediated the relationship between treatment group and FCR. CONCLUSIONS: These results show that ConquerFear is relatively more effective than relaxation for those with overall higher levels of FCR. The mediation analyses confirmed that the most likely mechanism of treatment efficacy was the reduction in unhelpful metacognitions and intrusive thoughts during treatment, consistent with the theoretical framework underpinning ConquerFear. IMPLICATIONS FOR CANCER SURVIVORS: ConquerFear is a brief, effective treatment for FCR in cancer survivors with early-stage disease. The treatment works by reducing intrusive thoughts about cancer and changing beliefs about worry and is particularly helpful for people with moderate to severe FCR.


Assuntos
Ansiedade/terapia , Medo , Recidiva Local de Neoplasia/psicologia , Transtornos Fóbicos/terapia , Psicoterapia , Terapia de Aceitação e Compromisso , Adulto , Ansiedade/epidemiologia , Ansiedade/psicologia , Atenção/fisiologia , Sobreviventes de Câncer/psicologia , Sobreviventes de Câncer/estatística & dados numéricos , Cognição/fisiologia , Regulação Emocional/fisiologia , Medo/psicologia , Feminino , Seguimentos , Humanos , Masculino , Metacognição/fisiologia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/epidemiologia , Transtornos Fóbicos/epidemiologia , Psicoterapia/métodos , Terapia de Relaxamento/psicologia , Fatores de Risco , Resultado do Tratamento
12.
Asia Pac J Ophthalmol (Phila) ; 8(3): 256-263, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30596228

RESUMO

Participation in continuing professional development (CPD) is part of lifelong learning required by ophthalmologists. Metacognition is a new area of educational research. It is important because metacognitive skills are essential in medical education and likely to improve effectiveness of CPD activities. We systematically searched PubMed using the terms "metacognition" and "CPD" or "continuing medical education (CME)" and found only 5 articles. These articles were supplemented by a broadbased review of published literature including educational psychology, across the continuum of medical education. We summarize the techniques that may improve metacognition in CPD: awareness of and instruction in metacognition, awareness and mitigation of cognitive errors, appropriate needs analysis, and choosing appropriate activities. Metacognition and learning of new surgical techniques, the role of portfolios, and the role of the educator are described. The evidence is weak however, and it is usually extrapolated to CPD activities from other fields. Ophthalmologists may be able to improve their metacognitive skills in the CPD context, but the evidence supporting this is of low quality.


Assuntos
Educação Médica Continuada/métodos , Guias como Assunto , Aprendizagem/fisiologia , Metacognição/fisiologia , Procedimentos Cirúrgicos Oftalmológicos/educação , Oftalmologistas/educação , Oftalmologia/educação , Humanos , Oftalmologistas/psicologia
13.
Summa psicol. UST ; 16(2): 60-69, 2019. ilus, tab
Artigo em Espanhol | LILACS | ID: biblio-1129161

RESUMO

La Metódica MEIN metacognición infantiles una herramienta psicoeducativa para educadoras de párvulos y básica, que busca favorecer el desarrollo en las edades de 4 a 6 años, entrenando habilidades cognitivas para desarrollar metacognición en edades más avanzadas. Así, tal estrategia hace posible entrenar de una manera peculiar e interactiva, las habilidades cognitivas frente una actividad, a partir de la propia iniciativa del niño/a. El mediador intenciona, significa y acompaña para que el infante sea capaz de idear la estrategia que empleará en su proceso de aprendizaje, y para que a partir de su apropiación transfiera a otros contextos, valorando el desempeño de su construcción. La metodología empleada fue cualitativa mediante un diseño de estudio de casos. El resultado fundamental del estudio demuestra que la Metódica MEIN es un recurso que facilita a la educadora orientar positivamente los procesos cognitivos en un espacio complejo de desarrollo para el entrenamiento temprano de habilidades metacognitivas. Al niño/a le permite actuar libremente con independencia, facilitando la toma de conciencia.


The MEIN methodical -child metacognition is a psychoeducational tool for development, aimed at educators to train cognitive skills in children from 4 to 6 years old so that subjects of more advanced ages can develop metacognition. The MEIN methodical makes it possible to train in a peculiar, interactive way, cognitive abilities in the face of an activity that starts from the children's initiative; the mediator promotes, signifies and accompanies them so that they are able to devise the strategy that they will employ in the learning process, and from their appropriation they transfer to other contexts, so as to value their construction's performance. The methodology used was qualitative through a case study design. The fundamental result of the study shows that the MEIN methodical is a resource that facilitates the educator to positively orient cognitive processes in a complex development space for early training of metacognitive skills. The child is free to act independently, facilitating awareness.


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Aptidão , Metacognição/fisiologia , Tutoria , Chile , Pesquisa Qualitativa , Aprendizagem/fisiologia
14.
Brain Cogn ; 120: 48-57, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29122369

RESUMO

Brodmann area 10 (BA10) is thought to be at the summit of the prefrontal cortex's hierarchical organization. It is widely accepted that metacognitive abilities depend on the structural and functional properties of BA10. Our objective was to assess whether metacognition can be maintained after low-grade glioma surgery with BA10 resection. Three groups of participants were recruited: (i) patients having undergone resection of the right prefrontal cortex, including BA10 (n = 9); (ii) patients having undergone resection of the right prefrontal cortex but not BA10 (n = 10); and (iii) healthy controls (n = 38). Importantly, we also included a patient (referred to as "PR") with resection of BA10 in the two hemispheres. The patients with resection of right BA10 had metacognitive performances that were indistinguishable from those of brain-damaged control patients and healthy controls. Crucially, PR's metacognitive ability was not only maintained but was even in the upper quartile of normal performances. Our findings demonstrate that the brain can redistribute and remap metacognition in response to injury. We thus provide experimental evidence against the conventional hypothesis whereby cognitive functions are directly and lastingly linked to particular cortical structures. The latter hypothesis seems to be particularly false for the highest levels of human cognition and for BA10.


Assuntos
Neoplasias Encefálicas/cirurgia , Metacognição/fisiologia , Plasticidade Neuronal/fisiologia , Córtex Pré-Frontal/patologia , Córtex Pré-Frontal/fisiologia , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Córtex Pré-Frontal/cirurgia
15.
J. appl. oral sci ; J. appl. oral sci;26: e20170414, 2018. tab, graf
Artigo em Inglês | LILACS, BBO - Odontologia | ID: biblio-954506

RESUMO

Abstract Reading requires the activation of several cognitive processes, some of which are basic, e.g. recognizing letters and words, whereas others are complex, such as working memory and ability to think about one's own learning strategies. One condition for fulfilling a complex cognitive task, such as understanding a text, is the ability to maintain and process information, which depends on working memory. Objective To analyze the ability of using metacognitive strategies for reading, the phonological working memory of school children with learning disabilities, and also determine if there is relation between these skills and reading comprehension. Method The sample consisted of 30 school-age children and teenagers of both genders, aged 8 to 12 years, who were enrolled in primary school. They were divided in two groups, experimental (EG) and control (CG). All children were subjected to evaluation of reading comprehension, phonological working memory, and use of metacognitive skills for reading. The results were compared between groups through the Mann-Whitney test, and correlation between variables was analyzed through Spearman correlation test. Result Statistical comparison between EG and CG showed statistically significant difference. Positive and effective correlation was observed between reading comprehension, phonological working memory and metacognitive tests. Conclusion children with learning disabilities presented deficits in phonological working memory and use of metacognitive strategies. The positive and effective correlation between the abilities analyzed suggests that failure in the phonological working memory and use of metacognitive strategies interfere with reading comprehension.


Assuntos
Humanos , Masculino , Feminino , Criança , Leitura , Compreensão/fisiologia , Metacognição/fisiologia , Deficiências da Aprendizagem/fisiopatologia , Memória de Curto Prazo/fisiologia , Valores de Referência , Fonética , Estudos de Casos e Controles , Estatísticas não Paramétricas , Dislexia/fisiopatologia , Testes Neuropsicológicos
16.
Behav Cogn Psychother ; 44(4): 397-409, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25895437

RESUMO

BACKGROUND: Studies have reported that Cognitive Behavioural Therapy (CBT) and Graded Exercise Therapy (GET) are effective treatments for Chronic Fatigue Syndrome (CFS). METHOD: One hundred and seventy-one patients undertook a course of either CBT (n = 116) or GET (n = 55) and were assessed on a variety of self-report measures at pre- and posttreatment and follow-up. AIMS: In this paper we present analyses on treatment outcomes for CBT and GET in routine clinical practice and evaluate whether changes on subscales of the Metacognitions Questionnaire-30 (MCQ-30) predict fatigue severity independently of changes in other covariates, and across the two treatment modalities. RESULTS: Both CBT and GET were equally effective at decreasing fatigue, anxiety, and depression, and at increasing physical functioning. Changes on the subscales of the MCQ-30 were also found to have a significant effect on fatigue severity independently of changes in other covariates and across treatment modalities. CONCLUSION: The findings from the current study suggest that CFS treatment protocols for CBT and GET, based on those from the PACE trial, achieve similar to poorer outcomes in routine clinical practice as in a RCT.


Assuntos
Síndrome de Fadiga Crônica/terapia , Metacognição/fisiologia , Adulto , Idoso , Terapia Cognitivo-Comportamental/métodos , Depressão/terapia , Terapia por Exercício/métodos , Fadiga/psicologia , Fadiga/terapia , Síndrome de Fadiga Crônica/psicologia , Feminino , Previsões , Humanos , Masculino , Pessoa de Meia-Idade , Qualidade de Vida , Autorrelato , Inquéritos e Questionários , Resultado do Tratamento
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