Impact of cognitive reserve on bipolar disorder: a systematic review

BackgroundCognitive reserve (CR) is a complex concept that includes premorbid IQ, years of education, and exposure to neuropsychological stimuli through work and leisure. Previous studies have suggested that CR has a positive impact on several aspects of bipolar disorder. Synthesizing the evidence to date is an important work in providing directions for future studies. The objectives of this systematic review to summary impact of CR on onsetting, relapsing bipolar episodes, buffering cognitive dysfunctions, and maintaining quality of life (QOL) in bipolar disorder.MethodsTwo researchers independently reviewed selected paper from three database as PubMed, PsychINFO, and Web of Science. The search keywords were “bipolar disorder” and “cognitive reserve.” The selected studies were classified as the levels of evidence according to the criteria of the Oxford Center for Evidence- Based Medicine. The results of the selected studies were summarized according to the objectives.ResultsThrity six studies were included in this review. People with high CR may have fewer bipolar episodes and alleviate cognitive impairments and dysfunction. CR may keep the functional level in patients with bipolar disorder.ConclusionThe results of this systematic review suggest that CR may be involved in preventing relapse of bipolar episodes and may alleviate cognitive dysfunction. However, effect on prevention of onset-risk and relapse of bipolar episodes need further investigation in prospective studies.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021270293, the protocol was registered with PROSERO (CRD42021270293)

ハッタツ ショウガイ ケイコウ ト ソーシャル サポート ガ シシュンキ ノ セッショク ショウガイ ケイコウ ニ オヨボス エイキョウ

The purpose of this study was to investigate the influence of developmental disorder tendency and social support on the eating disorder tendency at puberty. In Study 1, we created a scale to measure the AN (Anorexia Nervosa) tendency, BN (Bulimia Nervosa) tendency, ASD (Autism Spectrum Disorder) tendency, AD/HD (Attention Deficit/Hyper Activity Disorder) tendency, and social support for healthy junior high school students. In Study 2, using a measure that was created in study 1, a questionnaire survey was conducted in healthy junior high school students. 211 students participated. As a result, tendency towards AN was higher in the group with high social support than in the group with low social support. In addition, tendency towards AN and BN was higher in the group with high AD/HD tendency and high social support than in the group with low AD/HD group and low social support

NIRS during cognitive tasks might predict drug response in OCD

Objective: We investigated oxyhemoglobin change in the prefrontal cortex (PFC) of patients with obsessive–compulsive disorder (OCD) who showed different responses to pharmacotherapy during neuropsychological tasks with near-infrared spectroscopy. Subjects and methods: A total of 42 patients with OCD (mean age: 35.6±9.6 years, 14 men, 28 women) and healthy control subjects (mean age: 35.4±9.7 years, 13 men, 29 women) were selected. Patients with OCD were divided into three groups (responders to selective serotonin-reuptake inhibitors (SSRIs), responders to SSRIs with antipsychotics, and nonresponders to SSRIs and SSRIs with antipsychotics) based on pharmacological response. We investigated oxyhemoglobin change in the PFC of subjects during Stroop tasks and a verbal fluency test with near-infrared spectroscopy. Results: Responders to SSRIs showed smaller activation compared to control subjects during the Stroop incongruent task and verbal fluency test, but not during the Stroop congruent task. In contrast, responders to SSRIs with antipsychotics showed smaller activation compared to control subjects during all three tasks. Conclusion: Our results suggest that activation of the PFC during Stroop tasks might predict responses to pharmacotherapy of patients with OCD

Effect of cognitive function on jumping to conclusion in patients with schizophrenia

The “jumping to conclusion” (JTC) bias is related to the formation and maintenance of delusions. Higher JTC bias can be based on both neurocognitive dysfunction and social cognitive dysfunction in patients with schizophrenia. The aim of this study was to assess the relationship between JTC bias, neurocognition, and social cognition in patients with schizophrenia. A total of 22 patients with schizophrenia and 21 controls participated in this study. Neurocognition and social cognition were assessed using the Brief Assessment of Cognition in Schizophrenia (BACS) and Social Cognition Screening Questionnaire (SCSQ), respectively. The JTC bias and the decision confidence were assessed using the beads task. The patients were classified into the JTC group (with higher JTC bias; n = 10) and JTC-non group (n = 12). The JTC group scored significantly lower on verbal memory, working memory, and motor speed sub-scores of BACS than the JTC-non group. No difference in social cognition was observed between the two groups. The decision confidence was predicted by metacognition, which is an SCSQ sub-score. Similarly to the patients, the controls were classified into the JTC group (higher JTC bias; n = 9) and the JTC-non group (n = 12). There were no significant differences in neurocognition and social cognition between the control JTC and JTC-non groups. The present results indicated that JTC bias is related to neurocognition and decision confidence is related to social cognition in patients with schizophrenia. These findings may bridge the gaps between psychotic symptom and cognitive dysfunction in schizophrenia

神経性やせ症患者のQOLに影響を与える臨床的要因

Objective: The purpose of this study was to elucidate clinical factors influencing quality of life (QOL) in anorexia nervosa (AN) patients. Methods: Twenty female patients with AN (median age = 30.0 years, quartile deviation = 6.8) and forty female healthy controls (HC) (median age = 30.0 years, quartile deviation = 8.6) participated in the study. QOL was assessed with the 36-Item Short Form Health Survey (SF-36) and social support was evaluated using the Multidimensional Scale of Perceived Social Support (MSPSS). Clinical symptoms were evaluated with the Structured Interview Guide for the Hamilton Depression Rating Scale (SIGH-D) and the Eating Disorder Inventory-2 (EDI-2). Results: Scores of the SF-36 Mental Component Summary (MCS) (U = 124.0, P < 0.0001) and Role/Social Component Summary (RCS) (U = 223.0, P = 0.006) and scores of total (U = 108.0, P < 0.0001) and subscales of the MSPSS were lower in AN group than HC group, and the SIGH-D score was higher (U = 46.0, P < 0.0001) in AN group than HC group. Scores of the SIGH-D (ρ = −0.565, P < 0.05) and subscales of the EDI-2 Interoceptive Confusion (ρ = −0.556, P < 0.05), Interpersonal Difficulty (ρ = −0.581, P < 0.05) and Negative Self-image (ρ = −0.617, P < 0.05) were negatively correlated to MCS, and score of Interoceptive Confusion subscale showed a negative correlation to RCS (ρ = −0.672, P < 0.05). Moreover, stepwise regression analysis showed that the SIGH-D score was an independent predictor of MCS and Interoceptive Confusion score predicted RCS. Conclusion: These results suggest that among a variety of clinical symptoms and psychopathologies, depressive symptoms, poor emotional awareness and impaired sense of control are the most important influencing factors on AN patients’ QOL

Clinical factors influencing resilience in patients with anorexia nervosa

Purpose: This study was to elucidate clinical factors influencing resilience in anorexia nervosa (AN) patients. Patients and methods: Twenty female patients with AN (median age =30.0 years, quartile deviation =6.8) and 40 female healthy controls (HCs) (median age =30.0 years, quartile deviation =8.6) participated in the present study. Resilience was assessed with the Connor–Davidson resilience scale (CD-RISC). Clinical symptoms were evaluated with the structured interview guide for the Hamilton depression rating scale (SIGH-D) and the eating disorder inventory-2 (EDI-2). Results: Scores of the CD-RISC in the AN group were lower than those in the HC group, and the SIGH-D score in the AN group was higher than that in the HC group. Scores of interoceptive confusion, interpersonal difficulty and negative self-image subscales of the EDI-2 negatively correlated with the CD-RISC score. Moreover, stepwise regression analysis showed that negative self-image score was an independent predictor of the CD-RISC score. Conclusion: These results suggest that among these clinical factors including psychopathologies, self-dissatisfaction and feeling of being rejected by others are the most important influencing factors on an AN patients’ resilience

Social cognition in anorexia nervosa

Background: The purpose of this study was to investigate the characteristics of social cognition in patients with anorexia nervosa (AN). Methods: Eighteen female patients with AN (mean age =35.4±8.6 years) and 18 female healthy controls (HC) (mean age =32.8±9.4 years) participated in the study. Their social cognition was assessed with the Social Cognition Screening Questionnaire (SCSQ). Results: The results showed that total score of the SCSQ and scores of theory of mind and metacognition were significantly lower in AN group than those in HC group. Moreover, significant differences in theory of mind, metacognition, and total score of the SCSQ remained when the effects of depression, anxiety, and starvation were eliminated statistically. Conclusion: These results suggest that patients with AN may have difficulty inferring other people’s intention and also monitoring and evaluating their own cognitive activities. Therefore, these features may explain some aspects of the pathology of AN

統合失調症患者において否定的、肯定的自己認知は主観的QOLを予測する

Purpose: Recently, cognitive variables such as negative and positive self-belief and thoughts have attracted much attention because they are associated with functional outcomes and quality of life (QOL). However, it is unclear how cognitive variables affect subjective and objective QOL. This study aimed to investigate the relationship of negative and positive self-belief and thoughts with subjective and objective QOL. Participants and methods: Thirty-six people with schizophrenia participated in this study. Subjective and objective QOL were assessed with the Schizophrenia Quality of Life Scale (SQLS) and Quality of Life Scale (QLS), respectively. Neurocognitive function was assessed with the Brief Assessment of Cognition in Schizophrenia (BACS). Clinical symptoms were assessed with the Positive and Negative Syndrome Scale and Calgary Depression Scale for Schizophrenia. Side effects were assessed with the Drug-induced Extrapyramidal Symptoms Scale (DIEPSS). Negative and positive self-belief and thoughts were assessed with the Defeatist Performance Belief Scale and Automatic Thoughts Questionnaire-Revised. A generalized linear model was tested, with subjective and objective QOL as the response variable and symptoms, neurocognitive function, and cognitive variables that were significantly correlated with subjective and objective QOL as explanatory variables. Results: In the schizophrenia group, the common objects score on the QLS was predicted by the composite BACS score, and the total QLS score was predicted by the DIEPSS score. Motivation and Energy, Psychosocial, and Symptoms and Side effects scores on the SQLS were predicted by depression and by negative automatic thought (NAT) and positive automatic thought (PAT). Conclusion: Our results indicated that key targets for improving objective and subjective QOL in people with schizophrenia are side effects, neurocognitive function, depression, and NAT and PAT

Effectiveness of Videoconference-Delivered Cognitive Behavioral Therapy for Adults With Psychiatric Disorders : Systematic and Meta-Analytic Review

Background: Cognitive behavioral therapy (CBT) is the gold standard of psychotherapy for psychiatric disorders. However, the format of delivering CBT in person limits access to the intervention. The advancements in information and communication technology, especially the internet, present an opportunity for cognitive behavioral therapists to service patients or clients in remote areas through videoconferencing. Although many randomized controlled trials of videoconference-delivered cognitive behavioral therapy (VCBT) have already been conducted, the overall estimated effect size of VCBT for psychiatric disorders has not been examined by systematic reviews and meta-analyses. Objective: This study attempts to evaluate the effectiveness of VCBT for psychiatric disorders through a systematic and meta-analytic review. Methods: A systematic review and meta-analysis of studies in which VCBT was directly compared to control groups (such as treatment as usual, attention control, wait-list control, and other minimal supports) was carried out. To identify previous studies that meet our study objective, 2 independent reviewers undertook a systematic search through seven databases: MEDLINE (via PubMed), Web of Science, Science Direct, PsycINFO, CINAHL, LILACS, and SciELO. Other databases (ClinicalTrials.gov and Cochrane Central Resister of Controlled Trials) were also checked. All studies included in the review were assessed using the quality criteria of the Cochrane Collaboration. Statistical analysis was performed by using Cochrane Review Manager (RevMan, version 5.4.0). Standardized mean difference was used in major meta-analyses where a P value of .05 or less was the threshold for statistical significance. A heterogeneity test and the chi-square test were performed to assess the presence and extent of statistical heterogeneity with significance set at P&amp;lt;. 10. Funnel plots were visually inspected to assess the risk of bias. Subgroup analyses were conducted for each disorder to estimate intervention effects. Results: The systematic search resulted in 16 studies (total N=1745) that met the criteria for this study and were included in the review. There were 10 studies on depressive symptoms, 3 on chronic pain, 1 on generalized anxiety disorder, 1 on obsessive-compulsive disorder, and 1 on hypochondriasis. The quality and risk of bias was also assessed. Results showed a pooled effect size (Hedge g) post treatment of -0.49 (95% CI -0.68 to -0.29), indicating that VCBT is effective for clients with psychiatric disorders. Study quality did not affect outcomes. Conclusions: While the overall results indicate the effectiveness of VCBT, there are still only a limited number of studies on specific psychiatric and somatic conditions. Therefore, more randomized controlled trials are needed to establish the effectiveness of VCBT for different disorders.Funding Agencies|Japan Society for the Promotion of Science KAKENHIMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research (KAKENHI) [18K03130, 18K17313]</p