Neuropsychology Review最新文献

This meta-analysis estimated the group differences between individuals with and without neurofibromatosis type 1 (NF1) and explored potential moderators. Systematic literature searches identified 2531 unique articles. Among them, 70 studies (183 effect sizes) were included in this meta-analysis, involving 3503 individuals' visuospatial and visuomotor abilities with NF1 (46.67% female; M_age = 12.60 years) and 3127 individuals without NF1 (52.40% female; M_age = 13.19 years). Robust standard error estimation techniques and random models were used to calculate standardized group differences. The results showed that individuals with (vs. without) NF1 exhibited significantly lower visuospatial (g =  - 0.90; 95% CI [- 1.00, - 0.80], I² = 64.59%) and visuomotor abilities (g =  - 0.90; 95% CI [- 1.05, - 0.75], I² = 74.87%). The moderator analysis revealed that group differences in visuospatial abilities were larger for children with NF1 (g =  - 0.95; 95% CI [- 1.06, - 0.84]) than adolescents (g =  - 0.64; 95% CI [- 0.91, - 0.37]) and adults (g =  - 0.73; 95% CI [- 0.88, - 0.58]). Additionally, a greater between-group difference was found when visuospatial abilities were assessed using Judgment of Line Orientation (g =  - 1.06; 95% CI [- 1.17, - 0.94]) than Wechsler Intelligence Scale-Visual Spatial Index (g =  - 0.70; 95% CI [- 0.86, - 0.54]). Sex composition, NF1 inheritance mode, IQ, learning disorder, ADHD, types of control group, sampling method, and exclusion criteria of NF1 participants were not significant moderators. The substantial visuospatial and visuomotor deficits in the NF1 population highlight the necessity for targeted interventions, and considerable between-study heterogeneity underscores that further exploration of predictors is needed.

Neuropsychological testing is an essential tool in clinical settings engaged in detecting, treating, or preventing neurocognitive disorders around the world. There is a need for accurate norms across cultures, including Latinx/Hispanic communities. We reviewed studies published in English or Spanish focused on acquiring normative data for Spanish-speaking individuals in the United States (U.S.), Latin America and the Caribean (LAC), and Spain. We searched available studies from Embase, PubMed, PsycINFO APA, Science Direct, and ProQuest up to October 31, 2024. Studies were imported to COVIDENCE and reviewed by two Spanish-English bilingual reviewers and one proficient English reviewer. Ultimately, 75 articles were included and categorized into U.S. (n = 23), LAC (n = 21), Spain (n = 23), and multiregional (n = 8) based. Overall, most studies included a cognitively normal/healthy sample to establish the normative data, adjusting or stratifying for age, education, and sex. In Spanish speakers, cognitive performance improved with advancing age in children and adolescents and declined with age in adults. Higher education was also associated with better performance on tests across regions. While this review highlights the increasing accumulation of norms for Spanish-speaking populations, there is a continued need to expand norms to other Spanish-speaking populations not included in this analysis. Future research should add variables, such as acculturation and bilingualism, to aid normative rigor. This review works as a tool to facilitate and improve the understanding of current normative data.

The National Institutes of Health Toolbox Cognition Battery (NIHTB-CB) is an assessment tool that has been widely utilized in research with clinical populations across the lifespan. Despite its widespread use, a systematic review and meta-analysis of cognitive function utilizing this battery in clinical samples has not been reported. To address this gap, 84 studies were identified after systematically searching PsycINFO, PubMed, and ProQuest (71 peer-reviewed articles, 11 dissertations, 2 master's theses) comprising 6331 clinical participants. Study quality was assessed using the QUADAS-2 tool. Results identified significant deficits in the Fluid Cognition Composite and the associated subtests (attention, working memory, processing speed, executive function) in clinical samples when compared to both the NIHTB-CB normative data and recruited comparison samples. Unexpectedly, there was some evidence that clinical participants scored higher on Crystallized Cognition subtests than the normative data but scored significantly lower than recruited controls. There was mixed evidence for performance differences on a Total Cognition Composite measure of cognitive function. There was some evidence of publication bias, and results were moderated by study quality and participant demographics. The implications of the findings for clinical research settings are discussed and suggested future directions are provided.

Episodic memory impairment can persist in persons with HIV (PWH) despite treatment. Depression is among the most prevalent comorbidities in HIV. Changes to brain regions involved in episodic memory like the hippocampus and the prefrontal cortex have been well documented in depression. If episodic memory changes occur in PWH, it is important to understand the potential impact of concurrent depressive symptoms (DS). Thus, our objective was to conduct a systematic review and meta-analysis on the role of DS in episodic memory in PWH. We included cross-sectional and longitudinal studies that provided episodic memory test scores and a formal assessment of DS expecting that episodic memory in PWH (A) be lower with comorbid DS; (B) negatively correlated with DS severity and incidence of clinical depression; and (C) declines over time with comorbid depression. Following PRIMSA guidelines, 3505 papers were identified, of which 44 studies were ultimately included. Meta-analysis demonstrated that immediate but not delayed recall were lower in PWH with DS than without DS, with small average effect sizes. An inverse relationship between DS severity and episodic memory performance emerged in about a quarter of the studies, with a higher likelihood in studies measuring incidence of clinically elevated DS. If observed, longitudinal memory decline was limited to moderately-severely depressed PWH. Our results suggest that prevention and treatment of clinical levels of depressive symptomatology in PWH remains a paramount target in HIV care with important implications for memory and likely other cognitive functions long-term.

The Bayesian framework conceptualizes human perception as a process of probabilistic inference, where the brain integrates prior expectations with incoming sensory evidence to construct a mental model of the world. Within this framework, several distinct theories-collectively termed the "simple Bayesian model"-suggest that perceptual atypicalities in autism stem from an imbalance between the precision of prior beliefs and sensory input. This study presents a systematic review and the first meta-analysis to evaluate empirical evidence for the simple Bayesian model. We synthesized 24 effect sizes from 23 eligible studies using a random-effects model to test its core predictions: that autistic individuals exhibit universally "broader" priors and/or heightened sensory precision compared to non-autistic controls. We found a significant, small-to-moderate overall effect in the predicted direction (Hedge's g = 0.37). However, heterogeneity across studies was large and significant and was not explained by any of the examined moderators: prior type (structural vs. contextual), stimulus type (social vs. nonsocial), task setting (implicit vs. explicit), cognitive domain (higher-level cognition vs. perception), or participant characteristics. Given the significant unexplained heterogeneity, our findings offer only limited support for a universal "simple Bayesian model" of autism. We conclude that future research should move beyond the simple Bayesian model to investigate more sophisticated, hierarchical Bayesian accounts of autism.

Empathy is the ability to recognise, share and understand others' emotional states. Increasing evidence suggests that empathy may be impacted by acquired brain injury (ABI), with consequences for social and emotional functioning. However, the literature has been characterised by inconsistent findings and small sample sizes. To address these limitations, we provide the first meta-analytic review of empathy in adults with ABI. Specifically, the review aimed to quantify the degree of impairment in adults with ABI across four empathy-related domains: cognitive, affective, empathic concern (e.g. sympathy) and personal distress. We also sought to estimate the prevalence of deficits in each area and explore whether demographic and injury factors moderate impairment. A systematic search yielded 29 studies measuring self-reported empathy in adults with ABI versus healthy, matched peers. A series of random-effects meta-analyses revealed moderate deficits in cognitive empathy (Hedges' g =  - 0.68, 95% CI [- 0.87, - 0.50]) and affective empathy (Hedges' g =  - 0.43, 95% CI [- 0.65, - 0.21]), as well as small-to-moderate deficits in empathic concern (Hedges' g =  - 0.38, 95% CI [- 0.63, - 0.13]). No significant difference was found for personal distress. We estimated the proportion of ABI participants scoring equal to or more than 1 SD below the normative mean to be 15.3-35.0%, depending on the empathy subcomponent. Our results highlight that empathy deficits may play an important role in functional or emotional difficulties post-brain injury. This demonstrates the need for routine clinical assessment of empathy in survivors of brain injury and the need to develop interventions which target both cognitive and affective components.

The Iowa Gambling Task (IGT) is a popular measure of risky decision-making, but to date, no formal quantitative reviews have been conducted, focused exclusively on IGT performance amongst individuals with acquired brain injury (ABI). Therefore, this meta-analytic study firstly explored performance differences between individuals with ABI vs controls. Second, we extended this comparison by investigating differences in IGT scoring and interpretive approaches (e.g., total score vs later block analysis). Finally, we explored potential IGT performance moderators (e.g., average age). A total of 25 studies, containing 39 samples (total n = 2188), were included. Overall findings suggested that the IGT is sensitive to the presence of ABI, particularly non-TBI and medically confirmed TBI, which becomes evident by block 2 of 5. Medium effect sizes were obtained for IGT total score, as well as indicators using later blocks only. Performance moderators such as population type and region influenced IGT performance, whilst average age, average education, and proportion of males did not. These results indicate that the IGT is sensitive to decision-making impairment following ABI, although we conclude that further research is needed to confirm the IGT's ability to detect impairment relative to specific brain regions.

Social cognition-the complex mental ability to perceive social stimuli and negotiate the social environment-has emerged as an important cognitive ability needed for social functioning, everyday functioning, and quality of life. Deficits in social cognition have been well documented in those with severe mental illness including schizophrenia and depression, those along the autism spectrum, and those with other brain disorders where such deficits profoundly impact everyday life. Moreover, subtle deficits in social cognition have been observed in other clinical populations, especially those that may have compromised non-social cognition (i.e., fluid intelligence such as memory). Among people living with HIV (PLHIV), 44% experience cognitive impairment; likewise, social cognitive deficits in theory of mind, prosody, empathy, and emotional face recognition/perception are gradually being recognized. This systematic review and meta-analysis aim to summarize the current knowledge of social cognitive ability among PLHIV, identified by 14 studies focused on social cognition among PLHIV, and provides an objective consensus of the findings. In general, the literature suggests that PLHIV may be at-risk of developing subtle social cognitive deficits that may impact their everyday social functioning and quality of life. The causes of such social cognitive deficits remain unclear, but perhaps develop due to (1) HIV-related sequelae that are damaging the same neurological systems in which social cognition and non-social cognition are processed; (2) stress related to coping with HIV disease itself that overwhelms one's social cognitive resources; or (3) may have been present pre-morbidly, possibly contributing to an HIV infection. From this, a theoretical framework is proposed highlighting the relationships between social cognition, non-social cognition, and social everyday functioning.

Transcranial magnetic stimulation (TMS) has been found to be promising in the neurorehabilitation of post-stroke patients. Aphasia and cognitive impairment (CI) are prevalent post-stroke; however, there is still a lack of consensus about the characteristics of interventions based on TMS and its neuropsychological and anatomical-functional benefits. Therefore, studies that contribute to creating TMS protocols for these neurological conditions are necessary. To analyze the evidence of the neuropsychological and anatomical-functional TMS effects in post-stroke patients with CI and aphasia and determine the characteristics of the most used TMS in research practice. The present study followed the PRISMA guidelines and included articles from PubMed, Scopus, Web of Science, ScienceDirect, and EMBASE databases, published between January 2010 and March 2023. In the 15 articles reviewed, it was found that attention, memory, executive function, language comprehension, naming, and verbal fluency (semantic and phonological) are the neuropsychological domains that improved post-TMS. Moreover, TMS in aphasia and post-stroke CI contribute to greater frontal activation (in the inferior frontal gyrus, pars triangularis, and opercularis). Temporoparietal effects were also found. The observed effects occur when TMS is implemented in repetitive modality, at a frequency of 1 Hz, in sessions of 30 min, and that last more than 2 weeks in duration. The use of TMS contributes to the neurorehabilitation process in post-stroke patients with CI and aphasia. However, it is still necessary to standardize future intervention protocols based on accurate TMS characteristics.

To effectively diagnose and treat subjective cognitive symptoms in post-acute sequalae of COVID-19 (PASC), it is important to understand objective cognitive impairment across the range of acute COVID-19 severity. Despite the importance of this area of research, to our knowledge, there are no current meta-analyses of objective cognitive functioning following non-severe initial SARS-CoV-2 infection. The aim of this meta-analysis is to describe objective cognitive impairment in individuals with non-severe (mild or moderate) SARS-CoV-2 cases in the post-acute stage of infection. This meta-analysis was pre-registered with Prospero (CRD42021293124) and utilized the PRISMA checklist for reporting guidelines, with screening conducted by at least two independent reviewers for all aspects of the screening and data extraction process. Fifty-nine articles (total participants = 22,060) with three types of study designs met our full criteria. Individuals with non-severe (mild/moderate) initial SARS-CoV-2 infection demonstrated worse objective cognitive performance compared to healthy comparison participants. However, those with mild (nonhospitalized) initial SARS-CoV-2 infections had better objective cognitive performance than those with moderate (hospitalized but not requiring ICU care) or severe (hospitalized with ICU care) initial SARS-CoV-2 infections. For studies that used normative data comparisons instead of healthy comparison participants, there was a small and nearly significant effect when compared to normative data. There were high levels of heterogeneity (88.6 to 97.3%), likely reflecting small sample sizes and variations in primary study methodology. Individuals who have recovered from non-severe cases of SARS-CoV-2 infections may be at risk for cognitive decline or impairment and may benefit from cognitive health interventions.