RDoC

RDoC
  • 文章类型: Journal Article
    目的:临床上焦虑的年轻人对情绪刺激过度警惕,难以将注意力从情绪刺激转移到非情绪刺激,提示认知控制对情绪的损害。然而,目前尚不清楚这种偏倚的神经底物是否在焦虑的临床与非临床范围内变化,还是因年龄而异.
    方法:7-17岁有临床焦虑(N=119)或没有焦虑诊断(N=41)的青少年在磁共振成像过程中与情绪面部干扰物匹配的情绪面部或匹配的形状,探测情绪处理和对情绪的认知控制,分别。从国家精神卫生研究所的研究领域标准框架构建,临床焦虑的年轻人被纳入诊断类别,在最小至亚临床严重程度范围内对未受临床影响的青少年进行采样.
    结果:在这两种情况下,与右下顶叶过度激活相关的焦虑严重程度,高度警惕的基质。大脑焦虑的关联也通过注意状态来区分;焦虑的严重程度与情绪处理(面部匹配)过程中左腹外侧前额叶皮层的更大激活以及在认知控制情绪(形状匹配)过程中左上颞沟和颞顶交界处的更大激活(以及较慢的反应)相关。年龄也调节了焦虑和对情绪的认知控制之间的关联,因此,对于年龄较小和平均年龄的儿童,焦虑与更大的右丘脑和双侧后扣带皮质激活相关,但不适合年长的年轻人。
    结论:大脑区域的异常功能与刺激驱动的对情绪分散者的注意力有关,可能会导致青少年焦虑。结果支持针对发育阶段量身定制的焦虑注意力调节干预措施的潜在效用。
    OBJECTIVE: Clinically anxious youth are hypervigilant to emotional stimuli and display difficulty shifting attention from emotional to nonemotional stimuli, suggesting impairments in cognitive control over emotion. However, it is unknown whether the neural substrates of such biases vary across the clinical-to-nonclinical range of anxiety or by age.
    METHODS: Youth aged 7 to 17 years with clinical anxiety (n = 119) or without an anxiety diagnosis (n = 41) matched emotional faces or matched shapes flanked by emotional face distractors during magnetic resonance imaging, probing emotion processing and cognitive control over emotion, respectively. Building from the National Institute of Mental Health Research Domain Criteria (RDoC) framework, clinically anxious youth were sampled across diagnostic categories, and non-clinically affected youth were sampled across minimal-to-subclinical severity.
    RESULTS: Across both conditions, anxiety severity was associated with hyperactivation in the right inferior parietal lobe, a substrate of hypervigilance. Brain-anxiety associations were also differentiated by attentional state; anxiety severity was associated with greater left ventrolateral prefrontal cortex activation during emotion processing (face matching) and greater activation in the left posterior superior temporal sulcus and temporoparietal junction (and slower responses) during cognitive control over emotion (shape matching). Age also moderated associations between anxiety and cognitive control over emotion, such that anxiety was associated with greater right thalamus and bilateral posterior cingulate cortex activation for children at younger and mean ages, but not for older youth.
    CONCLUSIONS: Aberrant function in brain regions implicated in stimulus-driven attention to emotional distractors may contribute to anxiety in youth. Results support the potential utility of attention modulation interventions for anxiety that are tailored to developmental stage.
    BACKGROUND: Dimensional Brain Behavior Predictors of CBT Outcomes in Pediatric Anxiety; https://clinicaltrials.gov; NCT02810171.
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  • 文章类型: Journal Article
    与没有NDC的个体的兄弟姐妹相比,患有神经发育疾病(NDC)的个体的兄弟姐妹经历了不同的挑战,并且具有独特的优势。本研究检查了有或没有神经发育疾病的个体的兄弟姐妹的属性和愿望,并分析了增长心态的定性反应和定量测量之间的关系,正价和负价,和心理健康诊断。采用了一种新颖的混合方法进行主题分析,以探索166个兄弟姐妹(75个NDC和91个对照,年龄在14-26岁之间,女性占66.27%)完成了一项在线调查,这是一项有关兄弟姐妹心理健康的大型研究的一部分。总体主题描述了自我实现和整合的过程,反映了兄弟姐妹在心理挑战中寻求了解自己和他人的旅程。它包含三个子主题:个人成长和身份形成;联系和归属;社会视角和全球意识。在研究领域标准(RDoC)框架内分析了定性响应,以及现象学和心理健康诊断之间的关联。NDC兄弟姐妹的反应中嵌入了较高的负价和较低的正价,和定量较低的自我报告的成长心态(即,关于个人成长能力的信念),与对照兄弟姐妹相比,这与自我报告的心理健康诊断相关。研究结果表明,临床实践可能专注于优化自我识别的优势,并为自我实现希望和抱负提供机会。同时为家庭提供支持,以减轻影响心理健康的生物生态因素。
    Siblings of individuals with neurodevelopmental conditions (NDCs) experience distinct challenges and have unique strengths compared to siblings of individuals without NDCs. The present study examined attributes and aspirations of siblings of individuals with and without neurodevelopmental conditions, and analyzed the association between qualitative responses and quantitative measures of growth mindset, positive and negative valence, and mental health diagnoses. A novel mixed methods thematic analysis was employed to explore the experiences of 166 siblings (75 NDC and 91 controls, aged 14-26, 66.27% female) completing an online survey as part of a larger study on sibling mental health. The overarching theme described The Process of Self-Actualization and Integration, reflecting the journey siblings undergo in seeking to understand themselves and others amidst psychological challenges. It encompassed three subthemes: Personal Growth and Identity Formation; Connection and Belonginess; and Societal Perspective and Global Consciousness. Qualitative responses were analyzed within a Research Domain Criteria (RDoC) framework, and associations between phenomenology and mental health diagnoses examined. NDC siblings had higher negative valence and lower positive valence embedded in their responses, and quantitatively lower self-reported growth mindset (i.e., beliefs about the capacity for personal growth), compared to control siblings, which correlated with self-reported mental health diagnoses. Findings suggest clinical practice may focus on optimizing self-identified strengths and offer opportunities for self-actualization of hopes and ambitions, while providing support for families to attenuate bioecological factors impacting mental health.
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  • 文章类型: Journal Article
    BACKGROUND: This pilot study aimed to assess patients\' cognitive functioning with the Polish version of the THINC-it tool and to analyze its association with self-reported quality of life (QOL).
    METHODS: Twenty-one patients (mean age: 37.8 ± 10.4) were assessed at baseline and after six weeks of a standard therapeutic outpatient program. Participants completed the World Health Organization QOL Questionnaire (WHOQOL-BREF) and the THINC-it tool at both visits. The tool consists of tasks evaluating working memory (SYMBOL CHECK), attention (SPOTTER), executive functions (TRIALS), and cognitive skills (CODEBREAKER).
    RESULTS: During the second visit, patients showed significant improvements in mean latency of correct responses of SPOTTER: p = 0.021, Cohen\'s d = 0.38 and in the Physical health domain: p = 0.007, Cohen\'s d = 0.37. The number of correct responses for CODEBREAKER was positively associated with the Physical health domain at visit 1 (r = 0.53, p = 0.014) and visit 2 (r = 0.42, p = 0.058). The number of correct responses at SYMBOL CHECK was positively related to QOL in the Environment domain only at visit 2 (r = 0.45, p = 0.042).
    CONCLUSIONS: These results suggest the THINC-it tool has utility as a cognitive measure in adults with schizophrenia in both clinical and research settings.
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  • 文章类型: Journal Article
    尽管诊断标准不重叠,内化和外化障碍显示出大量的合并症。这种共病是可归因于的,至少在某种程度上,诊断神经情感机制。单极抑郁和外化障碍的特征均在于纹状体的结构和功能受损以及对前扣带皮质(ACC)和其他额叶区域的投射。在这些区域中,较小的体积和减弱的奖励反应与快感和烦躁有关-情绪状态贯穿内在化和外在化光谱。相比之下,杏仁核体积较小和杏仁核功能减弱可区分外化障碍和内化障碍。鲜为人知,然而,关于这些区域内化-外化共病和脑容量之间的关联,或者这种模式是否因性别而异。使用诊断,研究领域标准(RDoC)-知情方法,我们评估异型(内化×外化)症状相互作用和纹状体之间的关联,杏仁核,青少年脑认知发育研究参与者的ACC量(N=6,971,平均年龄9.9岁,51.6%女性)。异型症状与男女的ACC体积有关,超越内化和外化的主要影响。然而,异型合并症与女孩较大的ACC量相关,但男孩的ACC容量较小。这些发现表明需要进一步研究和按性别进行诊断评估。
    Despite nonoverlapping diagnostic criteria, internalizing and externalizing disorders show substantial comorbidity. This comorbidity is attributable, at least in part, to transdiagnostic neuroaffective mechanisms. Both unipolar depression and externalizing disorders are characterized by structural and functional compromises in the striatum and its projections to the anterior cingulate cortex (ACC) and other frontal regions. Smaller volumes and dampened reward responding in these regions are associated with anhedonia and irritability - mood states that cut across the internalizing and externalizing spectra. In contrast, smaller amygdala volumes and dampened amygdala function differentiate externalizing disorders from internalizing disorders. Little is known, however, about associations between internalizing-externalizing comorbidity and brain volumes in these regions, or whether such patterns differ by sex. Using a transdiagnostic, research domain criteria (RDoC)-informed approach, we evaluate associations between heterotypic (Internalizing × Externalizing) symptom interactions and striatal, amygdalar, and ACC volumes among participants in the Adolescent Brain Cognitive Development study (N = 6,971, mean age 9.9 years, 51.6% female). Heterotypic symptoms were associated with ACC volumes for both sexes, over and above the main effects of internalizing and externalizing alone. However, heterotypic comorbidity was associated with larger ACC volumes for girls, but with smaller ACC volumes for boys. These findings suggest a need for further studies and transdiagnostic assessment by sex.
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  • 文章类型: Journal Article
    Alcohol use confers risk for suicidal thoughts and behaviors (ideation, attempt) in early adolescents. The Research Domain Criteria provides a framework for examination of multidimensional and modifiable risk factors. We examined distinct latent profiles based on patterns of positive valence (reward responsivity) and cognitive systems (neurocognition) from the ABCD Study (age 9−10, N = 10,414) at baseline enrollment. Longitudinal associations were determined between baseline positive valence and cognitive profiles and group classification (alcohol use, suicidal thoughts and behaviors, or their co-occurrence) two-years after initial assessment (ages 11−12). Three unique profiles of positive valence, cognition, alcohol use, and suicidal thoughts and behaviors were identified. Two baseline profiles predicted alcohol use and suicidal thoughts and behaviors, two-years after initial assessment. Low positive valence with high cognition (but low impulsivity) predicted alcohol use (OR = 1.414, p< 0.001), while high positive valence with low cognition (but high impulsivity) predicted suicidal thoughts and behaviors (OR = 1.25, p = 0.038), compared to average positive valence and cognition. Unique profiles of positive valence and cognitive systems among 9−12-year-olds may be predictive of alcohol use and suicidal thoughts and behaviors over a two-year period. Findings underscore the potential for trajectory research on positive valence and cognitive profiles to enhance prevention for early-adolescents.
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  • 文章类型: Journal Article
    缺陷型精神分裂症是精神分裂症的一种亚型,表现出原发性和持久性阴性症状(NS)。尽管最新的假设之一表明NS与受损动机之间存在关系,只有少数研究调查了缺陷型精神分裂症(DS)受试者的动机回路异常。我们的目的是研究DS中动机回路内的结构连通性。我们分析了46名精神分裂症(SCZ)受试者和35名健康对照(HC)的扩散张量成像(DTI)数据。使用缺陷综合征时间表将SCZ分类为DS(n=9)和非缺陷(NDS)(n=37)。检查了参与动机回路的选定大脑区域之间的连接指数(CI)和分数各向异性(FA)。DS,与NDS和HC相比,显示右杏仁核和背前岛叶皮层之间的CI增加,连接左伏隔核和后岛叶皮层的通路的FA增加。我们的结果支持先前的证据,即精神分裂症不同临床亚型的不同神经生物学改变。DS,与NDS和HC相比,可能会在涉及更新刺激值以指导目标导向行为的大脑区域中出现改变的修剪过程(与超连接性一致)。
    Deficit schizophrenia is a subtype of schizophrenia presenting primary and enduring negative symptoms (NS). Although one of the most updated hypotheses indicates a relationship between NS and impaired motivation, only a few studies have investigated abnormalities of motivational circuits in subjects with deficit schizophrenia (DS). Our aim was to investigate structural connectivity within motivational circuits in DS. We analyzed diffusion tensor imaging (DTI) data from 46 subjects with schizophrenia (SCZ) and 35 healthy controls (HCs). SCZ were classified as DS (n = 9) and non-deficit (NDS) (n = 37) using the Schedule for Deficit Syndrome. The connectivity index (CI) and the Fractional Anisotropy (FA) of the connections between selected brain areas involved in motivational circuits were examined. DS, as compared with NDS and HCs, showed increased CI between the right amygdala and dorsal anterior insular cortex and increased FA of the pathway connecting the left nucleus accumbens with the posterior insular cortex. Our results support previous evidence of distinct neurobiological alterations underlying different clinical subtypes of schizophrenia. DS, as compared with NDS and HCs, may present an altered pruning process (consistent with the hyperconnectivity) in cerebral regions involved in updating the stimulus value to guide goal-directed behavior.
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  • 文章类型: Journal Article
    与快感缺乏治疗反应相关的神经机制知之甚少。此外,尚无研究调查伴随着快感缺失的心理社会治疗的静息状态功能连接(rsFC)的变化.
    我们评估了一种新的心理治疗,快感缺失的行为激活疗法(BATA,n=38)相对于基于正念的认知疗法(MBCT,n=35)在无药物治疗中,诊断,一项平行随机对照试验中的无意义样本。参与者在之前完成了多达15个疗程的治疗和多达四次7TMRI扫描,during,和治疗后(n=185扫描)。生长曲线模型使用默认模式网络(DMN)内的平均感兴趣区域(ROI)到ROI连通性估计快感缺失和rsFC随时间的变化,额顶叶网络(FPN),显著性网络,奖励网络使用全网络种子到体素和ROI到ROI边缘分析进一步评估rsFC从治疗前到治疗后的变化。
    生长曲线模型显示,随着时间的推移,DMN和FPN内的快感缺失症状和平均rsFC显著减少,跨越BATA和MBCT。治疗之间的快感减少没有差异。人内,平均rsFC的变化与快感缺失的变化无关。人与人之间,高于平均FPNrsFC与不同时间点的快感缺乏相关.随着时间的推移,种子到体素和边缘rsFC分析证实了DMN内以及DMN和FPN之间的减少,穿过样本。
    DMN内rsFC的减少,FPN,在这些网络之间,在两种针对快感缺乏症的社会心理治疗中,快感缺乏症的改善同时发生。未来使用等待名单对照组进行的快感缺乏症临床试验应消除对rsFC的治疗与时间相关影响的歧义。
    The neural mechanisms associated with anhedonia treatment response are poorly understood. Additionally, no study has investigated changes in resting-state functional connectivity (rsFC) accompanying psychosocial treatment for anhedonia.
    We evaluated a novel psychotherapy, Behavioral Activation Therapy for Anhedonia (BATA, n = 38) relative to Mindfulness-Based Cognitive Therapy (MBCT, n = 35) in a medication-free, transdiagnostic, anhedonic sample in a parallel randomized controlled trial. Participants completed up to 15 sessions of therapy and up to four 7T MRI scans before, during, and after treatment (n = 185 scans). Growth curve models estimated change over time in anhedonia and in rsFC using average region-of-interest (ROI)-to-ROI connectivity within the default mode network (DMN), frontoparietal network (FPN), salience network, and reward network. Changes in rsFC from pre- to post-treatment were further evaluated using whole-network seed-to-voxel and ROI-to-ROI edgewise analyses.
    Growth curve models showed significant reductions in anhedonia symptoms and in average rsFC within the DMN and FPN over time, across BATA and MBCT. There were no differences in anhedonia reductions between treatments. Within-person, changes in average rsFC were unrelated to changes in anhedonia. Between-person, higher than average FPN rsFC was related to less anhedonia across timepoints. Seed-to-voxel and edgewise rsFC analyses corroborated reductions within the DMN and between the DMN and FPN over time, across the sample.
    Reductions in rsFC within the DMN, FPN, and between these networks co-occurred with anhedonia improvement across two psychosocial treatments for anhedonia. Future anhedonia clinical trials with a waitlist control group should disambiguate treatment versus time-related effects on rsFC.
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  • 文章类型: Journal Article
    Disparate diagnostic categories from the Diagnostic and Statistical Manual of Mental Disorders (DSM), including generalized anxiety disorder, major depressive disorder and post-traumatic stress disorder, share common behavioral and phenomenological dysfunctions. While high levels of comorbidity and common features across these disorders suggest shared mechanisms, past research in psychopathology has largely proceeded based on the syndromal taxonomy established by the DSM rather than on a biologically-informed framework of neural, cognitive and behavioral dysfunctions. In line with the National Institute of Mental Health\'s Research Domain Criteria (RDoC) framework, we present a Human Connectome Study Related to Human Disease that is intentionally designed to generate and test novel, biologically-motivated dimensions of psychopathology. The Dimensional Connectomics of Anxious Misery study is collecting neuroimaging, cognitive and behavioral data from a heterogeneous population of adults with varying degrees of depression, anxiety and trauma, as well as a set of healthy comparators (to date, n = 97 and n = 24, respectively). This sample constitutes a dataset uniquely situated to elucidate relationships between brain circuitry and dysfunctions of the Negative Valence construct of the RDoC framework. We present a comprehensive overview of the eligibility criteria, clinical procedures and neuroimaging methods of our project. After describing our protocol, we present group-level activation maps from task fMRI data and independent components maps from resting state data. Finally, using quantitative measures of neuroimaging data quality, we demonstrate excellent data quality relative to a subset of the Human Connectome Project of Young Adults (n = 97), as well as comparable profiles of cortical thickness from T1-weighted imaging and generalized fractional anisotropy from diffusion weighted imaging. This manuscript presents results from the first 121 participants of our full target 250 participant dataset, timed with the release of this data to the National Institute of Mental Health Data Archive in fall 2020, with the remaining half of the dataset to be released in 2021.
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  • 文章类型: Journal Article
    The present study aimed to objectively examine the Research Domain Criteria (RDoC) subconstructs of reward anticipation and initial response to reward in adult suicide attempters, compared with nonattempters, using electroencephalography (EEG) and event-related potentials (ERPs) within the context of the RDoC-recommended experimental paradigms for these subconstructs.
    Participants had either a history of at least 1 suicide attempt (n = 30) or no history of attempting suicide (n = 30). They completed diagnostic interviews, self-report questionnaires, and 2 computer-based tasks-the monetary incentive delay task and the doors task-during which continuous EEG was recorded. Temporospatial principal component analysis was used to isolate each of the ERP components of interest from other temporally or spatially overlapping components. Exploratory time-frequency analyses were also conducted to supplement the ERP analyses.
    Suicide attempters, compared with nonattempters, exhibited specific deficits in reward anticipation (i.e., blunted cue-P3 ERP during the monetary incentive delay task) and in initial response to reward (i.e., reduced feedback-related delta power in the gain condition of the doors task). These results were at least partially independent of current symptoms or diagnoses of depression and anxiety.
    These findings constitute an important step in obtaining a more fine-grained understanding of the specific reward-related abnormalities that might contribute to suicide risk.
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  • 文章类型: Journal Article
    国家精神卫生研究所(NIMH)的研究领域标准(RDoC)倡议建立了理解精神病学结构的维度框架。对奖励达成的初始反应(IRRA)被确定为与几种精神疾病相关的维度结构。当前的研究旨在(1)检查IRRA作为儿童及其父母的精神病理学和损害的预测因子,(2)研究性别和血统对IRRA与精神病理学之间关系的潜在影响。参与者包括1127名6至12岁的儿童和1018名他们的父母。父母和孩子完成了IRRA的自我报告措施。使用成人自我报告测量精神病理学和损伤,以及家长报告和半结构化儿童访谈。在成年人中,IRRA很重要,但谦虚地说,与适应性功能有关。在儿童中,IRRA很重要,但谦虚地说,总的来说,学校,业余时间,home,和同伴功能。研究结果表明,IRRA可能有助于理解成人和儿童的适应性功能,然而,它可能对理解精神病理学的具体维度没有帮助。此外,在检查IRRA与精神病理学和功能的关系时,应考虑血统。
    The Research Domain Criteria (RDoC) initiative of the National Institute of Mental Health (NIMH) established a dimensional framework for understanding psychiatric constructs. Initial Responsiveness to Reward Attainment (IRRA) was identified as a dimensional construct relevant to several psychiatric disorders. The current study aimed to (1) examine IRRA as a predictor of psychopathology and impairment in children and their parents, and (2) examine the potential effects of sex and ancestry on the relationship between IRRA and psychopathology. Participants included 1127 children ages 6 to 12, and 1018 of their parents. Parents and children completed self-report measures of IRRA. Psychopathology and impairment were measured using self-report for adults, and parent-report and semi-structured interview for children. In adults, IRRA was significantly, but modestly, related to adaptive functioning. In children, IRRA was significantly, but modestly, related to overall, school, spare time, home, and peer functioning. Findings suggest IRRA may be a helpful construct for understanding adaptive functioning in adults and children, however it may be less helpful for understanding specific dimensions of psychopathology. Additionally, ancestry should be taken into consideration when examining how IRRA relates to psychopathology and functioning.
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