Research domain criteria

研究领域标准
  • 文章类型: Journal Article
    背景:自闭症谱系条件(ASC)和定量自闭症特征(QAT)与感觉症状有关,这可能会导致焦虑,并对社会和认知发展产生不利影响。虽然感官症状可以发生在所有的感官,特定的感觉模式作为自闭症表型和焦虑因素的相对作用尚不清楚。这项研究的目的是检查哪些感觉症状最能预测高度焦虑。
    方法:我们招募了257名6至11岁儿童的女性主要照顾者(49%的女孩)进行问卷调查,其中包括经典QATs的父母报告措施(社会,交际,和刚性),自闭症相关的感觉运动症状(视觉,听觉,触觉,嗅觉,味觉,前庭,本体感受,和电机),和焦虑症状。首先,贝叶斯随机搜索变量选择(SSVS)用于识别特定QAT的最可能的感觉运动预测因子以及已诊断的ASC。然后,选择的预测因子被用在另一个SSVS中,使用焦虑症状作为因变量,确定哪些与自闭症相关的感觉运动症状最有力地预测了焦虑。最后,使用线性回归估计焦虑相关感觉症状的效应大小.
    结果:我们发现听觉症状和运动困难是ASC诊断的最具预测性的。发育性运动困难也与所有个人QAT密切相关,而听觉症状更有选择性地预测刚性特征。触觉症状有力地预测了社交互动QAT,本体感受症状可预测交际QAT。听觉和嗅觉处理困难最强烈地预测了焦虑结果。
    结论:结果支持对神经发育人群的声音和听力的抱怨保持警惕的临床重要性,并且听觉处理困难可以被评估为患有和未患有自闭症的儿童的心理健康不良的早期标志。嗅觉处理差异似乎是与ASC或QAT相关程度较低的焦虑标记,而运动困难与自闭症高度相关,但与焦虑结局的相关性不强。我们建议,未来的研究可能集中在神经发育中枢听觉处理功能障碍的机制和后果及其与焦虑症的潜在关系上。
    BACKGROUND: Autism spectrum conditions (ASC) and quantitative autistic traits (QATs) are associated with sensory symptoms, which may contribute to anxiety and adversely affect social and cognitive development. Although sensory symptoms can occur across all senses, the relative roles of specific sensory modalities as contributors to the autistic phenotype and to anxiety are not well understood. The objective of this study was to examine which sensory symptoms were most predictive of high anxiety.
    METHODS: We recruited 257 female primary caregivers of children aged 6 to 11 years (49% girls) to a questionnaire study comprising parent-report measures for classical QATs (social, communicative, and rigid), autism-related sensorimotor symptoms (visual, auditory, tactile, olfactory, gustatory, vestibular, proprioceptive, and motor), and anxiety symptoms. First, Bayesian stochastic search variable selection (SSVS) was used to identify the most probable sensorimotor predictors of specific QATs as well as diagnosed ASC. Then, the selected predictors were used in another SSVS, using anxiety symptoms as a dependent variable, to identify which of the autism-relevant sensorimotor symptoms were most robustly predictive of anxiety. Finally, the effect sizes of anxiety-related sensory symptoms were estimated with linear regressions.
    RESULTS: We found that auditory symptoms and motor difficulties were most predictive of ASC diagnosis. Developmental motor difficulties were also strongly related to all individual QATs, whereas auditory symptoms were more selectively predictive of rigid traits. Tactile symptoms robustly predicted social interaction QATs, and proprioceptive symptoms predicted communicative QATs. Anxiety outcomes were most strongly predicted by difficulties with auditory and olfactory processing.
    CONCLUSIONS: The results support the clinical importance of being alert to complaints about sounds and hearing in neurodevelopmental populations, and that auditory processing difficulties may be evaluated as an early marker of poor mental health in children with and without diagnosed autism. Olfactory processing differences appeared to be an anxiety marker less strongly associated with ASC or QATs, while motor difficulties were highly autism-relevant but not equally strongly associated with anxiety outcomes. We suggest that future studies may focus on the mechanisms and consequences of neurodevelopmental central auditory processing dysfunction and its potential relationship to anxiety disorders.
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  • 文章类型: Journal Article
    几十年来,美国国家心理健康研究所(NIMH)一直支持精神分裂症认知障碍的基础和转化研究。本文介绍了该研究所对认知评估和干预研究的持续承诺,正如三项标志性举措所反映的那样:改善精神分裂症认知的测量和治疗研究;改善精神分裂症认知的认知神经科学治疗研究;研究领域标准以及涵盖基础实验研究的相关资助公告,疗效和有效性比较试验,以及旨在促进现实世界治疗环境中的认知保健的实施研究。我们讨论了自2000年代初以来科学和公共卫生政策的趋势如何影响NIMH治疗发展活动,导致更多的关注(1)反映最终用户对拟议研究的效用的观点的包容性团队;(2)测量离散的神经认知过程,以告知有针对性的干预措施;(3)产生有关推定疾病机制的有用信息的临床试验,有希望的治疗目标,和下游临床效果;(4)寻求可行和有效的精神病认知干预措施的“生产紧迫性”。采用这些原则的程序催化了认知测量,药物开发,以及旨在改善精神分裂症患者神经认知和社区功能的行为干预方法。NIMH将继续支持创新和有影响力的研究者发起的研究,促进以患者为中心的研究,临床有效,不断改善精神病患者的认知保健。
    For several decades the National Institute of Mental Health (NIMH) has supported basic and translational research into cognitive impairment in schizophrenia. This article describes the Institute\'s ongoing commitment to cognitive assessment and intervention research, as reflected by three signature initiatives-Measurement and Treatment Research to Improve Cognition in Schizophrenia; Cognitive Neuroscience Treatment Research to Improve Cognition in Schizophrenia; and Research Domain Criteria-and related funding announcements that span basic experimental studies, efficacy and comparative effectiveness trials, and implementation research designed to promote cognitive healthcare in real-world treatment settings. We discuss how trends in science and public health policy since the early 2000s have influenced NIMH treatment development activities, resulting in greater attention to (1) inclusive teams that reflect end-user perspectives on the utility of proposed studies; (2) measurement of discrete neurocognitive processes to inform targeted interventions; (3) clinical trials that produce useful information about putative illness mechanisms, promising treatment targets, and downstream clinical effects; and (4) \"productive urgency\" in pursuing feasible and effective cognitive interventions for psychosis. Programs employing these principles have catalyzed cognitive measurement, drug development, and behavioral intervention approaches that aim to improve neurocognition and community functioning among persons with schizophrenia. NIMH will maintain support for innovative and impactful investigator-initiated research that advances patient-centered, clinically effective, and continuously improving cognitive health care for persons with psychotic disorders.
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  • 文章类型: Journal Article
    背景动机失调在几种精神疾病中很常见。然而,对动机和所涉及的区域大脑区域之间的关系知之甚少。我们评估了精神分裂症患者的脑微结构特征与因果关系取向之间的关系,抑郁症(MDD),使用扩散峰度成像(DKI)技术和双相情感障碍(BD)。方法40例MDD患者,36与BD,30例精神分裂症患者接受了DKI治疗,并使用一般因果关系量表(GCOS)进行了评估。我们分析了DKI指数和GCOS分量表。结果精神病患者的GCOS自主取向得分与前额区平均峰度(MK)值呈显著正相关,眶额叶区域,和后扣带皮质。当分别按疾病和性别进行分析时,GCOS自主性定向评分与经诊断的左前额叶区域MK值呈正相关,尤其是女性MDD患者,BD,和精神分裂症。结论精神分裂症患者的内在动机与左前额叶皮质MK值之间存在相似的关联。MDD,BD。这些疾病之间这种关联的共性可能导致发现用于精神病学临床研究的新生物标志物。
    Background Motivation dysregulation is common in several psychiatric disorders. However, little is known about the relationships between motivation and the regional brain areas involved. We evaluated the relationships between brain microstructural features and causality orientation in patients with schizophrenia, major depressive disorder (MDD), and bipolar disorder (BD) using diffusional kurtosis imaging (DKI) techniques. Methods Forty patients with MDD, 36 with BD, and 30 with schizophrenia underwent DKI and assessment using the General Causality Orientation Scale (GCOS). We analyzed the DKI index and the GCOS subscales. Results The psychiatric patients showed significant positive correlations between the GCOS-autonomy orientation score and the mean kurtosis (MK) values in the prefrontal regions, orbitofrontal regions, and posterior cingulate cortex. When the analyses were performed separately by disease and gender, a positive correlation was found between the GCOS-autonomy orientation score and the MK values in the left prefrontal regions transdiagnostically, especially among female patients with MDD, BD, and schizophrenia. Conclusions A similar association between intrinsic motivation and MK value in the left prefrontal cortex was suggested in patients with schizophrenia, MDD, and BD. The commonality of this association among these disorders might lead to the discovery of a new biomarker for psychiatric clinical research.
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  • 文章类型: Journal Article
    分裂型是指反映精神分裂症责任的潜在人格组织。因为分裂是一个多维结构,精神分裂症患者的行为和神经生物学特征各不相同。在这篇文章中,我们选择性地回顾了精神分裂症患者的神经心理学和神经生物学特征,专注于阴性分裂型。提供了阴性分裂型神经心理学表现改变的经验证据。我们还涵盖了正价的研究领域标准领域,社会过程,和感觉运动系统。此外,我们系统地总结了负分裂型的神经生物学相关结构,静息状态,和基于任务的神经水平,以及神经化学水平。严格审查了证据的趋同和不一致。关于理论和临床意义,我们认为,阴性分裂型代表了研究不同精神疾病的神经心理学和神经生物学的有用组织框架。
    这篇透视论文提供了经验证据,表明分裂型,尤其是阴性分裂型,与正价的改变有关,社会过程,和感觉运动系统领域在研究领域标准(RDoC)内。这篇透视论文还系统地总结了负分裂型的神经生物学相关结构,静息状态,和基于任务的神经水平,以及神经化学水平。我们认为,阴性精神分裂症是研究不同精神疾病的神经心理学和神经生物学的有用组织框架。
    Schizotypy refers to a latent personality organization that reflects liability to schizophrenia. Because schizotypy is a multidimensional construct, people with schizotypy vary in behavioral and neurobiological features. In this article, we selectively review the neuropsychological and neurobiological profiles of people with schizotypy, with a focus on negative schizotypy. Empirical evidence is presented for alterations of neuropsychological performance in negative schizotypy. We also cover the Research Domain Criteria domains of positive valence, social process, and sensorimotor systems. Moreover, we systematically summarize the neurobiological correlates of negative schizotypy at the structural, resting-state, and task-based neural levels, as well as the neurochemical level. The convergence and inconsistency of the evidence are critically reviewed. Regarding theoretical and clinical implications, we argue that negative schizotypy represents a useful organizational framework for studying neuropsychology and neurobiology across different psychiatric disorders.
    This perspective paper provides empirical evidence to show that schizotypy, and especially negative schizotypy, are associated with alterations of positive valence, social process, and sensorimotor systems domains within the Research Domain Criteria (RDoC). This perspective paper also systematically summarizes the neurobiological correlates of negative schizotypy at the structural, resting-state, and task-based neural levels, as well as the neurochemical level. We argue that negative schizotypy represents a useful organizational framework for studying neuropsychology and neurobiology across different psychiatric disorders.
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  • 文章类型: Journal Article
    背景:了解压力的神经生物学效应对于解决重度抑郁症(MDD)的病因至关重要。使用涉及具有不同MDD风险程度的个体的维度方法,我们研究了(1)急性应激对皮质-皮质和皮质-皮质下功能连接(FC)的影响,以及(2)这些效应如何与基因表达和受体图谱相关。
    方法:在115名参与者中(37名对照,39汇出的MDD,39当前MDD),我们在蒙特利尔影像应激任务期间评估了应激对FC的影响.使用偏最小二乘回归,我们研究了Allen人脑图谱中表达与应激相关FC改变的解剖模式相关的基因.最后,我们将应激相关的FC变化图与来自正电子发射断层扫描的阿片样物质和GABA-A受体分布图相关联。
    结果:结果揭示了压力对整体皮质连通性的强大影响,额叶和注意力网络中的全局FC增加,而中间默认模式网络中的全局FC减少。此外,尾状FC出现强劲增加,壳核和杏仁核具有来自腹侧注意力/显着性网络的区域,额顶叶网络和运动网。这些区域显示了参与细胞间信号传导的基因的优先表达(OPRM1,OPRK1,SST,GABRA3,GABRA5),类似于以前的遗传性MDD研究。
    结论:急性应激改变了整体皮质连通性,并增加了皮质区域的纹状体连通性,这些皮质区域表达先前与MDD成像异常相关的基因,并且富含μ-和κ-阿片受体。这些发现指出了在应激反应下重叠的电路,奖励,MDD。
    BACKGROUND: Understanding the neurobiological effects of stress is critical for addressing the etiology of major depressive disorder (MDD). Using a dimensional approach involving individuals with differing degree of MDD risk, we investigated 1) the effects of acute stress on cortico-cortical and subcortical-cortical functional connectivity (FC) and 2) how such effects are related to gene expression and receptor maps.
    METHODS: Across 115 participants (37 control, 39 remitted MDD, 39 current MDD), we evaluated the effects of stress on FC during the Montreal Imaging Stress Task. Using partial least squares regression, we investigated genes whose expression in the Allen Human Brain Atlas was associated with anatomical patterns of stress-related FC change. Finally, we correlated stress-related FC change maps with opioid and GABAA (gamma-aminobutyric acid A) receptor distribution maps derived from positron emission tomography.
    RESULTS: Results revealed robust effects of stress on global cortical connectivity, with increased global FC in frontoparietal and attentional networks and decreased global FC in the medial default mode network. Moreover, robust increases emerged in FC of the caudate, putamen, and amygdala with regions from the ventral attention/salience network, frontoparietal network, and motor networks. Such regions showed preferential expression of genes involved in cell-to-cell signaling (OPRM1, OPRK1, SST, GABRA3, GABRA5), similar to previous genetic MDD studies.
    CONCLUSIONS: Acute stress altered global cortical connectivity and increased striatal connectivity with cortical regions that express genes that have previously been associated with imaging abnormalities in MDD and are rich in μ and κ opioid receptors. These findings point to overlapping circuitry underlying stress response, reward, and MDD.
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  • 文章类型: Systematic Review
    神经科学为揭示物质使用障碍(SUD)的机制做出了贡献。下一个前沿是利用这些机制作为积极的目标,为SUD的治疗和预防创造更有效的干预措施。最近从儿童早期开始的大规模队列研究正在产生多层次的基于神经科学的信息,这些信息有可能为未来预防策略的发展和完善提供信息。然而,仍然没有可用的公认框架来指导将这些多层次数据集纳入预防干预措施。研究领域标准(RDoC)提供了一个基于神经科学的多系统框架,非常适合促进神经生物学机制转化为适合预防性干预的行为领域。我们提出了一种新的基于RDoC的预防科学框架,并对现有的预防性干预措施进行了调整。通过对使用以人为本的青少年药物/酒精预防方法的随机对照试验的系统评价,我们确定了22种独特的预防性干预措施.通过将这22种干预措施分成RDoC领域,我们提出了不同的神经认知轨迹,这些轨迹被认为是SUD的前兆或危险因素,成为目标,从事和修改以有效预防成瘾。
    Neuroscience has contributed to uncover the mechanisms underpinning substance use disorders (SUD). The next frontier is to leverage these mechanisms as active targets to create more effective interventions for SUD treatment and prevention. Recent large-scale cohort studies from early childhood are generating multiple levels of neuroscience-based information with the potential to inform the development and refinement of future preventive strategies. However, there are still no available well-recognized frameworks to guide the integration of these multi-level datasets into prevention interventions. The Research Domain Criteria (RDoC) provides a neuroscience-based multi-system framework that is well suited to facilitate translation of neurobiological mechanisms into behavioral domains amenable to preventative interventions. We propose a novel RDoC-based framework for prevention science and adapted the framework for the existing preventive interventions. From a systematic review of randomized controlled trials using a person-centered drug/alcohol preventive approach for adolescents, we identified 22 unique preventive interventions. By teasing apart these 22 interventions into the RDoC domains, we proposed distinct neurocognitive trajectories which have been recognized as precursors or risk factors for SUDs, to be targeted, engaged and modified for effective addiction prevention.
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  • 文章类型: Journal Article
    从一开始,发展和精神病理学理论家试图揭示儿童心理健康挑战的最早风险形式,为了防止更严重的发展,精神病理学的棘手表现。大型家庭风险登记处加深了我们对早期,可以预防或减轻神经发育疾病挑战性症状表达的潜在可改变因素,和类似的登记册已经提出,以促进对ADHD和相关表型的理解。来自单站点研究的数据,主要集中在围产期暴露于母亲情绪障碍,揭示儿童心理病理学的一个强有力的预测因子是父母的心理病理学。然而,精神病理学风险的早期发育轨迹可能会在怀孕期间使用综合诊断方法更好地捕获,捕捉全方位的心理健康症状。我们在这里描述了对产前开始的父母心理健康注册表的需求,其中包括一系列心理健康风险的诊断指标的深层行为表型,以预防儿童心理病理学。该注册表有可能发现儿童期精神病理学风险的途径,并支持发现针对预防和干预的新机制。
    From its inception, development and psychopathology theorists have sought to uncover the earliest forms of risk for mental health challenges in children, to prevent the development of more severe, intractable manifestations of psychopathology. Large familial risk registries have advanced our understanding of early, potentially modifiable factors that could prevent or mitigate the expression of challenging symptoms of neurodevelopmental conditions, and similar registries have been proposed to advance understanding of ADHD and related phenotypes. Data from single-site studies, largely focused on perinatal exposure to maternal mood disorders, reveal that a robust predictor of child psychopathology is parental psychopathology. However, early developmental trajectories of psychopathology risk may be better captured using transdiagnostic approaches in pregnancy, capturing the full range of mental health symptoms. We describe here the need for a parental mental health registry that begins prenatally that includes deep behavioral phenotyping across a range of transdiagnostic indicators of mental health risk to prevent psychopathology in children. This registry has the potential to uncover pathways to psychopathology risk in childhood and support the discovery of novel mechanisms to be targeted for prevention and intervention.
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  • 文章类型: Journal Article
    压力的心理生理学研究正在迅速扩大,但该领域缺乏一个清晰的综合框架来帮助将研究结果转化为经验支持的压力干预措施。研究领域标准(RDoC)是探索整合压力研究框架的绝佳候选者。RDoC框架是一个维度,多模式的精神病理学方法被提议作为国际疾病分类(ICD)和诊断和统计手册(DSM)使用的分类方法的替代方法。本文的目的是探索RDoC作为将心理生理学研究整合到压力治疗干预中的框架。RDoC由六个域组成:负价系统,正价系统,认知系统,社会进程系统,唤醒/调节系统,和感觉运动系统,并提供了一个极好的结构,用于整合包括生理学在内的多个功能层面的信息,行为,和自我报告,以及基因,分子,细胞,和大脑回路。使用RDoC框架整合压力的心理生理学研究可以指导和扩大压力管理和心理治疗干预。首先,RDoC提供了一个明确的基础,概念化的应激反应的重要概念,如同种异体和适应。从这个角度来看,在理解身体对生命威胁和挑战的反应时,术语“同种异体反应”或“适应反应”比“应激反应”更具描述性。第二,心理生理学方法可以在生物反馈和正念等方式的背景下使用,以收集心理生理学数据,然后将这些数据整合到更广泛的治疗框架中。心率变异性(HRV)生物反馈被更频繁地用作压力管理和心理治疗的治疗干预包的一部分。和HRV数据也用于提供治疗效果的结果证据。正念实践通常与压力管理和心理治疗结合使用,和心理生理数据(HRV,脑电图,血压,等。)经常被收集来探索和理解身心关系。总之,缺乏一个明确的框架来评估和理解身心功能限制了当前的压力研究和干预措施。RDoC提供了一个强大的框架来评估和整合生理和心理数据,并改善压力干预。
    Research on the psychophysiology of stress is expanding rapidly, but the field lacks a clear integrative framework to help translate research findings into empirically supported stress interventions. The Research Domain Criteria (RDoC) is an excellent candidate to explore as a framework to integrate stress research. The RDoC framework is a dimensional, multi-modal approach to psychopathology proposed as an alternative to categorical approaches used by the International Classification of Diseases (ICD) and the Diagnostic and Statistical Manual (DSM). The goal of this paper is to explore the RDoC as a framework to integrate psychophysiology research into therapeutic interventions for stress. The RDoC consists of six domains: negative valence systems, positive valence systems, cognitive systems, social processes systems, arousal/regulatory systems, and sensorimotor systems, and provides an excellent structure for integrating information from multiple levels of functioning including physiology, behavior, and self-report, as well as genes, molecules, cells, and brain circuits. Integrating psychophysiological research on stress using the RDoC framework can direct and amplify stress management and psychotherapeutic interventions. First, the RDoC provides a clear foundation for conceptualizing the stress response in terms of important concepts such as allostasis and adaptation. In this perspective, the terms \"allostatic response\" or \"adaptation response\" are more descriptive terms than \"stress response\" in understanding bodily responses to life threats and challenges. Second, psychophysiological approaches can be used in the context of modalities such as biofeedback and mindfulness to both collect psychophysiological data and then integrate that data into a broader therapeutic framework. Heart rate variability (HRV) biofeedback is being used more frequently as part of a therapeutic intervention package with stress management and psychotherapy, and HRV data is also used to provide outcome evidence on the efficacy of treatment. Mindfulness practices are commonly used in combination with stress management and psychotherapy, and psychophysiological data (HRV, EEG, blood pressure, etc.) is often collected to explore and understand mind/body relationships. In conclusion, the lack of a clear framework to assess and understand mind/body functioning limits current stress research and interventions. The RDoC provides a strong framework to assess and integrate physiological and psychological data and improve stress interventions.
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  • 文章类型: Journal Article
    抑郁症状在老年人中很常见,并经常与其他心理健康问题共同发生。然而,关于抑郁症状领域及其与其他疾病的关联的知识是有限的。这项研究检查了抑郁症状领域和与焦虑的关联,认知,和孤独。
    从香港社区招募了3,795名60岁及以上的参与者。他们被评估抑郁症状(患者健康问卷-9[PHQ-9]),焦虑(广泛性焦虑症7项),孤独(加州大学洛杉矶分校3项),和认知(蒙特利尔认知评估5分钟协议)。计算了概要描述性统计数据,其次是PHQ-9的验证性因素分析。多指标多原因分析用于检查一般样本中的精神健康状况与基于抑郁症状严重程度的亚组之间的关联。
    基于研究领域标准的4因素模型显示了PHQ-9的最佳模型拟合(χ2/df=10.63,近似均方根误差=0.05,比较拟合指数=0.96,塔克-刘易斯指数=0.93)。调整人口统计后,4个抑郁症状领域与焦虑有差异,孤独,以及不同抑郁严重程度组的认知。负价系统和内化域(NVS-I;内和自残)始终与焦虑(β=0.45,0.44)和孤独(β=0.11,0.27)相关,无论抑郁严重程度如何(处于风险/轻度vs中度和更严重,分别,所有p<.001)。
    抑郁的NVS-I域与焦虑和孤独之间的一致关联值得关注。需要同时考虑抑郁症状领域和症状严重程度,以设计更个性化的护理。
    NCT03593889。
    UNASSIGNED: Depressive symptoms are common in older adults, and often co-occur with other mental health problems. However, knowledge about depressive symptom-domains and their associations with other conditions is limited. This study examined depressive symptom-domains and associations with anxiety, cognition, and loneliness.
    UNASSIGNED: A sample of 3,795 participants aged 60 years and older were recruited from the community in Hong Kong. They were assessed for depressive symptoms (Patient Health Questionnaire-9 [PHQ-9]), anxiety (Generalized Anxiety Disorder 7-item), loneliness (UCLA 3-item), and cognition (Montreal Cognitive Assessment 5-Minute Protocol). Summary descriptive statistics were calculated, followed by confirmatory factor analysis of PHQ-9. Multiple Indicators Multiple Causes analysis was used to examine the associations between mental health conditions in the general sample and subgroups based on depressive symptom severity.
    UNASSIGNED: A 4-factor model based on the Research Domain Criteria showed the best model fit of PHQ-9 (χ2/df = 10.63, Root-Mean-Square Error of Approximation = 0.05, Comparative Fit Index = 0.96, Tucker-Lewis Index = 0.93). After adjusting for demographics, 4 depressive symptom-domains were differentially associated with anxiety, loneliness, and cognition across different depression severity groups. The Negative Valance Systems and Internalizing domain (NVS-I; guilt and self-harm) were consistently associated with anxiety (β = 0.45, 0.44) and loneliness (β = 0.11, 0.27) regardless of depression severity (at risk/mild vs moderate and more severe, respectively, all p < .001).
    UNASSIGNED: The consistent associations between the NVS-I domain of depression with anxiety and loneliness warrant attention. Simultaneous considerations of depressive symptom-domains and symptom severity are needed for designing more personalized care.
    UNASSIGNED: NCT03593889.
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  • 文章类型: Journal Article
    背景:动机缺陷是多种精神和神经退行性疾病共有的常见症状。基于努力的决策任务是评估动机状态的可翻译方法。该任务的大部分临床前验证来自大鼠的急性药理学操作。然而,小鼠目前提供了一个更好的遗传工具包来研究风险基因和表型模型。尽管如此,在这种类型的动机任务中,他们的行为特征有限。
    目标:这里,我们研究了奖励努力(EfR)任务作为小鼠动机状态的一种衡量指标,该指标使用了先前显示可调节大鼠和人类基于努力的决策的药物.
    方法:使用雄性C57bl/6j小鼠,我们测试调节DA传播的药物的作用。我们还测试了CP101-606的效果,该CP101-606不直接通过DA调节起作用,但已显示出对动机状态的有益效果。最后,我们测试任务对慢性皮质酮(CORT)治疗的敏感性。
    结果:安非他明,哌醋甲酯,和CP101606在小鼠中增加了高价值奖励的高努力反应,而氟哌啶醇的给药降低了高努力反应。令人惊讶的是,丁苯那嗪在测试的剂量下没有作用。慢性,低剂量CORT消耗不会改变任务表现.
    结论:这些数据表明,EfR任务对小鼠的急性多巴胺能调节和NR2B选择性拮抗作用敏感。然而,它可能对非急性表型模型缺乏敏感性.需要进一步的工作来证明任务在这种情况下的实用性。
    BACKGROUND: Motivational deficits are a common symptom shared across multiple psychiatric and neurodegenerative disorders. Effort-based decision-making tasks are a translatable method for assessing motivational state. Much of the preclinical validation of the task derives from acute pharmacological manipulations in rats. However, mice currently offer a greater genetic toolkit to study risk genes and phenotypic models. Despite this, there is limited characterisation of their behaviour in this type of motivation task.
    OBJECTIVE: Here, we investigate the effort for reward (EfR) task as a measure of motivational state in mice using drugs previously shown to modulate effort-based decision-making in rats and humans.
    METHODS: Using male C57bl/6j mice, we test the effects of drugs which modulate DA transmission. We also test the effects of CP101-606 which does not act directly via DA modulation but has been shown to exert beneficial effects on motivational state. Finally, we test the sensitivity of the task to a chronic corticosterone (CORT) treatment.
    RESULTS: Amphetamine, methylphenidate, and CP101606 in mice increased high-effort responses for high-value reward, while administration of haloperidol decreased high-effort responses. Surprisingly, tetrabenazine had no effect at the doses tested. Chronic, low-dose CORT consumption did not alter task performance.
    CONCLUSIONS: These data suggest that the EfR task is sensitive to acute dopaminergic modulation and NR2B selective antagonism in mice. However, it may lack sensitivity to non-acute phenotypic models. Further work is required to demonstrate the utility of the task in this context.
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