早期精神病患者内侧前额叶静息态功能连接与元认知能力的关联。

Association of medial prefrontal resting state functional connectivity and metacognitive capacity in early phase psychosis.

机构信息

Department of Psychiatry, Indiana University School of Medicine, 355 W. 16th St., Suite 4800, Indianapolis, IN 46202, USA; Prevention and Recovery Center for Early Psychosis, Eskenazi Health Midtown Community Mental Health Center, 720 Eskenazi Avenue, Outpatient Care Center, Lower Level, Indianapolis, IN 46202, USA; Larue D. Carter Memorial Hospital, IU Psychotic Disorders Program, 2601 Cold Spring Rd., Research Unit (8-2048), Indianapolis, IN 46222, USA.

Department of Psychiatry, Indiana University School of Medicine, 355 W. 16th St., Suite 4800, Indianapolis, IN 46202, USA.

出版信息

Psychiatry Res Neuroimaging. 2017 Apr 30;262:8-14. doi: 10.1016/j.pscychresns.2016.12.014. Epub 2017 Feb 8.

Abstract

Metacognition refers to a range of cognitive processes that allow one to form complex ideas of self and others and to use this information to navigate psychosocial challenges. Several studies in both early-phase and prolonged schizophrenia have demonstrated not only that significant deficits in metacognitive ability are present, but importantly that they are associated with significant functional impairment and decreased quality of life. In spite of the importance of metacognitive impairment in schizophrenia, relatively little is known about the biological substrates that may contribute to this dysfunction. In this study, we examined the relationship between resting state functional connectivity of the medial prefrontal cortex (mPFC), a structure shown in prior voxel-based morphometry studies to be associated with metacognition, with metacognitive function in an early-phase psychosis cohort (n=18). Analyses revealed a positive association of resting state functional connectivity between the mPFC and precuneus and posterior cingulate structures and metacognitive ability. These results provide evidence of disrupted resting state connectivity in structures relevant to metacognitive dysfunction in early-phase psychosis, which may have implications for pathophysiological models of complex cognitive deficits in this illness.

摘要

元认知是指一系列认知过程,使人们能够形成关于自我和他人的复杂观念,并利用这些信息来应对心理社会挑战。在早期和长期精神分裂症的几项研究中,不仅表明存在元认知能力的显著缺陷,而且重要的是,这些缺陷与显著的功能障碍和生活质量下降有关。尽管元认知障碍在精神分裂症中很重要,但对于可能导致这种功能障碍的生物学基础知之甚少。在这项研究中,我们检查了内侧前额叶皮层(mPFC)静息状态功能连接与早期精神病队列中元认知功能(n=18)之间的关系。分析显示,mPFC 与顶叶内囊和后扣带回结构之间的静息状态功能连接与元认知能力呈正相关。这些结果提供了证据,表明在早期精神病中与元认知功能障碍相关的结构中存在静息状态连接中断,这可能对这种疾病中复杂认知缺陷的病理生理学模型具有意义。

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