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「6つの精神疾患に共通する脳活動の低下パターンが判明」の検索結果

24,062 件中 10 件を表示 (4392 ms) · ⭐ 保存した論文

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("mental disorders"[MeSH] OR "psychiatric disorders" OR "mental illness") AND ("brain activity" OR "neural activity" OR fMRI OR "functional magnetic resonance imaging"[MeSH] OR "brain mapping"[MeSH]) AND (decreased OR reduced OR hypoactivation OR "diminished activity")

💡 6疾患特定は困難なため、精神疾患全般と脳活動低下の組み合わせで検索クエリを構築しました

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  • Sensitivity and specificity of hypoactivations and failure of de-activation in schizophrenia.

    Pilar Salgado-Pineda, Joaquim Radua, Salvador Sarró 他 · Schizophrenia research · 2018

    Brain functional changes reported in schizophrenia include reduced prefrontal cortex activation (hypofrontality), increased frontal activation (hyperfrontality) and failure of de-activation in the medial frontal cortex. The relative importance of these changes is unestablished. A 'discovery' sample of 32 schizophrenic patients and 32 controls was used to establish regions of altered activation and…

    📄 PubMed で読む (PMID: 29954704)
  • Out-of-step: brain-heart desynchronization in anxiety disorders.

    Shankar Tumati, Martin P Paulus, Georg Northoff 他 · Molecular psychiatry · 2021

    Imaging studies in anxiety disorders (AD) show abnormal functional connectivity primarily in the salience network (SN), somatomotor network (SMN), and default mode network (DMN). However, it is not clear how precisely these network changes occur including their relation to psychopathological symptoms. Here, we show that the functional networks affected in AD overlap with cortical regions that rece…

    📄 PubMed で読む (PMID: 33504952)
  • Emotion-cognition interactions in schizophrenia.

    Ute Habel, Katharina Pauly, Kathrin Koch 他 · The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry · 2010

    Negative emotion exerts a considerable influence on cognitive processes. This may have clinical implications in mental illnesses, such as schizophrenia, where negative emotions often prevail. Experimentally this influence can be studied by using olfactory emotion induction. Fourteen schizophrenia patients and 14 healthy volunteers were investigated with functional magnetic resonance imaging with r…

    📄 PubMed で読む (PMID: 20642398)
  • Differences Between Schizophrenic and Normal Subjects Using Network Properties from fMRI.

    Youngoh Bae, Kunaraj Kumarasamy, Issa M Ali 他 · Journal of digital imaging · 2018

    Schizophrenia has been proposed to result from impairment of functional connectivity. We aimed to use machine learning to distinguish schizophrenic subjects from normal controls using a publicly available functional MRI (fMRI) data set. Global and local parameters of functional connectivity were extracted for classification. We found decreased global and local network connectivity in subjects with…

    📄 PubMed で読む (PMID: 28924878)
  • Fronto-striatal hypoactivation during correct information retrieval in patients with schizophrenia: an fMRI study.

    K Koch, G Wagner, I Nenadic 他 · Neuroscience · 2008

    Working memory (WM) deficits are core symptoms of schizophrenia. Differing behavioral performance is known to represent a potent moderating variable when investigating the neural correlates of working memory in patients with schizophrenia compared with healthy controls. The present functional magnetic resonance imaging study examined performance-matched cerebral activity during correct WM retrieva…

    📄 PubMed で読む (PMID: 18359576)
  • Dynamic functional connectivity impairments in idiopathic rapid eye movement sleep behavior disorder.

    Guanglu Li, Liche Zhou, Zhichun Chen 他 · Parkinsonism & related disorders · 2020

    Previous functional magnetic resonance imaging (fMRI) studies typically analyzed static functional connectivity (sFC) to reveal the pathophysiology of iRBD and overlooked the dynamic nature of brain activity. Thus, we aimed to explore whether iRBD showed abnormalities of brain network dynamics using the dynamic functional connectivity (dFC) approach. Resting-state fMRI data from 33 iRBD patients a…

    📄 PubMed で読む (PMID: 32858487)
  • Dissociation of working memory impairments and attention-deficit/hyperactivity disorder in the brain.

    Aaron T Mattfeld, Susan Whitfield-Gabrieli, Joseph Biederman 他 · NeuroImage. Clinical · 2016

    Prevailing neuropsychological models of attention-deficit/hyperactivity disorder (ADHD) propose that ADHD arises from deficits in executive functions such as working memory, but accumulating clinical evidence suggests a dissociation between ADHD and executive dysfunctions. This study examined whether ADHD and working memory capacity are behaviorally and neurobiologically separable using functional…

    📄 PubMed で読む (PMID: 26900567)
  • Reward-related decision-making in schizophrenia: A multimodal neuroimaging study.

    Andràs Tikàsz, Alexandre Dumais, Olivier Lipp 他 · Psychiatry research. Neuroimaging · 2019

    Schizophrenia is a severe psychiatric disorder characterized by important cognitive deficits, which ultimately compromise the patients' ability to make optimal decisions. Unfortunately, the neurobiological bases of impaired reward-related decision-making in schizophrenia have rarely been studied. The objective of this study is to examine the neural mechanisms involved in reward-related decision-ma…

    📄 PubMed で読む (PMID: 30897449)
  • CHANGES IN REGIONAL BRAIN ACTIVATION RELATED TO DEPRESSIVE STATE: A 2-YEAR LONGITUDINAL FUNCTIONAL MRI STUDY.

    Esther M Opmeer, Rudie Kortekaas, Marie-José van Tol 他 · Depression and anxiety · 2016

    Abnormal brain activations during processing of emotional facial expressions in depressed patients have been demonstrated. We investigated the natural course of brain activation in response to emotional faces in depression, indexed by functional magnetic resonance imaging (fMRI) scans preceding and following change in depressive state. We hypothesized a decrease in activation in the amygdala, ante…

    📄 PubMed で読む (PMID: 26378742)
  • Neural correlates of negative emotion processing in bipolar disorder.

    Gianna Sepede, Domenico De Berardis, Daniela Campanella 他 · Progress in neuro-psychopharmacology & biological psychiatry · 2015

    Bipolar disorder type I (BD-I) is characterized by a severe impairment in emotional processing during both acute and euthymic phases of the illness. The aim of the present study was to investigate negative emotion processing in both euthymic patients and non-affected first-degree relatives, looking for state and trait markers of BD-I. 22 healthy relatives of BD-I patients (mean age 31.5±7.3 years;…

    📄 PubMed で読む (PMID: 25661850)