Results for 'functional connectivity'

966 found
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  1.  91
    Cortex functional connectivity as a neurophysiological correlate of hypnosis: An EEG case study.Andrew A. Fingelkurts, Alexander A. Fingelkurts, Sakari Kallio & Antti Revonsuo - 2007 - Neuropsychologia 45 (7):14521462.
    Cortex functional connectivity associated with hypnosis was investigated in a single highly hypnotizable subject in a normal baseline condition and under neutral hypnosis during two sessions separated by a year. After the hypnotic induction, but without further suggestions as compared to the baseline condition, all studied parameters of local and remote functional connectivity were significantly changed. The significant differences between hypnosis and the baseline condition were observable (to different extent) in five studied independent frequency bands (delta, (...)
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  2.  34
    The functional connectivity of the basal ganglia subregions changed in mid-aged and young males with chronic prostatitis/chronic pelvic pain syndrome.Xi Lan, Xuan Niu, Wei-Xian Bai, Hai-Ning Li, Xin-Yi Zhu, Wen-Jun Ma, Jian-Long Li, Wang-Huan Dun, Ming Zhang & Juan He - 2022 - Frontiers in Human Neuroscience 16:1013425.
    BackgroundThe Basal ganglia (BG) played a crucial role in the brain-level mechanisms of chronic pain disorders. However, the functional changes of BG in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) are still poorly understood. This study investigated the BG subregions’ resting-state functional connectivity (rs-FC) in CP/CPPS patients compared with healthy controls.MethodsTwenty eight patients with CP/CPPS and 28 age- and education-matched healthy males underwent clinical measurements and 3T brain MR imaging, including T1-weighted structural images and resting-state functional imaging. (...)
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  3.  18
    Regularized Functional Connectivity in Schizophrenia.Raymond Salvador, Paola Fuentes-Claramonte, María Ángeles García-León, Núria Ramiro, Joan Soler-Vidal, María Llanos Torres, Pilar Salgado-Pineda, Josep Munuera, Aristotle Voineskos & Edith Pomarol-Clotet - 2022 - Frontiers in Human Neuroscience 16.
    Regularization may be used as an alternative to dimensionality reduction when the number of variables in a model is much larger than the number of available observations. In a recent study from our group regularized regression was employed to quantify brain functional connectivity in a sample of healthy controls using a brain parcellation and resting state fMRI images. Here regularization is applied to evaluate resting state connectivity abnormalities at the voxel level in a sample of patients with (...)
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  4.  13
    Brain Functional Connectivity in the Resting State and the Exercise State in Elite Tai Chi Chuan Athletes: An fNIRS Study.Shilong Wang & Shengnan Lu - 2022 - Frontiers in Human Neuroscience 16.
    This study aimed to reveal the characteristics of multi-circuit brain synergy between elite tai chi chuan athletes in resting and exercise states and to provide neuroimaging evidence of improvements in brain function by motor skill training. Functional near-infrared spectroscopy was used to compare the brain activity of professional tai chi chuan athletes and beginners in resting and exercise states, and to assess functional connectivity between the prefrontal lobe and the sensorimotor zone. In the resting state, the FC (...)
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  5.  70
    Increased Functional Connectivity During Emotional Face Processing in Children With Autism Spectrum Disorder.Kristina Safar, Simeon M. Wong, Rachel C. Leung, Benjamin T. Dunkley & Margot J. Taylor - 2018 - Frontiers in Human Neuroscience 12:370113.
    Individuals with autism spectrum disorder (ASD) demonstrate poor social functioning, which may be related to atypical emotional face processing. Altered functional connectivity among brain regions, particularly involving limbic structures may be implicated. The current magnetoencephalography (MEG) study investigated whole-brain functional connectivity of eight a priori identified brain regions during the implicit presentation of happy and angry faces in 20 7 to 10-year-old children with ASD and 22 typically developing controls. Findings revealed a network of increased alpha-band (...)
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  6.  33
    Functional connectivity of gamma EEG activity is modulated at low frequency during conscious recollection.Adrian P. Burgess & Lia Ali - 2002 - International Journal of Psychophysiology 46 (2):91-100.
  7.  33
    Functional connectivity in the brain and human intelligence.Vincent J. Schmithorst - 2007 - Behavioral and Brain Sciences 30 (2):169-170.
    A parieto-frontal integration theory (P-FIT) model of human intelligence has been proposed based on a review of neuroimaging literature and lesion studies. The P-FIT model provides an important basis for future research. Future studies involving connectivity analyses and an integrative approach of imaging modalities using the P-FIT model should provide vastly increased understanding of the biological bases of intelligence.
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  8.  9
    Dynamic functional connectivity estimation for neurofeedback emotion regulation paradigm with simultaneous EEG-fMRI analysis.Raziyeh Mosayebi, Amin Dehghani & Gholam-Ali Hossein-Zadeh - 2022 - Frontiers in Human Neuroscience 16:933538.
    Joint Analysis of EEG and fMRI datasets can bring new insight into brain mechanisms. In this paper, we employed the recently introduced Correlated Coupled Tensor Matrix Factorization (CCMTF) method for analysis of the emotion regulation paradigm based on EEG frontal asymmetry neurofeedback in the alpha frequency band with simultaneous fMRI. CCMTF method assumes that the co-variations of the common dimension (temporal dimension) between EEG and fMRI are correlated and not necessarily identical. The results of the CCMTF method suggested that EEG (...)
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  9.  28
    Asymmetric Functional Connectivity of the Contra- and Ipsilateral Secondary Somatosensory Cortex during Tactile Object Recognition.Yinghua Yu, Jiajia Yang, Yoshimichi Ejima, Hidenao Fukuyama & Jinglong Wu - 2018 - Frontiers in Human Neuroscience 11.
  10. Decreased Intrinsic Functional Connectivity in First-Episode, Drug-Naive Adolescents With Generalized Anxiety Disorder.Fan Yang, Linlin Fan, Tianyi Zhai, Ying Lin, Yuyin Wang, Junji Ma, Mei Liao, Yan Zhang, Lingjiang Li, Linyan Su & Zhengjia Dai - 2019 - Frontiers in Human Neuroscience 12:420936.
    Generalized anxiety disorder (GAD) is characterized by excessive and uncontrollable worry about everyday life. Prior neuroimaging studies have demonstrated that GAD is associated with disruptions in specific brain regions; however, little is known about the global functional connectivity maps in adolescents with GAD. Here, first-episode, medication-naive, adolescent GAD patients ( N = 36) and healthy controls ( N = 28) (HCs) underwent resting-state functional MRI (R-fMRI) and completed a package of questionnaires to assess clinical symptoms. Functional (...)
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  11.  40
    EEG functional connectivity is associated with the valence of experienced affective states.Wyczesany Miroslaw & Ferdek Magdalena - 2015 - Frontiers in Human Neuroscience 9.
  12.  26
    Functional connectivity associated with five different categories of Autonomous Sensory Meridian Response (ASMR) triggers.Stephen D. Smith, Beverley Katherine Fredborg & Jennifer Kornelsen - 2020 - Consciousness and Cognition 85:103021.
  13.  47
    Multisite functional connectivity MRI classification of autism: ABIDE results.Jared A. Nielsen, Brandon A. Zielinski, P. Thomas Fletcher, Andrew L. Alexander, Nicholas Lange, Erin D. Bigler, Janet E. Lainhart & Jeffrey S. Anderson - 2013 - Frontiers in Human Neuroscience 7.
  14.  20
    Functional Connectivity During Handgrip Motor Fatigue in Older Adults Is Obesity and Sex-Specific.Joohyun Rhee & Ranjana K. Mehta - 2018 - Frontiers in Human Neuroscience 12.
  15.  28
    Increased functional connectivity in intrinsic neural networks in individuals with aniridia.Jordan E. Pierce, Cynthia E. Krafft, Amanda L. Rodrigue, Anastasia M. Bobilev, James D. Lauderdale & Jennifer E. McDowell - 2014 - Frontiers in Human Neuroscience 8.
  16.  37
    Brain functional connectivity, dopamine and the default mode network in ADHD.Silberstein Richard, Pipingas Andrew, Stough Con, Camfield David & Farrow Maree - 2015 - Frontiers in Human Neuroscience 9.
  17.  35
    Functional Connectivity of the Dorsal Striatum in Female Musicians.Shoji Tanaka & Eiji Kirino - 2016 - Frontiers in Human Neuroscience 10.
  18.  10
    Relations between physical activity and hippocampal functional connectivity: Modulating role of mind wandering.Donglin Shi, Fengji Geng, Xiaoxin Hao, Kejie Huang & Yuzheng Hu - 2022 - Frontiers in Human Neuroscience 16:950893.
    Physical activity is critical for maintaining cognitive and brain health. Previous studies have indicated that the effect of physical activity on cognitive and brain function varies between individuals. The present study aimed to examine whether mind wandering modulated the relations between physical activity and resting-state hippocampal functional connectivity. A total of 99 healthy adults participated in neuroimaging data collection as well as reported their physical activity in the past week and their propensity to mind wandering during typical activities. (...)
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  19.  44
    Brain Functional Connectivity Plasticity Within and Beyond the Sensorimotor Network in Lower-Limb Amputees.Jingna Zhang, Ye Zhang, Li Wang, Linqiong Sang, Lei Li, Pengyue Li, Xuntao Yin & Mingguo Qiu - 2018 - Frontiers in Human Neuroscience 12.
  20.  39
    Functional Connectivity Reveals Which Language the “Control Regions” Control during Bilingual Production.Karen le LiEmmorey, Xiaoxia Feng, Chunming Lu & Guosheng Ding - 2016 - Frontiers in Human Neuroscience 10.
  21.  39
    Functional connectivity and recognition of familiar faces in Alzheimer’s disease.Kurth Sophie, Bahri Mohamed, Moyse Evelyne, Bastin Christine & Salmon Eric - 2014 - Frontiers in Human Neuroscience 8.
  22.  35
    Hypnotic induction is followed by state-like changes in the organization of EEG functional connectivity in the theta and beta frequency bands in high-hypnotically susceptible individuals.Graham A. Jamieson & Adrian P. Burgess - 2014 - Frontiers in Human Neuroscience 8:86859.
    Altered state theories of hypnosis posit that a qualitatively distinct state of mental processing, which emerges in those with high hypnotic susceptibility following a hypnotic induction, enables the generation of anomalous experiences in response to specific hypnotic suggestions. If so then such a state should be observable as a discrete pattern of changes to functional connectivity (shared information) between brain regions following a hypnotic induction in high but not low hypnotically susceptible participants. Twenty-eight channel EEG was recorded from (...)
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  23.  25
    Functional Connectivity Alterations between Networks and Associations with Infant Immune Health within Networks in HIV Infected Children on Early Treatment: A Study at 7 Years.Jadrana T. F. Toich, Paul A. Taylor, Martha J. Holmes, Suril Gohel, Mark F. Cotton, Els Dobbels, Barbara Laughton, Francesca Little, Andre J. W. van der Kouwe, Bharat Biswal & Ernesta M. Meintjes - 2018 - Frontiers in Human Neuroscience 11.
  24.  32
    Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory.Sachiko Takahama & Jun Saiki - 2014 - Frontiers in Psychology 5.
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  25. Trait Mindfulness and Functional Connectivity in Cognitive and Attentional Resting State Networks.Tracie D. Parkinson, Jennifer Kornelsen & Stephen D. Smith - 2019 - Frontiers in Human Neuroscience 13.
  26.  22
    Altered Brain Functional Connectivity Density in Fast-Ball Sports Athletes With Early Stage of Motor Training.Chengbo Yang, Ning Luo, Minfeng Liang, Sihong Zhou, Qian Yu, Jiabao Zhang, Mu Zhang, Jingpu Guo, Hu Wang, Jiali Yu, Qian Cui, Huafu Chen & Qing Gao - 2020 - Frontiers in Psychology 11:530122.
    The human brain shows neuroplastic adaptations induced by motor skill training. However, the description of the plastic architecture of the whole-brain network in resting-state is still limited. In the present study, we aimed to detect how motor training affected the density distribution of whole-brain resting-state functional connectivity (FC) brain in fast-ball student-athletes using resting-state functional magnetic resonance imaging (fMRI) data of student-athletes (SA), and non-athlete healthy controls (NC). The voxel-wise data-driven graph theory approach, namely global functional (...)
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  27.  22
    Proof-functional connectives and realizability.Franco Barbanera & Simone Martini - 1994 - Archive for Mathematical Logic 33 (3):189-211.
    The meaning of a formula built out of proof-functional connectives depends in an essential way upon the intensional aspect of the proofs of the component subformulas. We study three such connectives, strong equivalence (where the two directions of the equivalence are established by mutually inverse maps), strong conjunction (where the two components of the conjunction are established by the same proof) and relevant implication (where the implication is established by an identity map). For each of these connectives we give (...)
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  28.  15
    Decreased Functional Connectivity Between the Left Amygdala and Frontal Regions Interferes With Reading, Emotional, and Executive Functions in Children With Reading Difficulties.Ohad Nachshon, Rola Farah & Tzipi Horowitz-Kraus - 2020 - Frontiers in Human Neuroscience 14.
  29.  15
    Alterations of Functional Connectivity During the Resting State and Their Associations With Visual Memory in College Students Who Binge Drink.Bo-Mi Kim, Myung-Sun Kim & June Sic Kim - 2020 - Frontiers in Human Neuroscience 14.
    This study investigated the characteristics of neural oscillation and functional connectivity in college students engaging in binge drinking using resting-state electroencephalography. Also, the associations of visual memory, evaluated by the Rey-Osterrieth Complex Figure Test, and neural oscillation with FC during the resting state were investigated. The BD and non-BD groups were selected based on scores of the Korean version of the Alcohol use disorders Identification Test and the Alcohol Use Questionnaire. EEG was performed for 6 min while the (...)
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  30.  46
    Altered Functional Connectivity in Patients With Sloping Sensorineural Hearing Loss.Tomasz Wolak, Katarzyna Cieśla, Agnieszka Pluta, Elżbieta Włodarczyk, Bharat Biswal & Henryk Skarżyński - 2019 - Frontiers in Human Neuroscience 13.
  31.  70
    Strong Functional Connectivity among Homotopic Brain Areas Is Vital for Motor Control in Unilateral Limb Movement.Pengxu Wei, Zuting Zhang, Zeping Lv & Bin Jing - 2017 - Frontiers in Human Neuroscience 11.
  32.  96
    Differential Functional Connectivity in Anterior and Posterior Hippocampus Supporting the Development of Memory Formation.Lingfei Tang, Patrick J. Pruitt, Qijing Yu, Roya Homayouni, Ana M. Daugherty, Jessica S. Damoiseaux & Noa Ofen - 2020 - Frontiers in Human Neuroscience 14.
  33.  12
    Functional Connectivity Between Motor and Mid-Frontal Areas During Vicarious Reward Revealed via EEG Time-Frequency Analysis.Tsukasa Inomata, Takuro Zama & Sotaro Shimada - 2019 - Frontiers in Human Neuroscience 13.
  34.  13
    Altered Functional Connectivity Differences in Salience Network as a Neuromarker of Suicide Risk in Euthymic Bipolar Disorder Patients.Anna Maria Sobczak, Bartosz Bohaterewicz, Tadeusz Marek, Magdalena Fafrowicz, Dominika Dudek, Marcin Siwek, Anna Tereszko, Anna Krupa, Amira Bryll & Adrian Andrzej Chrobak - 2020 - Frontiers in Human Neuroscience 14.
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  35.  30
    Abnormal Functional Connectivity Between Cerebral Hemispheres in Patients With High Myopia: A Resting FMRI Study Based on Voxel-Mirrored Homotopic Connectivity.Yi Cheng, Xiao-Lin Chen, Ling Shi, Si-Yu Li, Hui Huang, Pei-Pei Zhong & Xiao-Rong Wu - 2022 - Frontiers in Human Neuroscience 16.
    PurposeTo study the changes in functional connections between the left and right hemispheres of patients with high myopia and healthy controls by resting functional magnetic resonance imaging based on voxel-mirrored homotopic connectivity. To study the changes in resting-state functional connectivity between the left and right hemispheres of patients with HM and healthy controls at rest by using resting functional magnetic resonance imaging based on voxel-mirror homotopy connectivity.Patients and MethodsA total of 89 patients with (...)
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  36.  13
    Caudate Functional Connectivity Associated With Weight Change in Adolescents.Yuko Nakamura, Sachiyo Ozawa & Shinsuke Koike - 2020 - Frontiers in Human Neuroscience 14.
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  37.  37
    Functional connectivity of the medial temporal lobe relates to learning and awareness.Anthony Randal McIntosh, M. Natasha Rajah & Nancy J. Lobaugh - 2003 - Journal of Neuroscience 23 (16):6520-6528.
  38.  41
    Disrupted Functional Connectivity of Cornu Ammonis Subregions in Amnestic Mild Cognitive Impairment: A Longitudinal Resting-State fMRI Study.Hui Li, Xiuqin Jia, Zhigang Qi, Xiang Fan, Tian Ma, Ran Pang, Hong Ni, Chiang-Shan R. Li, Jie Lu & Kuncheng Li - 2018 - Frontiers in Human Neuroscience 12.
  39.  38
    Dynamic BOLD functional connectivity in humans and its electrophysiological correlates.Enzo Tagliazucchi, Frederic von Wegner, Astrid Morzelewski, Verena Brodbeck & Helmut Laufs - 2012 - Frontiers in Human Neuroscience 6.
  40.  33
    Specific and Nonspecific Thalamocortical Functional Connectivity in Normal and Vegetative States.Shi-Jiang Li Jingsheng Zhou, Xiaolin Liu, Weiqun Song, Yanhui Yang, Zhilian Zhao, Feng Ling, Anthony G. Hudetz - 2011 - Consciousness and Cognition 20 (2):257.
    Recent theoretical advances describing consciousness from information and integration have highlighted the unique role of the thalamocortical system in leading to integrated information and thus, consciousness. Here, we examined the differential distributions of specific and nonspecific thalamocortical functional connections using resting-state fMRI in a group of healthy subjects and vegetative-state patients. We found that both thalamic systems were widely distributed, but they exhibited different patterns. Nonspecific connections were preferentially associated with brain regions involved in higher-order cognitive processing, self-awareness and (...)
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  41.  23
    Modulation of Functional Connectivity and Low-Frequency Fluctuations After Brain-Computer Interface-Guided Robot Hand Training in Chronic Stroke: A 6-Month Follow-Up Study.Cathy C. Y. Lau, Kai Yuan, Patrick C. M. Wong, Winnie C. W. Chu, Thomas W. Leung, Wan-wa Wong & Raymond K. Y. Tong - 2021 - Frontiers in Human Neuroscience 14:611064.
    Hand function improvement in stroke survivors in the chronic stage usually plateaus by 6 months. Brain-computer interface (BCI)-guided robot-assisted training has been shown to be effective for facilitating upper-limb motor function recovery in chronic stroke. However, the underlying neuroplasticity change is not well understood. This study aimed to investigate the whole-brain neuroplasticity changes after 20-session BCI-guided robot hand training, and whether the changes could be maintained at the 6-month follow-up. Therefore, the clinical improvement and the neurological changes before, immediately after, (...)
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  42.  26
    Meal replacement and functional connectivity in the brain network for appetite: connecting the dots.Tanya Zilberter - 2015 - Frontiers in Psychology 6.
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  43.  13
    Verbal Training Induces Enhanced Functional Connectivity in Japanese Healthy Elderly Population.Fan-Pei Gloria Yang, Tzu-Yu Liu, Chih-Hsuan Liu, Shumei Murakami & Toshiharu Nakai - 2022 - Frontiers in Human Neuroscience 16.
    This study employs fMRI to examine the neural substrates of response to cognitive training in healthy old adults. Twenty Japanese healthy elders participated in a 4-week program and practiced a verbal articulation task on a daily basis. Functional connectivity analysis revealed that in comparison to age- and education-matched controls, elders who received the cognitive training demonstrated increased connectivity in the frontotemporal regions related with language and memory functions and showed significant correlations between the behavioral change in a (...)
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  44.  19
    Abnormality of Functional Connections in the Resting State Brains of Schizophrenics.Yan Zhu, Geng Zhu, Bin Li, Yueqi Yang, Xiaohan Zheng, Qi Xu & Xiaoou Li - 2022 - Frontiers in Human Neuroscience 16.
    To explore the change of brain connectivity in schizophrenics, the resting-state EEG source functional connections of SCZ and healthy control were investigated in this paper. Different band single-layer networks, multilayer networks, and improved multilayer networks were constructed and their topological attributes were extracted. The topological attributes of SCZ and HC were automatically distinguished using ensemble learning methods called Ensemble Learning based on Trees and Soft voting method, and the effectiveness of different network construction methods was compared based on (...)
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  45.  26
    Modulation of Brain Functional Connectivity and Efficiency During an Endurance Cycling Task: A Source-Level EEG and Graph Theory Approach.Gabriella Tamburro, Selenia di Fronso, Claudio Robazza, Maurizio Bertollo & Silvia Comani - 2020 - Frontiers in Human Neuroscience 14:551041.
    Various methods have been employed to investigate different aspects of the brain activity modulation related to the performance of a cycling task. In our study we examined how functional connectivity and brain network efficiency varied during an endurance cycling task. To this purpose, we reconstructed EEG signals at source level: we computed current densities in 28 anatomical regions of interest (ROIs) through the eLORETA algorithm, then we calculated the Lagged Coherence of the 28 current density signals to define (...)
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  46.  39
    Altered Functional Connectivity Density in Subtypes of Parkinson’s Disease.Xiaofei Hu, Yuchao Jiang, Xiaomei Jiang, Jiuquan Zhang, Minglong Liang, Jing Li, Yanling Zhang, Dezhong Yao, Cheng Luo & Jian Wang - 2017 - Frontiers in Human Neuroscience 11.
  47.  17
    Gray Matter Volume and Functional Connectivity in Hypochondriasis: A Magnetic Resonance Imaging and Support Vector Machine Analysis.Zhe Shen, Liang Yu, Zhiyong Zhao, Kangyu Jin, Fen Pan, Shaohua Hu, Shangda Li, Yi Xu, Dongrong Xu & Manli Huang - 2020 - Frontiers in Human Neuroscience 14.
    Objective: Patients with hypochondriasis hold unexplainable beliefs and a fear of having a lethal disease, with poor compliances and treatment response to psychotropic drugs. Although several studies have demonstrated that patients with hypochondriasis demonstrate abnormalities in brain structure and function, gray matter volume and functional connectivity in hypochondriasis still remain unclear.Methods: The present study collected T1-weighted and resting-state functional magnetic resonance images from 21 hypochondriasis patients and 22 well-matched healthy controls. We first analyzed the difference in the (...)
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  48. Functional Connectivity of the Precuneus in Female University Students with Long-Term Musical Training.Shoji Tanaka & Eiji Kirino - 2016 - Frontiers in Human Neuroscience 10.
  49.  14
    Resting-State Functional Connectivity in the Dorsal Attention Network Relates to Behavioral Performance in Spatial Attention Tasks and May Show Task-Related Adaptation.Björn Machner, Lara Braun, Jonathan Imholz, Philipp J. Koch, Thomas F. Münte, Christoph Helmchen & Andreas Sprenger - 2022 - Frontiers in Human Neuroscience 15.
    Between-subject variability in cognitive performance has been related to inter-individual differences in functional brain networks. Targeting the dorsal attention network we questioned whether resting-state functional connectivity within the DAN can predict individual performance in spatial attention tasks and whether there is short-term adaptation of DAN-FC in response to task engagement. Twenty-seven participants first underwent resting-state fMRI, they subsequently performed different tasks of spatial attention [including visual search ] and immediately afterwards received another rs-fMRI. Intra- and inter-hemispheric FC (...)
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  50.  15
    Altered Functional Connectivity in White and Gray Matter in Patients With Multiple Sclerosis.Muwei Li, Qiongge Li, Zhipeng Yang, Bowen Xin, Zhigang Qi, Zheng Liu, Huiqing Dong, Kuncheng Li, Zhaohua Ding & Jie Lu - 2020 - Frontiers in Human Neuroscience 14.
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