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https://www.readbyqxmd.com/read/28926475/altered-resting-state-functional-connectivity-of-default-mode-network-and-sensorimotor-network-in-heavy-metal-music-lovers
#1
Yan Sun, Congcong Zhang, Shuxia Duan, Xiaoxia Du, Vince D Calhoun
The aim of this study was to investigate the spontaneous neural activity and functional connectivity (FC) in heavy metal music lovers (HMML) compared with classical music lovers (CML) during resting state. Forty HMML and 31 CML underwent resting-state functional MRI scans. Fractional amplitude of low-frequency fluctuations (fALFF) and seed-based resting-state FC were computed to explore regional activity and functional integration. A voxel-based two-sample t-test was used to test the differences between the two groups...
September 18, 2017: Neuroreport
https://www.readbyqxmd.com/read/28893588/resting-state-fmri-observations-of-baseline-brain-functional-activities-and-connectivities-in-primary-blepharospasm
#2
Ming-Fei Ni, Xiao-Feng Huang, Yan-Wei Miao, Zhan-Hua Liang
Primary blepharospasm (BPS) is a focal dystonia characterized by involuntary eyelid spasms and blinking. The pathophysiology of BPS remains unclear. Several functional and structural neuroimaging studies have demonstrated abnormalities of sensorimotor structures such as the sensorimotor cortex, the basal ganglia, the thalamus and the cerebellum in BPS patients. However, some of the results of these studies were inconsistent. In addition, the relationship between the motor and sensory structures in patients with BPS still needs to be investigated...
September 8, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28860514/delay-discounting-is-associated-with-the-fractional-amplitude-of-low-frequency-fluctuations-and-resting-state-functional-connectivity-in-late-adolescence
#3
Song Wang, Ming Zhou, Taolin Chen, Xun Yang, Guangxiang Chen, Qiyong Gong
As a component of self-regulation, delay discounting (DD) refers to an individual's tendency to prefer smaller-but-sooner rewards over larger-but-later rewards and plays an essential role in many aspects of human behavior. Although numerous studies have examined the neural underpinnings of DD in adults, there are far fewer studies focusing on the neurobiological correlates underlying DD in adolescents. Here, we investigated the associations between individual differences in DD and the fractional amplitude of low-frequency fluctuations (fALFF) and resting-state functional connectivity (RSFC) in 228 high school students using resting-state functional magnetic resonance imaging (RS-fMRI)...
August 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28798299/diabetes-mellitus-is-associated-with-more-severe-brain-spontaneous-activity-impairment-and-gray-matter-loss-in-patients-with-cirrhosis
#4
Yun Fei Wang, Xiang Kong, Guang Ming Lu, Long Jiang Zhang
Recent studies showed many cirrhosis patients may have diabetes mellitus (DM), however, the effect of DM on brain in cirrhotic patients is unclear. This study included 34 cirrhosis patients (17 with DM, 17 without DM) and 17 age-, sex-matched healthy controls. MRI examination and neuropsychological tests were performed. Fractional amplitude of low-frequency fluctuation (fALFF) and voxel-based morphometry algorithms were used to obtain fALFF values and gray matter volume, which were compared and correlated with clinical variables...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28794972/fractional-amplitude-of-low-frequency-fluctuations-falff-in-post-stroke-depression
#5
Natalia Egorova, Michele Veldsman, Toby Cumming, Amy Brodtmann
Depression is a common outcome following stroke, associated with reduced quality of life and poorer recovery. Despite attempts to associate depression symptoms with specific lesion sites, the neural basis of post-stroke depression remains poorly understood. Resting state fMRI has provided new insights into the neural underpinnings of post-stroke depression, but has been limited to connectivity analyses exploring interregional correlations in the time-course of activity. Other aspects of resting state BOLD signal remain unexamined...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28763879/-study-of-fraction-amplitude-of-low-frequency-fluctuation-on-resting-state-functional-magnetic-resonance-imaging-in-adultperipheral-facial-paralysis
#6
Y J Zhu, G L Ma, T B Song, L Du, R C Guo, S L Sun, H Li, L G Sun
Objective: To analysis the change of brain functional activity in the left and right peripheral facial paralysis by using resting-state functional magnetic resonance imaging (R-fMRI) of fraction amplitude of low frequency fluctuation(fALFF) measurement technique, and research the abnormal brain region with different side patients whether there are differences. Methods: A total of 43 patients with peripheral facial paralysis patients (patient groups, divided into left / right two subgroups) and 21 healthy volunteers (control group) in this study...
July 18, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28755862/ketamine-changes-the-local-resting-state-functional-properties-of-anesthetized-monkey-brain
#7
Jia-Sheng Rao, Zuxiang Liu, Can Zhao, Rui-Han Wei, Wen Zhao, Peng-Yu Tian, Xia Zhou, Zhao-Yang Yang, Xiao-Guang Li
OBJECTIVE: Ketamine is a well-known anesthetic. 'Recreational' use of ketamine common induces psychosis-like symptoms and cognitive impairments. The acute and chronic effects of ketamine on relevant brain circuits have been studied, but the effects of single-dose ketamine administration on the local resting-state functional properties of the brain remain unknown. In this study, we aimed to assess the effects of single-dose ketamine administration on the brain local intrinsic properties...
July 26, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28736535/mind-body-practice-changes-fractional-amplitude-of-low-frequency-fluctuations-in-intrinsic-control-networks
#8
Gao-Xia Wei, Zhu-Qing Gong, Zhi Yang, Xi-Nian Zuo
Cognitive control impairment is a typical symptom largely reported in populations with neurological disorders. Previous studies have provided evidence about the changes in cognitive control induced by mind-body training. However, the neural correlates underlying the effect of extensive mind-body practice on cognitive control remain largely unknown. Using resting-state functional magnetic resonance imaging, we characterized dynamic fluctuations in large-scale intrinsic connectivity networks associated with mind-body practice, and examined their differences between healthy controls and Tai Chi Chuan (TCC) practitioners...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28727713/local-brain-activity-differences-between-herpes-zoster-and-postherpetic-neuralgia-patients-a-resting-state-functional-mri-study
#9
Song Cao, Ying Li, Wenwen Deng, Bangyong Qin, Yi Zhang, Peng Xie, Jie Yuan, Buwei Yu, Tian Yu
BACKGROUND: Herpes zoster (HZ) can develop into postherpetic neuralgia (PHN), both of which are painful diseases. PHN patients suffer chronic pain and emotional disorders. Previous studies showed that the PHN brain displayed abnormal activity and structural change, but the difference in brain activity between HZ and PHN is still not known. OBJECTIVES: To identify regional brain activity changes in HZ and PHN brains with resting-state functional magnetic resonance imaging (rs-fMRI) technique, and to observe the differences between HZ and PHN patients...
July 2017: Pain Physician
https://www.readbyqxmd.com/read/28684794/altered-spontaneous-brain-activity-in-children-with-early-tourette-syndrome-a-resting-state-fmri-study
#10
Yue Liu, Jieqiong Wang, Jishui Zhang, Hongwei Wen, Yue Zhang, Huiying Kang, Xu Wang, Wenfeng Li, Huiguang He, Yun Peng
Tourette syndrome (TS) is a childhood-onset chronic disorder characterized by the presence of multiple motor and vocal tics. This study investigated the alterations of spontaneous brain activities in children with TS by resting-state functional magnetic resonance imaging (rs-fMRI). We obtained rs-fMRI scans from 21 drug-naïve and pure TS children and 29 demographically matched healthy children. The amplitude of low-frequency fluctuation (ALFF), fractional ALFF (fALFF) and regional homogeneity (ReHo) of rs-fMRI data were calculated to measure spontaneous brain activity...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28680397/a-comprehensive-analysis-of-the-correlations-between-resting-state-oscillations-in-multiple-frequency-bands-and-big-five-traits
#11
Shigeyuki Ikeda, Hikaru Takeuchi, Yasuyuki Taki, Rui Nouchi, Ryoichi Yokoyama, Yuka Kotozaki, Seishu Nakagawa, Atsushi Sekiguchi, Kunio Iizuka, Yuki Yamamoto, Sugiko Hanawa, Tsuyoshi Araki, Carlos Makoto Miyauchi, Kohei Sakaki, Takayuki Nozawa, Susumu Yokota, Daniele Magistro, Ryuta Kawashima
Recently, the association between human personality traits and resting-state brain activity has gained interest in neuroimaging studies. However, it remains unclear if Big Five personality traits are represented in frequency bands (~0.25 Hz) of resting-state functional magnetic resonance imaging (fMRI) activity. Based on earlier neurophysiological studies, we investigated the correlation between the five personality traits assessed by the NEO Five-Factor Inventory (NEO-FFI), and the fractional amplitude of low-frequency fluctuation (fALFF) at four distinct frequency bands (slow-5 (0...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28657344/value-of-frequency-domain-resting-state-functional-magnetic-resonance-imaging-metrics-amplitude-of-low-frequency-fluctuation-and-functional-amplitude-of-low-frequency-fluctuation-in-the-assessment-of-brain-tumor-induced-neurovascular-uncoupling
#12
Shruti Agarwal, Hanzhang Lu, Jay J Pillai
The aim of this study was to explore whether the phenomenon of brain tumor-related neurovascular uncoupling (NVU) in resting-state blood oxygen level-dependent functional magnetic resonance imaging (BOLD fMRI) (rsfMRI) may also affect the resting-state fMRI (rsfMRI) frequency domain metrics the amplitude of low-frequency fluctuation (ALFF) and fractional ALFF (fALFF). Twelve de novo brain tumor patients, who underwent clinical fMRI examinations, including task-based fMRI (tbfMRI) and rsfMRI, were included in this Institutional Review Board-approved study...
August 2017: Brain Connectivity
https://www.readbyqxmd.com/read/28577332/hippocampal-fractional-amplitude-of-low-frequency-fluctuation-and-functional-connectivity-changes-in-premenstrual-syndrome
#13
Gaoxiong Duan, Huimei Liu, Yong Pang, Peng Liu, Yanfei Liu, Geliang Wang, Hai Liao, Lijun Tang, Wenfu Chen, Xiaping Mo, Danhong Wen, Hua Lin, Demao Deng
PURPOSE: To investigate differences in hippocampal activity between premenstrual syndrome (PMS) patients and healthy controls, to elucidate the neural mechanisms of PMS. MATERIALS AND METHODS: Twenty female patients with PMS (PMS group) and 21 healthy controls (HC group) underwent a single-shot gradient-recalled echo planar imaging (EPI) sequence scan during the luteal phase in 3.0 Tesla MRI. Spontaneous neural activity in hippocampus (HIPP) was measured by fractional amplitude of low-frequency fluctuation (fALFF)...
June 3, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28570868/fractional-amplitude-of-low-frequency-fluctuations-is-disrupted-in-alzheimer-s-disease-with-depression
#14
Zhongwei Guo, Xiaozheng Liu, Jiapeng Li, Fuquan Wei, Hongtao Hou, Xingli Chen, Xinwei Li, Wei Chen
OBJECTIVE: To explore brain activity in AD with depression (D-AD) based on fractional amplitude of low-frequency fluctuation (fALFF). METHODS: Twenty-two D-AD and 21 AD without depression patients (nD-AD) were examined by magnetic resonance imaging during resting state. Neuropsychiatric Inventory and Hamilton Depression Rating Scale were employed to assess the severity of depression. We analysed the characteristics of fALFF in D-AD differing from nD-AD. We also examined the correlation between fALFF and the depression severity...
July 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28559191/hope-and-the-brain-trait-hope-mediates-the-protective-role-of-medial-orbitofrontal-cortex-spontaneous-activity-against-anxiety
#15
Song Wang, Xin Xu, Ming Zhou, Taolin Chen, Xun Yang, Guangxiang Chen, Qiyong Gong
As a central research topic in the field of positive psychology, hope refers to an individual's goal-oriented expectations that include both agency thinking (i.e., the motivation to initiate and sustain actions to achieve goals) and pathway thinking (i.e., the capacity to find ways toward goals). Evidence from many previous studies has shown the role of hope in protecting against anxiety. However, little is known about the neurobiological basis of hope and the underlying mechanism that how hope reduces anxiety in the brain...
May 27, 2017: NeuroImage
https://www.readbyqxmd.com/read/28553253/resting-state-fmri-associated-with-stop-signal-task-performance-in-healthy-middle-aged-and-elderly-people
#16
Hsing-Hao Lee, Shulan Hsieh
Several brain regions and connectivity networks may be altered as aging occurs. We are interested in investigating if resting-state functional magnetic resonance imaging (RS-fMRI) can also be valid as an indicator of individual differences in association with inhibition performance among aged (including middle-aged) people. Seventy-two healthy adults (40-77 years of age) were recruited. Their RS-fMRI images were acquired and analyzed via two cluster-analysis methods: local synchronization of spontaneous brain activity measured by regional homogeneity (ReHo) and fractional amplitude of low-frequency fluctuations (fALFF) of blood oxygenation level-dependent signals...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28550250/frequency-dependent-changes-in%C3%A2-the%C3%A2-amplitude-of-low-frequency-fluctuations-in-mild-cognitive-impairment-with-mild-depression
#17
Yuxia Li, Bin Jing, Han Liu, Yifan Li, Xuan Gao, Yongqiu Li, Bin Mu, Haikuo Yu, Jinbo Cheng, Peter B Barker, Hongxing Wang, Ying Han
BACKGROUND: Depression is a potential marker of preclinical Alzheimer's disease (AD). However, little is known about the abnormal characteristics revealed by resting-state functional magnetic resonance imaging (rs-fMRI) in mild cognitive impairment (MCI) subjects with depressive symptoms (MCI-d). OBJECTIVE: The study was to examine whether abnormalities in amplitudes of low-frequency oscillation occurred in MCI-d and tried to find the possible spectrum showed higher recognition ability to the diagnosis by utilizing functional MRI (fMRI)...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28469197/neural-plasticity-in-amplitude-of-low-frequency-fluctuation-cortical-hub-construction-regional-homogeneity-resulting-from-working-memory-training
#18
Hikaru Takeuchi, Yasuyuki Taki, Rui Nouchi, Atsushi Sekiguchi, Yuka Kotozaki, Seishu Nakagawa, Carlos Makoto Miyauchi, Yuko Sassa, Ryuta Kawashima
Working memory training (WMT) induces changes in cognitive function and various neurological systems. Here, we investigated changes in recently developed resting state functional magnetic resonance imaging measures of global information processing [degree of the cortical hub, which may have a central role in information integration in the brain, degree centrality (DC)], the magnitude of intrinsic brain activity [fractional amplitude of low frequency fluctuation (fALFF)], and local connectivity (regional homogeneity) in young adults, who either underwent WMT or received no intervention for 4 weeks...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28458114/altered-fractional-amplitude-of-low-frequency-fluctuation-in-premenstrual-syndrome-a-resting-state-fmri-study
#19
Hai Liao, Gaoxiong Duan, Peng Liu, Yanfei Liu, Yong Pang, Huimei Liu, Lijun Tang, Jien Tao, Danhong Wen, Shasha Li, Lingyan Liang, Demao Deng
BACKGROUND: Premenstrual syndrome (PMS) is becoming highly prevalent among female and is characterized by emotional, physical and behavior symptoms. Previous evidence suggested functional dysregulation of female brain was expected to be involved in the etiology of PMS. The aim of present study was to evaluate the alterations of spontaneous brain activity in PMS patients based on functional magnetic resonance imaging (fMRI). METHODS: 20 PMS patients and 21 healthy controls underwent resting-state fMRI scanning during luteal phase...
April 24, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28429352/difference-in-resting-state-fractional-amplitude-of-low-frequency-fluctuation-between-bipolar-depression-and-unipolar-depression-patients
#20
H-L Yu, W-B Liu, T Wang, P-Y Huang, L-Y Jie, J-Z Sun, C Wang, W Qian, M Xuan, Q-Q Gu, H Liu, F-L Zhang, M-M Zhang
OBJECTIVE: To investigate the difference in fractional amplitude of low-frequency fluctuation (fALFF) of localized brain activities in the resting-state between bipolar depression and unipolar depression patients and to find biological markers that differentiate the two groups of patients. PATIENTS AND METHODS: Thirteen patients with bipolar depression, 15 patients with unipolar depression, and 16 healthy control subjects that were matched in age and years of education were subjected to 3...
April 2017: European Review for Medical and Pharmacological Sciences
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