Results 11 to 20 of about 173,689,056 (279)

Amplitude of low frequency fluctuation abnormalities in adolescents with online gaming addiction.

PLoS ONE, 2013
The majority of previous neuroimaging studies have demonstrated both structural and task-related functional abnormalities in adolescents with online gaming addiction (OGA).
Kai Yuan, Chenwang Jin, Ping Cheng, Xuejuan Yang, Tao Dong, Yanzhi Bi, Lihong Xing, Karen M von Deneen, Dahua Yu, Junyu Liu, Jun Liang, Tingting Cheng, Wei Qin, Jie Tian   +13 more
doaj   +5 more sources

Altered amplitude of low-frequency fluctuation and regional cerebral blood flow in females with primary dysmenorrhea: a resting-state fMRI and arterial spin labeling study

Journal of Pain Research, 2019
Ya-Nan Zhang,1 Jian-Wei Huo,1 Yi-Ran Huang,2 Ying Hao,3 Zi-Yue Chen41Department of Radiology, Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing 100010, People’s Republic of China; 2School of ...
Zhang YN, Huo JW, Huang YR, Hao Y, Chen ZY   +4 more
doaj   +1 more source

Suppression of Low-Frequency Shock Oscillations over Boundary Layers by Repetitive Laser Pulse Energy Deposition

Aerospace, 2016
The effect of repetitive energy deposition on low Strouhal number oscillations of the shock wave induced by boundary-layer interaction over a cylinder-flare model was studied.
Akira Iwakawa, Tatsuro Shoda, Hoang Son Pham, Takahiro Tamba, Akihiro Sasoh   +4 more
doaj   +2 more sources

Frequency-dependent changes in the amplitude of low-frequency fluctuations in post stroke apathy: a resting-state fMRI study

Frontiers in Psychiatry
BackgroundApathy is a prevalent psychiatric condition after stroke, affecting approximately 30% of stroke survivors. It is associated with slower recovery and an increased risk of depression. Understanding the pathophysiological mechanisms of post stroke
Ying Liu, Ying Liu, Yi-Kuang Hsien, Yi-Kuang Hsien, Wenlong Su, Wenlong Su, Zhiqing Tang, Zhiqing Tang, Hui Li, Junzi Long, Junzi Long, Xingxing Liao, Xingxing Liao, Hao Zhang, Hao Zhang, Hao Zhang   +15 more
doaj   +3 more sources

Sub-ionospheric very low frequency perturbations associated with the 12 May 2008 M = 7.9 Wenchuan earthquake [PDF]

Natural Hazards and Earth System Sciences, 2013
The present study reports the VLF (very low frequency) sub-ionospheric perturbations observed on transmitter JJI (22.1 kHz), Japan, received at the Indian low-latitude station, Allahabad ( geographic lat.
A. K. Maurya, R. Singh, B. Veenadhari, S. Kumar, A. K. Singh   +4 more
doaj   +3 more sources

Altered dynamic amplitude of low-frequency fluctuations in patients with postpartum depression [PDF]

Behavioural Brain Research, 2022
Postpartum depression (PPD) is a common mood disorder with increasing incidence year by year. However, the dynamic changes in local neural activity of patients with PPD remain unclear. In this study, we utilized the dynamic amplitude of low-frequency fluctuation (dALFF) method to investigate the abnormal temporal variability of local neural activity ...
Fanghui, Dong, Zhongsheng, Zhang, Tongpeng, Chu, Kaili, Che, Yuna, Li, Qun, Gai, Yinghong, Shi, Heng, Ma, Feng, Zhao, Ning, Mao, Haizhu, Xie   +10 more
openaire   +3 more sources

Altered dynamic amplitude of low-frequency fluctuation between bipolar type I and type II in the depressive state [PDF]

NeuroImage: Clinical, 2022
Yanqing Tang, Lingtao Kong, Qikun Sun
exaly   +2 more sources

Reduced amplitude of low frequency fluctuation in the sensorimotor cortex in early psychosis: association with motor dexterity and hyperconnectivity. [PDF]

Schizophrenia (Heidelb)
Previous studies have demonstrated widespread regional abnormalities in blood oxygen level-dependent (BOLD) amplitude of low frequency fluctuation (ALFF) in psychotic disorders.
Smucny J, Wylie KP, Tregellas JR, Hare SM.   +3 more
europepmc   +2 more sources

Frequency‐specific alternations in the amplitude of low‐frequency fluctuations in schizophrenia [PDF]

Human Brain Mapping, 2012
Schizophrenia has been associated with abnormal task‐related brain activation in sensory and motor regions as well as social cognition network. Recently, two studies investigated temporal correlation between resting‐state functional magnetic resonance imaging (R‐fMRI) low‐frequency oscillations (LFOs) in schizophrenia but reported mixed results.
Yu, Rongjun, Chien, Yi-Ling, Wang, Hsiao-Lan Sharon, Liu, Chih-Min, Liu, Chen-Chung, Hwang, Tzung-Jeng, Hsieh, Ming H., Hwu, Hai-Gwo, Tseng, Wen-Yih Isaac   +8 more
  +12 more sources

Altered amplitude of low-frequency fluctuation and functional connectivity in patients with acute unilateral vestibulopathy: a resting-state fMRI study [PDF]

Frontiers in Neurology
Xiue Wei, Lijie Xiao, Tengfei Liu
exaly   +2 more sources