نتایج جستجو برای: functional connectivity

تعداد نتایج: 632083  

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2011
Jie Lu Hesheng Liu Miao Zhang Danhong Wang Yanxiang Cao Qingfeng Ma Dongdong Rong Xiaoyi Wang Randy L Buckner Kuncheng Li

Intrinsic functional connectivity detected by functional MRI (fMRI) provides a useful but indirect approach to study the organization of human brain systems. An unresolved question is whether functional connectivity measured by resting-state fMRI reflects anatomical connections. In this study, we used the well-characterized anatomy of cerebrocerebellar circuits to directly test whether intrinsi...

2014
Kamalini G. Ranasinghe Leighton B. Hinkley Alexander J. Beagle Danielle Mizuiri Anne F. Dowling Susanne M. Honma Mariel M. Finucane Carole Scherling Bruce L. Miller Srikantan S. Nagarajan Keith A. Vossel

Understanding neural network dysfunction in neurodegenerative disease is imperative to effectively develop network-modulating therapies. In Alzheimer's disease (AD), cognitive decline associates with deficits in resting-state functional connectivity of diffuse brain networks. The goal of the current study was to test whether specific cognitive impairments in AD spectrum correlate with reduced f...

Journal: :Learning & memory 2007
Sung H Yun Deok S Lee Hyunjung Lee Eun H Baeg Yun B Kim Min W Jung

To obtain evidence linking long-term potentiation (LTP) and memory, we examined whether LTP induction modifies functional relationship among neurons in the rat hippocampus. In contrast to neurons in low-frequency stimulated or AP5-treated slices, LTP induction altered 'functional connectivity,' as defined by the degree of synchronous firing, among simultaneously recorded neurons in the CA3 regi...

2015
Joshua Manning Gretchen Reynolds Zeynep M. Saygin Stefan G. Hofmann Mark Pollack John D. E. Gabrieli Susan Whitfield-Gabrieli

We investigated differences in the intrinsic functional brain organization (functional connectivity) of the human reward system between healthy control participants and patients with social anxiety disorder. Functional connectivity was measured in the resting-state via functional magnetic resonance imaging (fMRI). 53 patients with social anxiety disorder and 33 healthy control participants unde...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2012
Adam W Bero Adam Q Bauer Floy R Stewart Brian R White John R Cirrito Marcus E Raichle Joseph P Culver David M Holtzman

Brain region-specific deposition of extracellular amyloid plaques principally composed of aggregated amyloid-β (Aβ) peptide is a pathological signature of Alzheimer's disease (AD). Recent human neuroimaging data suggest that resting-state functional connectivity strength is reduced in patients with AD, cognitively normal elderly harboring elevated amyloid burden, and in advanced aging. Interest...

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