Multiple time scale complexity analysis of resting state FMRI
نویسندگان
چکیده
منابع مشابه
Large-scale DCMs for resting-state fMRI
This paper considers the identification of large directed graphs for resting-state brain networks based on biophysical models of distributed neuronal activity, that is, effective connectivity. This identification can be contrasted with functional connectivity methods based on symmetric correlations that are ubiquitous in resting-state functional MRI (fMRI). We use spectral dynamic causal modeli...
متن کاملResting State fMRI Functional Connectivity Analysis Using Dynamic Time Warping
Traditional resting-state network concept is based on calculating linear dependence of spontaneous low frequency fluctuations of the BOLD signals of different brain areas, which assumes temporally stable zero-lag synchrony across regions. However, growing amount of experimental findings suggest that functional connectivity exhibits dynamic changes and a complex time-lag structure, which cannot ...
متن کاملLarge-scale Probabilistic Functional Modes from resting state fMRI
It is well established that it is possible to observe spontaneous, highly structured, fluctuations in human brain activity from functional magnetic resonance imaging (fMRI) when the subject is 'at rest'. However, characterising this activity in an interpretable manner is still a very open problem. In this paper, we introduce a method for identifying modes of coherent activity from resting state...
متن کاملLarge-scale neuronal network dysfunction in multiple sclerosis?: Evidence from resting-state fMRI.
Neurology 2012;79:1416–1417 After decades of intensive research, the pathogenesis of multiple sclerosis (MS) remains enigmatic. Neuroimaging has fueled the discovery of hitherto underestimated or unknown pathophysiologic aspects of MS, revealing, for example, widespread damage to normal-appearing white matter and cortical and deep gray matter.1 While this growth of neuroimaging knowledge shaped...
متن کاملComplexity Analysis of Resting-State fMRI in Adult Patients with Attention Deficit Hyperactivity Disorder: Brain Entropy
Objective Complexity analysis of functional brain structure data represents a new multidisciplinary approach to examining complex, living structures. I aimed to construct a connectivity map of visual brain activities using resting-state functional magnetic resonance imaging (fMRI) data and to characterize the level of complexity of functional brain activity using these connectivity data. Meth...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Brain Imaging and Behavior
سال: 2013
ISSN: 1931-7557,1931-7565
DOI: 10.1007/s11682-013-9276-6