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Functional Connectivity of the Cognitive Cerebellum [PDF]
Frontiers in Systems Neuroscience, 2021 Anatomical tracing, human clinical data, and stimulation functional imaging have firmly established the major role of the (neo-)cerebellum in cognition and emotion. Telencephalization characterized by the great expansion of associative cortices, especially the prefrontal one, has been associated with parallel expansion of the neocerebellar cortex ...
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Connectivity functions and polymatroids
Advances in Applied Mathematics, 2016 A {\em connectivity function on} a set $E$ is a function $ :2^E\rightarrow \mathbb R$ such that $ (\emptyset)=0$, that $ (X)= (E-X)$ for all $X\subseteq E$ and that $ (X\cap Y)+ (X\cup Y)\leq (X)+ (Y)$ for all $X,Y \subseteq E$. Graphs, matroids and, more generally, polymatroids have associated connectivity functions.
Susan Jowett, Geoff Whittle, Songbao Mo
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Dynamic Functional Connectivity
, 2023 Most generally, dynamic functional connectivity (FC) refers to the non-instantaneous couplings across timeseries from a set of brain areas, here as measured by fMRI. This is in contrast to static FC, which is defined as purely instantaneous relations. In this chapter, we provide a hands-on description of a non-exhaustive selection of different methods ...
Ahrends, Christine +1 more
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Insula Functional Connectivity in Schizophrenia [PDF]
Schizophrenia Research, 2019 AbstractThe insula is structurally abnormal in schizophrenia, demonstrating robust reductions in gray matter volume, cortical thickness, and altered gyrification during prodromal, early and chronic stages of the illness. Despite compelling structural alterations, less is known about its functional connectivity, limited by studies considering the insula
Jennifer Urbano Blackford +5 more
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Connectivity of submodular functions
Discrete Mathematics, 1992 AbstractThe notion of connectivity for submodular functions was introduced by Cunningham. This paper relates the connectivity of such a function f to that of certain submodular functions which are derived from f. In particular, we prove a generalisation of the well-known matroid result that, for every element x of a connected matroid M, either the ...
Geoff Whittle, James Oxley
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Compositions of continuous functions and connected functions [PDF]
Proceedings of the American Mathematical Society, 1992 Suppose f : X → Y f:X \to Y is continuous and onto and g : Y → Z g:Y \to Z is such that g ∘ f : X → Z g \circ f:X \to Z has a property we are interested in. For which properties of
Harvey Rosen, Kenneth R. Kellum
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Cerebro-cerebellar connectivity is increased in primary lateral sclerosis
NeuroImage: Clinical, 2015 Increased functional connectivity in resting state networks was found in several studies of patients with motor neuron disorders, although diffusion tensor imaging studies consistently show loss of white matter integrity.
Avner Meoded +5 more
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Dissect Relationships Between Gene Co-expression and Functional Connectivity in Human Brain
Frontiers in Neuroscience, 2021 Although recent evidence indicates an association between gene co-expression and functional connectivity in human brain, specific association patterns remain largely unknown.
Xue Zhang +12 more
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Globally weaker and topologically different: resting-state connectivity in youth with autism
Molecular Autism, 2017 Background There is a lack of agreement about functional connectivity differences in individuals with autism spectrum disorder (ASD). Studies using absolute strength have found reduced connectivity, while those using relative strength––a measure of ...
Benjamin E. Yerys +5 more
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Alzheimer’s Research & Therapy, 2023 Background Alzheimer’s disease is a neurodegenerative disorder associated with the abnormal deposition of pathological processes, such as amyloid-ß and tau, which produces nonlinear changes in the functional connectivity patterns between different brain ...
Mite Mijalkov +6 more
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