نتایج جستجو برای: well pattern connectivity

تعداد نتایج: 1865182  

2014
Henry Soldano Guillaume Santini

We address the problem of finding patterns in an attributed graph. Our approach consists in extending the standard methodology of frequent closed pattern mining to the case in which the set of objects, in which are found the pattern supports, is the set of vertices of a graph, typically representing a social network. The core idea is then to define graph abstractions as subsets of the vertices ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1388

چکیده ندارد.

2017
Francesco Cerritelli Piero Chiacchiaretta Francesco Gambi Antonio Ferretti

Touch has been always regarded as a powerful communication channel playing a key role in governing our emotional wellbeing and possibly perception of self. Several studies demonstrated that the stimulation of C-tactile afferent fibers, essential neuroanatomical elements of affective touch, activates specific brain areas and the activation pattern is influenced by subject's attention. However, n...

Journal: :Annals of neurology 2013
Raquel C Gardner Adam L Boxer Andrew Trujillo Jacob B Mirsky Christine C Guo Efstathios D Gennatas Hilary W Heuer Eric Fine Juan Zhou Joel H Kramer Bruce L Miller William W Seeley

OBJECTIVE Progressive supranuclear palsy (PSP) has been conceptualized as a large-scale network disruption, but the specific network targeted has not been fully characterized. We sought to delineate the affected network in patients with clinical PSP. METHODS Using task-free functional magnetic resonance imaging, we mapped intrinsic connectivity to the dorsal midbrain tegmentum (dMT), a region...

Journal: :Neuroscience 2010
T Medkour A T Walden A P Burgess V B Strelets

If, as is widely believed, schizophrenia is characterized by abnormalities of brain functional connectivity, then it seems reasonable to expect that different subtypes of schizophrenia could be discriminated in the same way. However, evidence for differences in functional connectivity between the subtypes of schizophrenia is largely lacking and, where it exists, it could be accounted for by cli...

سفیانیان, علیرضا, فاخران , سیما, ملکوتی‌خواه, شیما,

Modeling of ecological connectivity across landscape is important for understanding a wide range of ecological processes. Modeling ecological connectivity between habitats and incorporating these models into conservation planning require quantifying the effect of spatial patterns of landscape on the degree of habitats connectivity. Recently, concepts from electrical circuit theory have been ad...

Journal: :Cortex; a journal devoted to the study of the nervous system and behavior 2013
Norman A S Farb Cheryl L Grady Stephen Strother David F Tang-Wai Mario Masellis Sandra Black Morris Freedman Bruce G Pollock Karen L Campbell Lynn Hasher Tiffany W Chow

INTRODUCTION Degraded social function, disinhibition, and stereotypy are defining characteristics of frontotemporal dementia (FTD), manifesting in both the behavioral variant of frontotemporal dementia (bvFTD) and semantic dementia (SD) subtypes. Recent neuroimaging research also associates FTD with alterations in the brain's intrinsic connectivity networks. The present study explored the relat...

2015
Peter McColgan Kiran K. Seunarine Adeel Razi James H. Cole Sarah Gregory Alexandra Durr Raymund A. C. Roos Julie C. Stout Bernhard Landwehrmeyer Rachael I. Scahill Chris A. Clark Geraint Rees Sarah J. Tabrizi

Huntington’s disease can be predicted many years before symptom onset, and thus makes an ideal model for studying the earliest mechanisms of neurodegeneration. Diffuse patterns of structural connectivity loss occur in the basal ganglia and cortex early in the disease. However, the organizational principles that underlie these changes are unclear. By understanding such principles we can gain ins...

Journal: :Biological psychiatry 2015
Amanda J Khan Aarti Nair Christopher L Keown Michael C Datko Alan J Lincoln Ralph-Axel Müller

BACKGROUND The cerebellum plays important roles in sensori-motor and supramodal cognitive functions. Cellular, volumetric, and functional abnormalities of the cerebellum have been found in autism spectrum disorders (ASD), but no comprehensive investigation of cerebro-cerebellar connectivity in ASD is available. METHODS We used resting-state functional connectivity magnetic resonance imaging i...

Habitat and ecosystem fragmentation and, consequently, the loss of landscape connectivity are major causes of biodiversity destruction, leading to disruption of material, energy, and information flow at the landscape scale. Given the importance of this issue, the current study aimed to evaluate the ecological connectivity and spatial planning of Qazvin Province, in order to re-establish and pro...

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