نتایج جستجو برای: well pattern connectivity

تعداد نتایج: 1865182  

Journal: :Brain research 2012
A Maudoux Ph Lefebvre J-E Cabay A Demertzi A Vanhaudenhuyse S Laureys A Soddu

Thirteen chronic tinnitus patients and fifteen age-matched healthy controls were studied on a 3T magnetic resonance imaging (MRI) scanner during resting condition (i.e. eyes closed, no task performance). The auditory resting-state component was selected using an automatic component selection approach. Functional connectivity (correlations/anti-correlations) in the extracted network was portraye...

2017
Tiger w. Lin Giri P. Krishnan Maxim Bazhenov Terrence J. Sejnowski

Measuring functional connectivity from fMRI is important in understanding processing in cortical networks. However, because brain’s connection pattern is complex, currently used methods are prone to produce false connections. We introduce here a new method that uses derivative for estimating functional connectivity. Using simulations, we benchmarked our method with other commonly used methods. ...

Journal: :International Journal of Environmental Research and Public Health 2009

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2015
Linda Geerligs Mikail Rubinov Cam-Can Richard N Henson

UNLABELLED Resting-state functional connectivity, as measured by functional magnetic resonance imaging (fMRI), is often treated as a trait, used, for example, to draw inferences about individual differences in cognitive function, or differences between healthy or diseased populations. However, functional connectivity can also depend on the individual's mental state. In the present study, we exa...

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...

2013
Jose O. Maximo Christopher L. Keown Aarti Nair Ralph-Axel Müller

While the literature on aberrant long-distance connectivity in autism spectrum disorder (ASD) has grown fast over the past decade, little is known about local connectivity. We used regional homogeneity and local density approaches at different spatial scales to examine local connectivity in 29 children and adolescents with ASD and 29 matched typically developing participants, using resting stat...

2004
Akihito Tokuda Asako Koike Toshihisa Takagi

Interaction among genes and gene products has a major role in many cellular processes. Obtaining an accurate picture of protein-protein interactions is one of the major challenges to the systematic understanding of cellular activity. While there are reliable but time-consuming experimental techniques to determine interactions, there have been developed a variety of high-throughput methods to ob...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1387

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه 1389

چکیده ندارد.

2017
Scott Rich Michal Zochowski Victoria Booth

The interconnectivity between excitatory and inhibitory neural networks informs mechanisms by which rhythmic bursts of excitatory activity can be produced in the brain. One such mechanism, Pyramidal Interneuron Network Gamma (PING), relies primarily upon reciprocal connectivity between the excitatory and inhibitory networks, while also including intra-connectivity of inhibitory cells. The causa...

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