نتایج جستجو برای: functional connection

تعداد نتایج: 676735  

Background and purpose: Insomnia is a common sleep disorder with negative consequences such as decreased quality of life. In this study, the effect of sleep deprivation on memory in both young and older adults was investigated using functional magnetic resonance imaging (fMRI). Materials and methods: In this retrospective study, fMRI data of 40 healthy subjects (17 young and 23 older people) w...

Introduction: This study aimed to assess the effect of controlled mouth breathing during the resting state using functional magnetic resonance imaging (fMRI). Methods: Eleven subjects participated in this experiment in which the controlled “Nose” and “Mouth” breathings of 6 s respiratory cycle were performed with a visual cue at 3T MRI. Voxel-wise seed-to-voxel maps and whole-brain region of i...

2012
Angelica Staniloiu Hans J. Markowitsch

Remembering the past is a core feature of human beings, enabling them to maintain a sense of wholeness and identity and preparing them for the demands of the future. Forgetting operates in a dynamic neural connection with remembering, allowing the elimination of unnecessary or irrelevant information overload and decreasing interference. Stress and traumatic experiences could affect this connect...

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: :مهندسی عمران فردوسی 0
هاشم شریعتمدار حمیدرضا عباسیان

large panel precast structures are analyzed based on the connection rigidity. however, the connections undergo nonlinear and inelastic response, when subjected to seismic loads. thus, to study the actual behavior of structure, the connection nonlinearity should be implemented in the joints. in this paper, three conventional connection types are modeled based on the envelope of their cyclic resp...

2004
Christos Christopoulos Phillip Sewell Y. K. Choong

The paper describes the hierarchy of models used in the modeling of interconnects in high-speed designs and focuses on the development of techniques needed for the high-frequency simulation of complete modules.

2011
Benjamin Perret Sébastien Lefèvre Christophe Collet

We propose an evolution of the hyper-connection axiomatic in order to improve the consistency of hyper-connected filters and to simplify their design. Our idea relies on the principle that the decomposition of an image into h-components must be necessary and sufficient. We propose a set of three equivalent axioms to achieve this goal. We show that an existing h-connection already fulfills these...

Journal: :AI Commun. 2004
Ivo Düntsch Michael Winter

We consider Boolean algebras endowed with a contact relation which are abstractions of Boolean algebras of regular closed sets together with Whitehead’s connection relation [17], in which two non-empty regular closed sets are connected if they have a non-empty intersection. These are standard examples for structures used in qualitative reasoning, mereotopology, and proximity theory. We exhibit ...

Journal: :British heart journal 1973
R E Bonham-Carter

Journal: :Circulation. Cardiovascular imaging 2014
Kandice Mah Mark K Friedberg

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