نتایج جستجو برای: functional imaging
تعداد نتایج: 996480 فیلتر نتایج به سال:
Measuring functional magnetic resonance imaging (fMRI) responses to parametric stimulus variations in imaging experiments can elucidate how sensory information is represented in the brain. However, a potential limitation of this approach is that fMRI responses reflect only a regional average of neuronal activity. For this reason stimulus-induced changes in fMRI signal may not always reflect how...
The lymphomas are a heterogeneous group of malignancies derived from lymphoid tissue. They consist of a number of distinct disease entities with varying natural histories and prognoses. Great advances have been made in the clinical management of lymphomas. A better understanding of the histopathology and immunology has led to improvements in the diagnosis and classification of the disease. Impr...
In offered work the series of problems of an analytical number theory is surveyed. This problems have direct and defining reflection in prime numbers distribution. For their solving the new method called as a method of fillings was developed. In basis of its the functional imaging lays of the integrated characteristics and elements of all period of generators grids on an interval, and the syste...
At the meeting I consider work that addresses the bases for human temporal processing using two approaches; functional imaging using PET and fMRI and psychophysical studies of neurological patients with central lesions. The discussion below is primarily concerned with recent fMRI data addressing mechanisms of temporal processing in the brainstem and cortex. The intention is to highlight areas o...
From 03/2009 to 09/2009, 50 patients underwent digital Full Field Mammography (detector: resolution 70lm) (Fa. Siemens) and, after diagnosis and preoperative wire localization, digital Full Field Mammography (detector: resolution 50lm) (Fa. FujiFilm) with the same exposure parameters. Five investigators retrospectively determined the diagnosis after the operation from randomly distributed medio...
The analysis of myocardial contraction and relaxation demands high temporal and spatial resolution. Therefore any significant improvement in imaging speed, without sacrificing image quality is welcome since more volume can be covered in the same time. In this contribution kt-Blast [1] was applied to accelerate phase contrast velocity-encoded black-blood functional imaging of the heart. The quan...
nformation processing in the primate brain is based on the complementary principles of modular and distributed information rocessing. The former emphasizes the specialization of functions within different brain areas. The latter emphasizes the massively arallel nature of brain networks and the fact that function also emerges from the flow of information between brain areas. The ocalization of f...
Many of the chapters here concerned with experimental work (both for neurophysiological recordings and functional imaging measurements) have taken advantage of powerful machine learning techniques developed in the last several decades. Here we describe the underlying mathematics, discuss issues that are relevant to those who study the brain, and summarize current applications of these technique...
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