Zobrazeno 1 - 10
of 170
pro vyhledávání: '"Event-related functional magnetic resonance imaging"'
Autor:
Norfleet, David George
The default mode network (DMN) is a highly cited neural network whose functional roles are not well understood. Until recently, event related fMRI experiments used to study the DMN could only be conducted in an open-loop format. The purpose of this s
Externí odkaz:
http://hdl.handle.net/10919/115591
Publikováno v:
Journal of the Royal Statistical Society Series C: Applied Statistics. 66:73-91
Summary New computer algorithms for finding D-optimal designs of stimulus sequence for functional magnetic resonance imaging (MRI) experiments are proposed. Although functional MRI data are commonly analysed by linear models, the construction of a fu
Autor:
Ludwig Fahrmeir, Philipp G. Sämann, Michael Czisch, Ludwig Bothmann, Christina Yassouridis, Stefanie Kalus
Publikováno v:
Human Brain Mapping. 36:731-743
Functional magnetic resonance imaging (fMRI) activation detection within stimulus-based experimental paradigms is conventionally based on the assumption that activation effects remain constant over time. This assumption neglects the fact that the str
Autor:
Haifeng Chang, Zhe Li, Mark S. Gold, Ying Zheng, Jia Zhu, Yarong Wang, Wei Wang, Xuejiao Yan, Yongbin Li, Hanyue Wang, Dongsheng Zhang, Qiang Li, Lina Wang, Yi Zhang, Wei Li, Jie Tian, Yijun Liu, Min Fan
Publikováno v:
Addiction Biology. 20:968-978
Abnormal salience attribution is implicated in heroin addiction. Previously, combining functional magnetic resonance imaging (fMRI) and a drug cue-reactivity task, we demonstrated abnormal patterns of subjective response and brain reactivity in heroi
Autor:
Patrizia Vannini, Lars-Olof Wahlund, Andrea Federspiel, Helge Horn, Thomas Dierks, Silvana Galderisi, Umberto Volpe, Anders Franck, Mario Maj
Publikováno v:
Hum Brain Mapp
Previous studies on motion perception revealed motion-processing brain areas sensitive to changes in luminance and texture (low-level) and changes in salience (high-level). The present functional magnetic resonance imaging (fMRI) study focused on mot
Autor:
Ming-Hung Kao, Hans D. Mittelmann
Publikováno v:
Journal of Statistical Computation and Simulation. 84:2391-2407
We propose a novel, efficient approach for obtaining high-quality experimental designs for event-related functional magnetic resonance imaging (ER-fMRI), a popular brain mapping technique. Our proposed approach combines a greedy hill-climbing algorit
Autor:
Andrea Federspiel, Silvia Chaves, Thomas Nyffeler, Kay Jann, Daniela Hubl, Pascal Wurtz, Patrizia Vannini, Roland Wiest, Thomas Dierks, René M. Müri, Mathias Luethi
Publikováno v:
NeuroImage. 59:3652-3661
In the present multi-modal study we aimed to investigate the role of visual exploration in relation to the neuronal activity and performance during visuospatial processing. To this end, event related functional magnetic resonance imaging er-fMRI was
Autor:
Ilona M. Schmalfuss, David A.S. Kaufman, Michael J. Larson, Christopher N. Sozda, William M. Perlstein
Publikováno v:
International Journal of Psychophysiology. 82:97-106
Continuous monitoring of one's performance is invaluable for guiding behavior towards successful goal attainment by identifying deficits and strategically adjusting responses when performance is inadequate. In the present study, we exploited the adva
Publikováno v:
The Open Neuroscience Journal. 5:24-30
In recent years, the neural substrates underlying outcome feedback processing have been investigated in several neuroimaging studies of feedback-based learning. However, what has been missed in these studies is that, the learning process itself also
Publikováno v:
Journal of Paediatrics and Child Health. 47:429-435
Aim: To assess the working memory and explore the differential activations of brain areas in children with primary nocturnal enuresis (PNE) by performing functional magnetic resonance imaging (fMRI) scans using the categorical N-Back task. Methods: T