منابع مشابه
Lag structure in resting-state fMRI.
The discovery that spontaneous fluctuations in blood oxygen level-dependent (BOLD) signals contain information about the functional organization of the brain has caused a paradigm shift in neuroimaging. It is now well established that intrinsic brain activity is organized into spatially segregated resting-state networks (RSNs). Less is known regarding how spatially segregated networks are integ...
متن کاملTitle: Lag Structure in Resting State Fmri 1 2
Title: Lag structure in resting state fMRI 1 2 Authors: A. Mitra, A.Z. Snyder, C.D. Hacker, M.E. Raichle 3 4 5 1) Department of Radiology, Washington University, St. Louis, MO 63110, USA. 6 7 2) Department of Biomedical Engineering, Washing University, St. Louis, MO 63110, USA. 8 9 3) Department of Neurology, Washington University, St Louis, MO 63110, USA 10 11 Running Head: Lags in rs-fMRI 12 ...
متن کاملTemporal dynamics in fMRI resting-state activity.
The Brain as a Dynamical Machine What the brain does is ultimately simple: it takes in sensory information, transforms it into an abstract code of spikes, and uses it to generate motor patterns. This spike code thus constitutes a mental representation of the world, which interacts with memories, expectations, motivations, and other internal states of the animal to generate a series of behaviors...
متن کاملDynamic effective connectivity in resting state fMRI
Context-sensitive and activity-dependent fluctuations in connectivity underlie functional integration in the brain and have been studied widely in terms of synaptic plasticity, learning and condition-specific (e.g., attentional) modulations of synaptic efficacy. This dynamic aspect of brain connectivity has recently attracted a lot of attention in the resting state fMRI community. To explain dy...
متن کاملBrain Connections – Resting State fMRI Functional Connectivity
With the introduction of electroencephalography (EEG) in 1930, researchers began to explore spontaneous activity in the brain by recording the individual, independently of any task. Subsequently, evoked potential studies, where electrical potentials were recorded at the onset of a stimulus, marked a milestone in brain research. Utilizing such methods coupled with experimental psychology, resear...
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ژورنال
عنوان ژورنال: Journal of Neurophysiology
سال: 2014
ISSN: 0022-3077,1522-1598
DOI: 10.1152/jn.00804.2013