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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
A, Mitra +3 more
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Temporal dynamics in fMRI resting-state activity [PDF]
In a significant new study, Mitra et al. (1) demonstrate the existence of reproducible temporal patterns of spontaneous activity from human functional magnetic resonance imaging (fMRI) recordings. This finding and the novel methods used to demonstrate it bring the question of the role of temporally patterned activity into the domain of human cognition.
Rafael, Yuste, Adrienne L, Fairhall
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Hemodynamic and electrophysiological evidence of resting-state network activity in the primate [PDF]
An expanding body of literature describes the existence of concerted brain activations in the absence of any external stimuli. Resting-state networks have been identified and demonstrated to be modulated during the performance of specific cognitive ...
Allen Ardestani +4 more
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The current data provide information about altered activities of the default mode network (DMN) after applying transcranial direct current stimulation (tDCS) over the frontopolar prefrontal cortex. To explore whether frontopolar tDCS with a small current
Jeesung Ahn +4 more
doaj +1 more source
fMRI biomarkers of social cognitive skills training in psychosis: Extrinsic and intrinsic functional connectivity. [PDF]
Social cognitive skills training interventions for psychotic disorders have shown improvement in social cognitive performance tasks, but little was known about brain-based biomarkers linked to treatment effects.
Green, Michael F +3 more
core +2 more sources
Optimizing Stimulation and Analysis Protocols for Neonatal fMRI [PDF]
The development of brain function in young infants is poorly understood. The core challenge is that infants have a limited behavioral repertoire through which brain function can be expressed.
Arichi, T +5 more
core +1 more source
State-Dependent Effective Connectivity in Resting-State fMRI
The human brain at rest exhibits intrinsic dynamics transitioning among the multiple metastable states of the inter-regional functional connectivity. Accordingly, the demand for exploring the state-specific functional connectivity increases for a deeper ...
Hae-Jeong Park +18 more
doaj +1 more source
Altered regional homogeneity in pediatric bipolar disorder during manic state: a resting-state fMRI study. [PDF]
UNLABELLED: Pediatric bipolar disorder (PBD) is a severely debilitating illness, which is characterized by episodes of mania and depression separated by periods of remission. Previous fMRI studies investigating PBD were mainly task-related.
Qian Xiao +6 more
doaj +1 more source
Resting-state fMRI: new possibilities for studying physiology and pathology of the brain
A new method, resting-state fMRI, has been proposed recentlfor studying basic sensory, emotional, and cognitive processes inhealthy and neurologically affected subjects.
E. V. Seliverstova +3 more
doaj +1 more source
Multiscale network activity in resting state fMRI [PDF]
The brain is inherently multiscalar in both space and time. We argue that this multiscalar nature is reflected in the blood oxygenation level dependent (BOLD) fluctuations used to map functional connectivity. We present evidence that global fluctuations in activity, quasiperiodic spatiotemporal patterns, and aperiodic time-varying activity coexist ...
Shella D, Keilholz +7 more
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