Results 11 to 20 of about 600,580 (263)

Laminar distribution of phase-amplitude coupling of spontaneous current sources and sinks

open access: yesFrontiers in Neuroscience, 2015
Although resting-state functional connectivity is a commonly used neuroimaging paradigm, the underlying mechanisms remain unknown. Thalamo-cortical and cortico-cortical circuits generate oscillations at different frequencies during spontaneous activity ...
Roberto C Sotero   +6 more
doaj   +1 more source

On the origin of spontaneous activity in the bladder [PDF]

open access: yesBJU International, 2015
Objectives To characterise separately the pharmacological profiles of spontaneous contractions from the mucosa and detrusor layers of the bladder wall and to describe the relationship in mucosa between adenosine triphosphate (ATP) release and spontaneous contractions.
Kushida, N, Fry, Chris H
openaire   +3 more sources

Cortico-cortical communication dynamics

open access: yesFrontiers in Systems Neuroscience, 2014
IIn principle, cortico-cortical communication dynamics is simple: neurons in one cortical area communicate by sending action potentials that release glutamate and excite their target neurons in other cortical areas.
Per E Roland   +2 more
doaj   +1 more source

Barbed channels enhance unidirectional connectivity between neuronal networks cultured on multi electrode arrays.

open access: yesFrontiers in Neuroscience, 2015
Cultured neurons on multi electrode arrays (MEAs) have been widely used to study various as-pects of neuronal (network) functioning. A possible drawback of this approach is the lack of structure in these networks.
Joost eLe Feber   +4 more
doaj   +1 more source

Excitatory neurotransmission activates compartmentalized calcium transients in Müller glia without affecting lateral process motility

open access: yeseLife, 2021
Neural activity has been implicated in the motility and outgrowth of glial cell processes throughout the central nervous system. Here, we explore this phenomenon in Müller glia, which are specialized radial astroglia that are the predominant glial type ...
Joshua M Tworig   +2 more
doaj   +1 more source

Clinical applications of resting state functional connectivity

open access: yesFrontiers in Systems Neuroscience, 2010
During resting conditions the brain remains functionally and metabolically active. One manifestation of this activity that has become an important research tool is spontaneous fluctuations in the blood oxygen level dependent (BOLD) signal of fMRI.
Michael D Fox, Michael Greicius
doaj   +1 more source

Spontaneous and evoked activity patterns diverge over development

open access: yeseLife, 2021
The immature brain is highly spontaneously active. Over development this activity must be integrated with emerging patterns of stimulus-evoked activity, but little is known about how this occurs.
Lilach Avitan   +5 more
doaj   +1 more source

Hierarchical and homotopic correlations of spontaneous neural activity within the visual cortex of the sighted and blind

open access: yesFrontiers in Human Neuroscience, 2015
Spontaneous neural activity within visual cortex is synchronized by both monosynaptic, hierarchical connections between visual areas and indirect, network-level activity.
Omar H Butt   +3 more
doaj   +1 more source

Beyond dreams: do sleep-related movements contribute to brain development?

open access: yesFrontiers in Neurology, 2010
Conventional wisdom has long held that the twitches of sleeping infants and adults are by-products of a dreaming brain. With the discovery of active (or REM) sleep in the 1950s and the recognition soon thereafter that active sleep is characterized by ...
Mark S Blumberg
doaj   +1 more source

Sloppiness in Spontaneously Active Neuronal Networks [PDF]

open access: yesThe Journal of Neuroscience, 2015
Various plasticity mechanisms, including experience-dependent, spontaneous, as well as homeostatic ones, continuously remodel neural circuits. Yet, despite fluctuations in the properties of single neurons and synapses, the behavior and function of neuronal assemblies are generally found to be very stable over time. This raises the important question of
Dagmara Panas   +6 more
openaire   +2 more sources

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