Results 11 to 20 of about 521,614 (247)

The role of transmitter diffusion and flow versus extracellular vesicles in volume transmission in the brain neural–glial networks [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2015
Dasiel O Borroto-Escuela   +2 more
exaly   +2 more sources

Striatal Cholinergic Signaling in Time and Space

open access: yesMolecules, 2022
The cholinergic interneurons of the striatum account for a small fraction of all striatal cell types but due to their extensive axonal arborization give the striatum the highest content of acetylcholine of almost any nucleus in the brain.
Dvyne Nosaka, Jeffery R. Wickens
doaj   +1 more source

Neurobiological reduction: From cellular explanations of behavior to interventions

open access: yesFrontiers in Psychology, 2022
Scientific reductionism, the view that higher level functions can be explained by properties at some lower-level or levels, has been an assumption of nervous system analyses since the acceptance of the neuron doctrine in the late 19th century, and became
David Parker
doaj   +1 more source

Nicotinic modulation of cortical circuits

open access: yesFrontiers in Neural Circuits, 2014
The ascending cholinergic neuromodulatory system sends projections throughout cortex and has been shown to play an important role in a number of cognitive functions including arousal, working memory, and attention. However, despite a wealth of behavioral
Sergio eArroyo   +2 more
doaj   +1 more source

Cycling of dense core vesicles involved in somatic exocytosis of serotonin by leech neurons

open access: yesFrontiers in Physiology, 2012
We studied the cycling of dense core vesicles producing somatic exocytosis of serotonin. Our experiments were made using electron microscopy and vesicle staining with fluorescent dye FM1-43 in Retzius neurons of the leech, which secrete serotonin from ...
Citlali eTrueta   +2 more
doaj   +1 more source

Expression Patterns of the Neuropeptide Urocortin 3 and Its Receptor CRFR2 in the Mouse Central Auditory System

open access: yesFrontiers in Neural Circuits, 2021
Sensory systems have to be malleable to context-dependent modulations occurring over different time scales, in order to serve their evolutionary function of informing about the external world while also eliciting survival-promoting behaviors. Stress is a
Sara Pagella   +2 more
doaj   +1 more source

Investigations into potential extrasynaptic communication between the dopaminergic and nitrergic systems

open access: yesFrontiers in Physiology, 2012
Nitric oxide is unconstrained by cell membranes and can therefore act along a broad distance as a volume transmitter. Spillover of nitric oxide between neurons may have a major impact on central nervous system diseases and particularly on ...
Miso eMitkovski   +8 more
doaj   +1 more source

A Multidisciplinary Hypothesis about Serotonergic Psychedelics. Is it Possible that a Portion of Brain Serotonin Comes From the Gut?

open access: yesJournal of Integrative Neuroscience, 2022
Here we present a complex hypothesis about the psychosomatic mechanism of serotonergic psychedelics. Serotonergic psychedelics affect gut microbes that produce a temporary increase of 5-HT by their host enterochromaffin cells (ECs).
Noémi Császár-Nagy   +2 more
doaj   +1 more source

The satiety signaling neuropeptide perisulfakinin inhibits the activity of central neurons promoting general activity

open access: yesFrontiers in Cellular Neuroscience, 2007
The metabolic state is one of the determinants of the general activity level. Satiety is related to resting or sleep whereas hunger correlates to wakefulness and activity.
Dieter Wicher   +5 more
doaj   +1 more source

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