Results 11 to 20 of about 52,860 (309)

Olfactory Optogenetics: Light Illuminates the Chemical Sensing Mechanisms of Biological Olfactory Systems

open access: yesBiosensors, 2021
The mammalian olfactory system has an amazing ability to distinguish thousands of odorant molecules at the trace level. Scientists have made great achievements on revealing the olfactory sensing mechanisms in decades; even though many issues need ...
Ping Zhu   +6 more
doaj   +1 more source

Olfactory bulb surroundings can help to distinguish Parkinson’s disease from non-parkinsonian olfactory dysfunction

open access: yesNeuroImage: Clinical, 2020
Background: The olfactory bulb is one of the first regions of insult in Parkinson’s disease (PD), consistent with the early onset of olfactory dysfunction. Investigations of the olfactory bulb may, therefore, help early pre-motor diagnosis.
Cécilia Tremblay   +2 more
doaj   +1 more source

Nicotinic cholinergic regulation of olfactory bulb blood flow response in aged rats

open access: yesJournal of Physiological Sciences, 2023
In our previous research, we had demonstrated the crucial role of neuronal nicotinic acetylcholine receptors (nAChRs) in potentiation of the olfactory bulb blood flow response to olfactory stimulation in adult rats. The present study examined the effects
Sae Uchida   +3 more
doaj   +1 more source

Olfactory neurogenesis and its role in fear memory modulation

open access: yesFrontiers in Behavioral Neuroscience, 2023
Olfaction is a critical sense that allows animals to navigate and understand their environment. In mammals, the critical brain structure to receive and process olfactory information is the olfactory bulb, a structure characterized by a laminated pattern ...
Monserrat Silvas-Baltazar   +10 more
doaj   +1 more source

Cytological organization of the alpha component of the anterior olfactory nucleus and olfactory limbus

open access: yesFrontiers in Neuroanatomy, 2012
This study describes the microscopic organization of a wedge-shaped area at the intersection of the main and accessory olfactory bulbs, or olfactory limbus , and an additional component of the anterior olfactory nucleus or alpha accessory olfactory bulb ...
Jorge A Larriva-Sahd
doaj   +1 more source

Mechanisms of pattern processing in olfactory bulb-like circuits [PDF]

open access: yes, 2010
The scope of brain research spans several orders of magnitude ranging from small groups of amino acid residues in ion channels to fMRI signals reflecting activity averaged over thousands of neurones. From a theoreticians point of view very interesting
Wiechert, Martin Takeo
core   +1 more source

Connectivity and dynamics in the olfactory bulb [PDF]

open access: yesPLOS Computational Biology, 2021
Dendrodendritic interactions between excitatory mitral cells and inhibitory granule cells in the olfactory bulb create a dense interaction network, reorganizing sensory representations of odors and, consequently, perception. Large-scale computational models are needed for revealing how the collective behavior of this network emerges from its global ...
David E. Chen Kersen   +2 more
openaire   +4 more sources

Dopaminergic modulation of odor responses by local interneurons in the olfactory bulb [PDF]

open access: yes, 2011
The olfactory bulb is one of the few regions in the brain where dopamine is provided locally by an intrinsic population of GABAergic interneurons but their role in processing of sensory information remains ambiguous.
Bundschuh, Sebastian Tylman
core   +1 more source

Topological reorganization of odor representations in the olfactory bulb. [PDF]

open access: yes, 2007
Odors are initially represented in the olfactory bulb (OB) by patterns of sensory input across the array of glomeruli. Although activated glomeruli are often widely distributed, glomeruli responding to stimuli sharing molecular features tend to be ...
Friedrich, Rainer W.   +9 more
core   +1 more source

Optophysiological analysis of pattern classification strategies in the zebrafish olfactory bulb [PDF]

open access: yes, 2012
Classification of overlapping activity patterns is a common problem for sensory systems. For a robust representation of sensory stimuli, neuronal circuits should generalize over input patterns reflecting variations of the same stimulus but separate ...
Niessing, Jörn
core   +1 more source

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