Results 11 to 20 of about 497,866 (292)

Cerebral Cortex and Olfactory Apparatus

open access: yes, 2017
This section contains a gallery of original Cajal drawings pertaining to the cerebral cortex and olfactory apparatus.
Javier DeFelipe
openaire   +2 more sources

Olfactory-trigeminal integration in the primary olfactory cortex. [PDF]

open access: yesHum Brain Mapp, 2020
ABSTRACT Humans naturally integrate signals from the olfactory and intranasal trigeminal systems. A tight interplay has been demonstrated between these two systems, and yet the underlying neural circuitry that mediates olfactory-trigeminal integration remains poorly understood.
Karunanayaka PR   +4 more
europepmc   +4 more sources

Pyramidal Cells in Olfactory Cortex. [PDF]

open access: yesChem Senses, 2021
Abstract The neocortex and olfactory cortices share many features including their laminar organization, developmental sequences, and cell types. Previous work indicates that neocortical pyramidal cells exhibit a gradient of dendritic size: cells involved in the initial processing of information are less complex than those in subsequent ...
Brunjes PC.
europepmc   +4 more sources

A topographical organization in the primary olfactory cortex. [PDF]

open access: yesNat Commun
A key principle of most sensory cortices is their topographic organization, in which neurons in proximity exhibit similar tuning properties, typically varying along a specific stimulus feature. However, such an organization has not yet been identified in the olfactory system.
Taragin S   +4 more
europepmc   +3 more sources

Attentional modulation in human primary olfactory cortex

open access: yesNature Neuroscience, 2004
Central to the concept of attention is the fact that identical stimuli can be processed in different ways. In olfaction, attention may designate the identical flow of air through the nose as either respiration or olfactory exploration. Here we have used functional magnetic resonance imaging (fMRI) to probe this attentional mechanism in primary ...
Zelano, Christina   +8 more
openaire   +3 more sources

Individual odor hedonic perception is coded in temporal joint network activity

open access: yesNeuroImage, 2021
Intro: The human sense of smell is highly individual and characterized by a strong variability in the perception and evaluation of olfactory stimuli, depending on cultural imprint and current physiological conditions.
Paul Ruser   +4 more
doaj   +1 more source

Neuropeptide S facilitates mice olfactory function through activation of cognate receptor-expressing neurons in the olfactory cortex. [PDF]

open access: yesPLoS ONE, 2013
Neuropeptide S (NPS) is a newly identified neuromodulator located in the brainstem and regulates various biological functions by selectively activating the NPS receptors (NPSR). High level expression of NPSR mRNA in the olfactory cortex suggests that NPS-
Yu-Feng Shao   +7 more
doaj   +1 more source

Assessment of olfactory information in the human brain using 7-Tesla functional magnetic resonance imaging

open access: yesNeuroImage, 2021
Olfaction could prove to be an early marker of neurodegenerative diseases, including Alzheimer's and Parkinson's diseases. To use olfaction for disease diagnosis, elucidating the standard olfactory functions in healthy humans is necessary.
Yuka Donoshita   +3 more
doaj   +1 more source

Representational drift in primary olfactory cortex [PDF]

open access: yesNature, 2020
Summary Representations of the external world in sensory cortices may define the identity of a stimulus and should therefore vary little over the life of the organism. In the olfactory system the primary olfactory cortex, piriform, is thought to determine odor identity 1–6 . We have
Carl E. Schoonover   +3 more
openaire   +2 more sources

Entorhinal cortex and parahippocampus volume reductions impact olfactory decline in aged subjects

open access: yesBrain and Behavior, 2021
Introduction Pathological abnormalities first appear in the medial temporal regions including entorhinal cortex and parahippocampus in patients with Alzheimer's disease.
Natsuko Iizuka   +13 more
doaj   +1 more source

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