Results 31 to 40 of about 115,804 (336)

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

Neural Mechanisms of Selective Auditory Attention in Rats (Dissertation) [PDF]

open access: yes, 2008
How does attention modulate sensory representations? In order to probe the underlying neural mechanisms, we established a simple rodent model of modality-specific attention.
Anthony M. Zador, Lung-Hao Tai
core   +2 more sources

Olfactory Loss and Brain Connectivity after COVID-19: Structural Follow-Up at One Year

open access: yesNeural Plasticity, 2023
The structural connectivity from the primary olfactory cortex to the main secondary olfactory areas was previously reported as relatively increased in the medial orbitofrontal cortex in a cohort of 27 recently SARS-CoV-2-infected (COV+) subjects, of ...
Fabrizio Esposito   +9 more
doaj   +1 more source

An Evolutionary Microcircuit Approach to the Neural Basis of High Dimensional Sensory Processing in Olfaction

open access: yesFrontiers in Cellular Neuroscience, 2021
Odor stimuli consist of thousands of possible molecules, each molecule with many different properties, each property a dimension of the stimulus. Processing these high dimensional stimuli would appear to require many stages in the brain to reach odor ...
Gordon M. Shepherd   +2 more
doaj   +1 more source

Facilitatory actions of guanidine on synaptic transmission in mammalian brain slices [PDF]

open access: yes, 1979
Guanidine administration may be beneficial in the treatment of amyotrophic lateral sclerosis and related diseases; however, the actions of guanidine on the mammalian central nervous system have not been investigated.
Galvan, Martin   +2 more
core   +1 more source

Cerebral Cortex Expression of Gli3 Is Required for Normal Development of the Lateral Olfactory Tract. [PDF]

open access: yesPLoS ONE, 2015
Formation of the lateral olfactory tract (LOT) and innervation of the piriform cortex represent fundamental steps to allow the transmission of olfactory information to the cerebral cortex.
Eleni-Maria Amaniti   +3 more
doaj   +1 more source

Synaptophysin and synaptoporin expression in the developing rat olfactory system [PDF]

open access: yes, 1993
The expressions of two closely related synaptic vesicle antigens synaptophysin and synaptoporin were examined in the olfactory system of the adult rat and during pre- and postnatal development.
Bayer   +50 more
core   +1 more source

Convulsant actions of 4-aminopyridine on the guinea-pig olfactory cortex slice [PDF]

open access: yes, 1982
The effects of bath-applied 4-aminopyridine on neurones and extracellular potassium and calcium concentrations were recorded in slices of guinea-pig olfactory cortex. Neurones were orthodromically activated by stimulating the lateral olfactory tract.
Baranyi   +47 more
core   +1 more source

A study of neural activity and functional connectivity within the olfactory brain network in Parkinson's disease

open access: yesNeuroImage: Clinical, 2019
Olfactory dysfunction is an early manifestation of Parkinson's disease (PD). The present study aimed to illustrate potential differences between PD patients and healthy controls in terms of neural activity and functional connectivity within the olfactory
Charalampos Georgiopoulos   +6 more
doaj   +1 more source

Patterns of Gray and White Matter Volume Alterations in Patients With Post-Traumatic Anosmia: A Voxel-Based Morphometry Study

open access: yesFrontiers in Neurology, 2022
ObjectiveTraumatic brain injury is one of the major causes of human olfactory dysfunction and leads to brain structure alterations, mainly in the cortical olfactory regions.
Xing Gao   +5 more
doaj   +1 more source

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