Results 41 to 50 of about 1,303 (175)

Psychophysical assessment of olfactory and gustatory function in post‐mild COVID‐19 patients: A matched case‐control study with 2‐year follow‐up

open access: yesInternational Forum of Allergy &Rhinology, Volume 13, Issue 10, Page 1864-1875, October 2023., 2023
Abstract Background The aim of this study was to psychophysically evaluate the prevalence of smell and taste dysfunction 2 years after mildly symptomatic severe acute respiratory syndrome–coronavirus‐2 (SARS‐CoV‐2) infection compared to that observed at 1‐year follow‐up and while considering the background of chemosensory dysfunction in the no ...
Paolo Boscolo‐Rizzo   +16 more
wiley   +1 more source

Optimization of mRNA extraction from human nasal mucosa biopsies for gene expression profile analysis by qRT‐PCR

open access: yesClinical Anatomy, Volume 36, Issue 7, Page 1001-1006, October 2023., 2023
Abstract Quantitative real‐time reverse transcriptase polymerase chain reaction (qRT‐PCR) is the gold‐standard method for analyzing modifications in gene expression in cells and tissues. However, large quantities of high‐quality RNA samples are needed for analyzing the expression of multiple genes from one human tissue sample.
A. U. Bräuer   +5 more
wiley   +1 more source

Why human olfaction should not be modeled on theories and tasks of vision

open access: yesFrontiers in Psychology, 2023
In this paper we analyze some key concepts and problems in olfaction and argue that many concepts borrowed from vision are not helpful in elucidating the functions of human olfaction. This is illustrated with several examples.
Per Møller, Egon P. Köster
doaj   +1 more source

Chemesthesis from volatile organic compounds: Psychophysical and neural responses. [PDF]

open access: yesPhysiology & Behavior, 2006
In Experiment 1, subjects sought to localize the nostril stimulated, left or right, in tests with nine esters (acetates, propionates, and butyrates) at concentrations meant to trigger chemesthesis (pungency, irritation). The task produced psychometric functions for chemesthetic detection unconfounded by olfactory sensations.
W. Cain   +6 more
semanticscholar   +5 more sources

The association of gustatory dysfunction, olfactory dysfunction, and cognition in older adults

open access: yesInternational Forum of Allergy &Rhinology, Volume 13, Issue 9, Page 1577-1583, September 2023., 2023
Abstract Background The association of gustatory dysfunction (GD) with quality of life (QOL) and cognition in older adults is understudied. Our objective was to study the prevalence of GD in the community and explore impacts and associated factors. Methods A prospective, multi‐institutional, pre‐corona virus disease (COVID) cohort of adults aged 50 ...
Jose L. Mattos   +4 more
wiley   +1 more source

TRPV1 Receptors and Nasal Trigeminal Chemesthesis [PDF]

open access: yesChemical Senses, 2006
The trigeminal nerve responds to a wide variety of irritants. Trigeminal nerve fibers express several receptors that respond to chemicals, including TRPV1 (vanilloid) receptors, acid-sensing ion channels, P2X (purinergic) receptors, and nicotinic acetylcholine receptors.
Wayne L, Silver   +3 more
openaire   +2 more sources

Taste and Smell: A Unifying Chemosensory Theory [PDF]

open access: yes, 2022
Since antiquity, the sense of smell (olfaction) is considered as a distance sense, just like sight and hearing. Conversely, the sense of taste (gustation) is thought to operate by direct contact, similarly to touch. With the progress of natural sciences,
Amodeo, Pietro   +14 more
core   +9 more sources

Good is sweet and bad is bitter: Conflation of affective value of aromas with taste qualities in untrained participants

open access: yesJournal of Sensory Studies, Volume 38, Issue 3, June 2023., 2023
Abstract In sensory evaluation, trained panelists are recommended to accurately assess complex flavors. However, many researchers assume that “simpler” qualities such as basic tastes can be reliably assessed by untrained individuals. In this work, we tested whether untrained participants would conflate the basic tastes of “bitter” and “sweet” with the ...
Lissa A. Davis, Cordelia A. Running
wiley   +1 more source

Brain activity associated with taste stimulation: A mechanism for neuroplastic change?

open access: yesBrain and Behavior, Volume 13, Issue 4, April 2023., 2023
Abstract Purpose Neuroplasticity may be enhanced by increasing brain activation and bloodflow in neural regions relevant to the target behavior. We administered precisely formulated and dosed taste stimuli to determine whether the associated brain activity patterns included areas that underlie swallowing control. Methods Five taste stimuli (unflavored,
Angela M. Dietsch   +2 more
wiley   +1 more source

Electrical Generation of Intranasal Irritating Chemosensation

open access: yesIEEE Access, 2021
Percutaneous electrical stimulation modifies brain and nerve excitability and also stimulates various sensory organs. Although it can be applied to sensory information displays, virtual reality, and human augmentation, the effect on human intranasal ...
Kazuma Aoyama   +7 more
doaj   +1 more source

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