Results 251 to 260 of about 24,515 (293)
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Retronasal Perception of Odors
Chemistry & Biodiversity, 2008AbstractOdors often produce different sensations when presented in front of the nose or intraorally, when eaten. It is a long‐standing question whether these differences in sensations are due, for example, to the additional mechanical sensations elicited by the food in the mouth or additional odor release during mastication. To study this phenomenon in
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Odorant–Receptor Interactions and Odor Percept: A Chemical Perspective
Chemistry & Biodiversity, 2008AbstractReceptor–ligand interaction models are generally based on a ‘lock and key’ concept. How far this holds true for olfactory receptors and odor molecules is currently uncertain. Here, we have investigated the response of a human olfactory receptor, OR1D2, to a broad array of odorants and found that there is no simple, direct correlation between a ...
Annika, Triller +6 more
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Enantioselectivity in Odor Perception
Helvetica Chimica Acta, 2004AbstractThe 3‐methyl‐4‐(tricyclo[5.2.1.02,6]dec‐4‐en‐8‐ylidene)butan‐2‐ols (=Fleursandol®; rac‐10), a new class of sandalwood odorants, were synthesized in their enantiomerically pure forms by use of tricyclo[5.2.1.02,6]dec‐4‐en‐8‐ones 17 and ent‐17 and (tetrahydro‐2H‐pyran‐2‐yl)‐protected 4‐bromo‐3‐methylbutan‐2‐ols 22 and ent‐22 as starting materials
Bernd Hölscher +5 more
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2012
Though olfaction is one of the necessary senses and indispensable for the maintenance of the life of the animal, the mechanism of olfaction had not yet been understood well compared with other sensory systems such as vision and audition. However, recently, the most basic principle of “signal transduction on the reception and transmission for the odor ...
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Though olfaction is one of the necessary senses and indispensable for the maintenance of the life of the animal, the mechanism of olfaction had not yet been understood well compared with other sensory systems such as vision and audition. However, recently, the most basic principle of “signal transduction on the reception and transmission for the odor ...
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On the similarity of odor and language perception
Neuroscience & Biobehavioral Reviews, 1999The association between olfaction and language is discussed. The effects of odor on human behavior and cognitive processing are reviewed as are electrophysiological studies of odor/language interactions. Also reviewed are specific effects of odor administration on language-dependent tasks.
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Optimum perception of odor intensity by humans
Physiology and Behavior, 1985The sniff duration that provides optimum perception of odor intensity was determined for 17 humans. Subjects were trained to match the duration of their sniff to the duration of a buzzer that sounded for 0.2, 0.5, 1.0 or 2.0 sec. Sniff characteristics were monitored with a hot wire anemometer and an oscilloscope.
D G Laing
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Trigeminal perception is necessary to localize odors
Physiology & Behavior, 2009The human ability to localize odorants has been examined in a number of studies, but the findings are contradictory. In the present study we investigated the human sensitivity and ability to localize hydrogen sulphide (H(2)S), which in low concentrations stimulates the olfactory system selectively, the olfactory-trigeminal substance isoamyl acetate ...
A M, Kleemann +9 more
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Journal of Occupational and Environmental Medicine, 2000
Patients with multiple chemical sensitivities (MCS) often report heightened sensitivity to odors. Odor detection thresholds to phenyl ethyl alcohol (PEA) and pyridine (PYR) were evaluated as a measure of odor sensitivity for 33 MCS subjects, 13 chronic fatigue syndrome subjects, 16 asthmatic subjects, and 27 healthy controls.
E, Caccappolo +6 more
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Patients with multiple chemical sensitivities (MCS) often report heightened sensitivity to odors. Odor detection thresholds to phenyl ethyl alcohol (PEA) and pyridine (PYR) were evaluated as a measure of odor sensitivity for 33 MCS subjects, 13 chronic fatigue syndrome subjects, 16 asthmatic subjects, and 27 healthy controls.
E, Caccappolo +6 more
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The influence of stimulus duration on odor perception
International Journal of Psychophysiology, 2006Although different parameters are known to alter the shape of olfactory event related potentials (ERP), ERP parameters are generally thought to be independent from stimulus duration. Evidence from recent studies investigating trigeminal ERP indicates that this may not be true.
Johannes, Frasnelli +2 more
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Odor-induced changes in taste perception
Experimental Brain Research, 2004We investigated odor-induced changes in taste perception (OICTP), by examining the influence of strawberry and soy sauce odors on perceived sweetness (Experiment 1) and saltiness (Experiment 2). We explored whether taste-smell interactions occur at the central level, by delivering odorants (strawberry, soy sauce, odorless water) and tastants (sucrose ...
J, Djordjevic +2 more
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