Human odor detectability: new methodology used to determine threshold and variation.

abstract：:Regarding the chemotaxis of sperms, new insights have been gained during the last 20 years. Olfactory receptors are expressed on the flagellar midpiece of human spermatogenic cells. One of them, OR1D2, is also expressed in the olfactory epithelium. This receptor has been suggested to play a role in sperm chemotaxis an...

journal_title：Chemical senses

authors： Sinding C,Kemper E,Spornraft-Ragaller P,Hummel T

更新日期：2013-06-01 00:00:00

abstract：:Nasal inhalation is the basis of olfactory perception and drives neural activity in olfactory and limbic brain regions. Therefore, our ability to investigate the neural underpinnings of olfaction and respiration can only be as good as our ability to characterize features of respiratory behavior. However, recordings of...

journal_title：Chemical senses

authors： Noto T,Zhou G,Schuele S,Templer J,Zelano C

更新日期：2018-09-22 00:00:00

abstract：:There is no natural physical continuum for odor quality along which an odor quality discrimination (OQD) threshold can be measured. In an attempt to overcome this problem, the substitution-reciprocity (SURE) method defines a framework for the measurement of an OQD threshold. More specifically, it (i) defines a thresho...

journal_title：Chemical senses

authors： Olsson MJ,Cain WS

更新日期：2000-10-01 00:00:00

abstract：:In social insects, recognition of nestmates from aliens is based on olfactory cues, and many studies have demonstrated that such cues are contained within the lipid layer covering the insect cuticle. These lipids are usually a complex mixture of tens of compounds in which aliphatic hydrocarbons are generally the major...

journal_title：Chemical senses

authors： Dani FR,Jones GR,Corsi S,Beard R,Pradella D,Turillazzi S

更新日期：2005-07-01 00:00:00

abstract：:Olfaction involves a dual sensory process for perceiving odors orthonasally (through the nostrils) and retronasally (through the mouth). This investigation entailed developing a measure of sensitivity to an odor delivered in an orally sampled food (orange flavoring in a sucrose-sweetened gelatin) and examining sensiti...

journal_title：Chemical senses

authors： Duffy VB,Cain WS,Ferris AM

更新日期：1999-12-01 00:00:00

abstract：:Olfactory receptor neurons (ORNs) in the antenna of insects serve to encode odors in action potential activity conducted to the olfactory lobe of the deuterocerebrum. We performed an analysis of the electrophysiological responses of olfactory neurons in the antennae of the female malaria mosquito Anopheles gambiae s.s...

journal_title：Chemical senses

authors： Qiu YT,van Loon JJ,Takken W,Meijerink J,Smid HM

更新日期：2006-11-01 00:00:00

abstract：:The effect of soluble starch (acid-modified starch) on taste intensity was investigated in human subjects. Different concentrations of sucrose (Suc), six sweeteners, NaCl, quinine-HCl (QHCl) and citric acid (Cit) were dissolved in either distilled water (DW; standard) or starch solution (test solution). The solutions ...

journal_title：Chemical senses

authors： Kanemaru N,Harada S,Kasahara Y

更新日期：2002-01-01 00:00:00

abstract：:The terminal nerve, which innervates the nasal epithelia of most jawed vertebrates, is believed to release neuropeptides that modulate activity of sensory receptor neurons. The terminal nerve usually contains gonadotropin-releasing hormone as well as at least one other peptide that has not been characterized, but whic...

journal_title：Chemical senses

authors： Park D,Zawacki SR,Eisthen HL

更新日期：2003-05-01 00:00:00

abstract：:We are proposing that the "relative" abundances of the differently tuned pheromone-component-responsive olfactory receptor neurons (ORNs) on insect antennae are not a result of natural selection working to maximize absolute sensitivity to individual pheromone components. Rather, relative abundances are a result of spe...

journal_title：Chemical senses

authors： Baker TC,Domingue MJ,Myrick AJ

更新日期：2012-05-01 00:00:00

abstract：:Olfactory perception is highly variable from one person to another, as a function of individual and contextual factors. Here, we investigated the influence of 2 important factors of variation: culture and semantic information. More specifically, we tested whether cultural-specific knowledge and presence versus absence...

journal_title：Chemical senses

authors： Ferdenzi C,Joussain P,Digard B,Luneau L,Djordjevic J,Bensafi M

更新日期：2017-01-01 00:00:00

abstract：:Olfactory disorders are believed to affect 5% of the general population and have been shown to bear significant psychosocial consequences to sufferers. Although more common than blindness and profound deafness in the United Kingdom, the impact of these disorders has not been assessed to date and the plight of British ...

journal_title：Chemical senses

authors： Philpott CM,Boak D

更新日期：2014-10-01 00:00:00

abstract：:The consumption protocol used during alcoholic beverage tasting may affect aroma perception. We used an integrated approach combining sensory analysis and physicochemistry to investigate the impact of swallowing on aroma release and perception. A panel of 10 persons evaluated the dynamics of aroma perception during th...

journal_title：Chemical senses

authors： Déléris I,Saint-Eve A,Guo Y,Lieben P,Cypriani ML,Jacquet N,Brunerie P,Souchon I

更新日期：2011-10-01 00:00:00

abstract：:In chum salmon captured at the coastal sea and the natal river, the magnitudes of the olfactory nerve responses to the amino acids after perfusion of the olfactory epithelium with artificial pond water (APW) were similar to those after perfusion with artificial sea water (ASW), although the concentrations of Na+, Cl- ...

journal_title：Chemical senses

authors： Shoji T,Fujita K,Ban M,Hiroi O,Ueda H,Kurihara K

更新日期：1994-12-01 00:00:00

abstract：:Genetic variation in oral sensation presumably influences ingestive behaviors through sensations arising from foods and beverages. Here, we investigated the influence of taste phenotype [6-n-propylthiouracil (PROP) bitterness, fungiform papillae (FP) density] on sweet and creamy sensations from sugar/fat mixtures. Sev...

journal_title：Chemical senses

authors： Hayes JE,Duffy VB

更新日期：2007-03-01 00:00:00

abstract：:Many studies have indicated that the chemical cues from body odors (BOs) of donors experiencing negative emotions can influence the psychophysiological and behavioral response of the observers. However, these olfactory cues have been used mainly as contextual information for processing visual stimuli. Here, for the fi...

journal_title：Chemical senses

authors： Ferreira J,Parma V,Alho L,Silva CF,Soares SC

更新日期：2018-05-23 00:00:00

abstract：:Emotion and odor scales (EOS) measuring odor-related affective feelings were recently developed for three different countries (Switzerland, United Kingdom, and Singapore). The first aim of this study was to investigate gender and cultural differences in verbal affective response to odors, measured with EOS and the usu...

journal_title：Chemical senses

authors： Ferdenzi C,Roberts SC,Schirmer A,Delplanque S,Cekic S,Porcherot C,Cayeux I,Sander D,Grandjean D

更新日期：2013-02-01 00:00:00

abstract：:Glucose is a universal phagostimulant in many animal species, including the cockroach Blattella germanica. However, some natural populations of B. germanica have been found that are behaviorally deterred from eating glucose. In dose-response studies, glucose was a powerful phagostimulant for wild-type cockroaches, but...

journal_title：Chemical senses

authors： Wada-Katsumata A,Silverman J,Schal C

更新日期：2011-09-01 00:00:00

abstract：:Detection thresholds for NaCl, KCl, sucrose, aspartame, acetic acid, citric acid, caffeine, quinine HCl, monosodium glutamate (MSG) and inosine 5'-monophosphate (IMP) were assessed in 21 young (19-33 years) and 21 elderly (60-75 years) persons by taking the average of six ascending two-alternative forced choice tests....

journal_title：Chemical senses

authors： Mojet J,Christ-Hazelhof E,Heidema J

更新日期：2001-09-01 00:00:00

abstract：:Phantosmia, the perception of an odor when there are no odorants in the environment, can be a very debilitating symptom. In the 1960s, Zilstorff reported olfactory distortions could be treated by the topical application of a cocaine solution to the olfactory epithelium. In evaluating this treatment, we observed no lon...

journal_title：Chemical senses

authors： Leopold DA,Hornung DE

更新日期：2013-11-01 00:00:00

abstract：:Cells, identified as supporting cells by Lucifer Yellow injection, were recorded from slices of frog olfactory epithelium using patch-clamp recordings. Cell-attached single-channel recordings indicated that the intracellular potential (IP) was -68 +/- 7 mV (n = 22) with 4 mM K+ in the bath ([K+]o). IP was -67 +/- 4 mV...

journal_title：Chemical senses

authors： Trotier D

更新日期：1998-06-01 00:00:00

abstract：:Insect olfactory receptors are heteromeric ligand-gated ion channels composed of at least one common subunit (Orco) and at least one subunit that confers odorant specificity. Little is known about how individual subunits contribute to the structure and function of the olfactory receptor complex. We expressed insect ol...

journal_title：Chemical senses

authors： Nichols AS,Chen S,Luetje CW

更新日期：2011-11-01 00:00:00

abstract：:Despite long and intense research, some fundamental questions regarding representation of taste information in the brain still remain unanswered. This might in part be due to shortcomings of the established methods that limit the researcher either to thorough characterization of few elements or to analyze the response...

journal_title：Chemical senses

authors： Töle J,Stolzenburg A,Tyree SM,Stähler F,Meyerhof W

更新日期：2018-04-23 00:00:00

abstract：:In this study, 40 Japanese, 44 German and 39 Mexican women were presented with 18 everyday odorants. They were asked to rate them for intensity on a six-point scale from not detectable to very strong, for pleasantness on an 11-point scale from -5, to neutral at 0, to +5, and for familiarity on a six-point scale from c...

journal_title：Chemical senses

authors： Distel H,Ayabe-Kanamura S,Martínez-Gómez M,Schicker I,Kobayakawa T,Saito S,Hudson R

更新日期：1999-04-01 00:00:00

abstract：:In recent years there have been a number of important advances in the understanding of cellular mechanisms related to olfactory function. Hypotheses regarding the complex relationships among odorant structure, physiological activity and behavioral outcome generated by these findings, however, remain largely untested d...

journal_title：Chemical senses

authors： Dorries KM,White J,Kauer JS

更新日期：1997-06-01 00:00:00

abstract：:Aiming to unravel interspecific differences in olfactory preferences, we performed comparative studies of odor valence in flies, mice, and humans. Our analysis suggests a model where flies and mice share similar olfactory preferences, but neither species share odor preferences with humans. This model contrasts with a ...

journal_title：Chemical senses

authors： Manoel D,Makhlouf M,Scialdone A,Saraiva LR

更新日期：2019-01-01 00:00:00

abstract：:In this issue of Chemical Senses, Münch et al. present a thorough analysis of how mixtures of odorants interact with olfactory receptors (ORs) borne by olfactory receptor neurons (ORNs). Using fruit fly ORNs expressing the receptor OR22a, they provide a clear example of mixture interaction and confirm that the respons...

journal_title：Chemical senses

authors： Rospars JP

更新日期：2013-05-01 00:00:00

abstract：:Anosmia affects the western world population, mostly the elderly, reaching to 5% in subjects over the age of 45 years and strongly lowering their quality of life. A smaller minority (about 0.01%) is born without a sense of smell, afflicted with congenital general anosmia (CGA). No causative genes for human CGA have be...

journal_title：Chemical senses

authors： Feldmesser E,Bercovich D,Avidan N,Halbertal S,Haim L,Gross-Isseroff R,Goshen S,Lancet D

更新日期：2007-01-01 00:00:00

abstract：:In order to assess the influence of odors on human performance and implicit memory for odors, 108 subjects completed a variety of tests in weakly scented (jasmine, lavender or odorless) rooms without having been made aware of the odor. After a 30 min interval the subjects were shown slides of different surroundings, i...

journal_title：Chemical senses

authors： Degel J,Köster EP

更新日期：1999-06-01 00:00:00

abstract：:Eating under distracted conditions such as viewing television is associated with overeating and weight gain. Following evidence from earlier findings, in this issue Hoffman-Hensel et al. report a study in which they investigated the influence of distraction on intensity perception of low and high caloric food odors an...

journal_title：Chemical senses

authors： Veldhuizen MG

更新日期：2017-10-31 00:00:00

abstract：:The vast number of detectable odors makes matching olfactory receptors (ORs) to their ligands a daunting task. Krautwurst and colleagues have hypothesized that this process can be simplified by focusing on those odorants that are perceptually relevant food odors. In this issue of Chemical Senses, they use this framewo...

journal_title：Chemical senses

authors： Trimmer C,Mainland JD

更新日期：2017-03-01 00:00:00