Cross-adaptation and bitterness inhibition of L-tryptophan, L-phenylalanine and urea: further support for shared peripheral physiology.

abstract：:Flavor and texture contribute to the perception of creaminess in dairy products, but the nature of this interaction is not well understood. Previous studies on the genetic ability to perceive the bitter compound 6-n-propylthiouracil (PROP) reveal the existence of individual differences in creaminess perception. The ob...

journal_title：Chemical senses

authors： Kirkmeyer SV,Tepper BJ

更新日期：2003-07-01 00:00:00

abstract：:Natural odors occur as turbulent plumes resulting in spatially and temporally variable odor signals at the chemoreceptor cells. Concentrations can fluctuate widely within discrete packets of odor and individual packets are very intermittent and unpredictable. Chemoreceptor cells display the temporally dynamic properti...

journal_title：Chemical senses

authors： Moore PA

更新日期：1994-02-01 00:00:00

abstract：:Differences between elderly subjects (n = 46, 61-86 years) and young subjects (n = 36, 18-25 years) in food perception and food liking were investigated. Intensity and liking ratings were assessed for custard dessert, in which flavor enrichment, textural change, and irritant addition were incorporated as strategies to...

journal_title：Chemical senses

authors： Kremer S,Bult JH,Mojet J,Kroeze JH

更新日期：2007-07-01 00:00:00

abstract：:Insect odorant receptors (ORs) function as heteromeric odorant-gated ion channels consisting of a conserved coreceptor, Orco, and an odorant-sensitive tuning subunit. Although some OR modulators have been identified, an extended library of pharmacological tools is currently lacking and would aid in furthering our unde...

journal_title：Chemical senses

authors： Pask GM,Bobkov YV,Corey EA,Ache BW,Zwiebel LJ

更新日期：2013-03-01 00:00:00

abstract：:Anosmia and hyposmia, the inability or decreased ability to smell, is estimated to afflict 3-20% of the population. Risk of olfactory dysfunction increases with old age and may also result from chronic sinonasal diseases, severe head trauma, and upper respiratory infections, or neurodegenerative diseases. These disord...

journal_title：Chemical senses

authors： Boesveldt S,Postma EM,Boak D,Welge-Luessen A,Schöpf V,Mainland JD,Martens J,Ngai J,Duffy VB

更新日期：2017-09-01 00:00:00

abstract：:We report 2 experiments designed to investigate the effect of people's prior beliefs concerning specific color-flavor associations on their ability to discriminate the flavor of colored sugar-coated chocolate sweets. The participants in our study judged whether pairs of Smarties had the same flavor or not. In our firs...

journal_title：Chemical senses

authors： Levitan CA,Zampini M,Li R,Spence C

更新日期：2008-06-01 00:00:00

abstract：:Contrary to what has often been said about the subject, decline in taste sensitivity with aging characterizes virtually everybody and is not the artificial result of averaging large losses of a minority with negligible losses of a majority. This assertion is supported by six repeated measures of sucrose thresholds in ...

journal_title：Chemical senses

authors： Stevens JC,Cruz LA,Hoffman JM,Patterson MQ

更新日期：1995-08-01 00:00:00

abstract：:Individual recognition has been studied across a number of taxa and modalities; however, few attempts have been made to combine chemical and biological approaches and arrive at a more complete understanding of the use of secretions as signals. We combined behavioral habituation experiments with gas chromatography-mass...

journal_title：Chemical senses

authors： Liu D,Huang KJ,Zhang JX

更新日期：2011-11-01 00:00:00

abstract：:Glomeruli, neuropilar structures composed of olfactory receptor neuron (ORN) axon terminals and central neuron dendrites, are a common feature of olfactory systems. Typically, ORN axons segregate into glomeruli based on odor specificity, making glomeruli the basic unit for initial processing of odorant information. De...

journal_title：Chemical senses

authors： Lipscomb BW,Tolbert LP

更新日期：2006-03-01 00:00:00

abstract：:Analysis of single fibers isolated from a branch of the facial/trigeminal complex innervating the maxillary barbel of the channel catfish, Ictalurus punctatus, indicated the existence of bimodal (taste/tactile) fibers. Of the 60 single fibers recorded, 14 (23%) responded to both taste (amino acid) and tactile stimulat...

journal_title：Chemical senses

authors： Ogawa K,Marui T,Caprio J

更新日期：1997-08-01 00:00:00

abstract：:Our olfactory sense plays an important role in eating behavior by modulating our food preferences and intake. However, hunger or satiety may also influence how we perceive odors. Albeit speculative, contradictory results found in the past may have resulted from confounding by type of meal that participants ate to indu...

journal_title：Chemical senses

authors： Ramaekers MG,Verhoef A,Gort G,Luning PA,Boesveldt S

更新日期：2016-02-01 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：:The importance of stimulus timing and location on the perceptual integration of taste and odour was studied based on a sub-threshold methodology. From a panel of 16 people, 12 showed the integration effect previously reported while 4 showed no effect. The experiment was repeated using retronasal and orthonasal deliver...

journal_title：Chemical senses

authors： Pfeiffer JC,Hollowood TA,Hort J,Taylor AJ

更新日期：2005-09-01 00:00:00

abstract：:Pheromone-sensitive sensilla trichodea of nine moth species belonging to six families and three superfamilies of Lepidoptera were immunolabelled with an antiserum against the pheromone-binding protein of Antheraea polyphemus. Strong immunolabelling of the sensillum lymph was observed in all long sensilla trichodea of ...

journal_title：Chemical senses

authors： Steinbrecht RA

更新日期：1996-12-01 00:00:00

abstract：:Presynaptic inhibition is the suppression of neurotransmitter release from a neuron by inhibitory input onto its presynaptic terminal. In the olfactory system, the primary sensory afferents from the olfactory neuroepithelium to the brain's olfactory bulb are strongly modulated by a presynaptic inhibition that has been...

journal_title：Chemical senses

authors： McGann JP

更新日期：2013-07-01 00:00:00

abstract：:This study determined taste thresholds for copper as its speciation was varied among free cupric ion, complexed cupric ion, and precipitated cupric particles. The impact of copper chemistry on taste is important as copper is added to many beverages and can be present in drinking water as a natural mineral or due to co...

journal_title：Chemical senses

authors： Cuppett JD,Duncan SE,Dietrich AM

更新日期：2006-09-01 00:00:00

abstract：:Two experiments examined time/concentration trading for the detection of carbon dioxide, an irritant with little or no odor. Experiment 1 employed the nasal lateralization method: subjects attempted to determine which nostril received carbon dioxide and which received pure air when presented simultaneously. Experiment...

journal_title：Chemical senses

authors： Wise PM,Radil T,Wysocki CJ

更新日期：2004-02-01 00:00:00

abstract：:Phagocytic cells in the taste buds of rat circumvallate papillae after the sectioning of bilateral glossopharyngeal nerves were examined by electron microscopy and immunohistochemistry. Electron micrographs taken 1 day after denervation revealed that flat-shaped cells were present just beneath the taste buds and that ...

journal_title：Chemical senses

authors： Suzuki Y,Takeda M,Obara N,Nagai Y

更新日期：1996-08-01 00:00:00

abstract：:The stimuli used in taste research are usually considered to be odourless. This was tested in two experiments with aqueous solutions of two representative compounds for each of the five taste qualities including umami. In the first experiment elderly and young subjects rated the intensity and pleasantness of three con...

journal_title：Chemical senses

authors： Mojet J,Köster EP,Prinz JF

更新日期：2005-01-01 00:00:00

abstract：:Since starch is a significant part of human diet, its oral detection would be highly beneficial. This study was designed to determine whether starch or its degradation products can be tasted and what factors influence its perception. Subjects were asked 1) to taste 8% raw and cooked starch samples for 5, 15, and 35 s ...

journal_title：Chemical senses

authors： Lapis TJ,Penner MH,Balto AS,Lim J

更新日期：2017-10-01 00:00:00

abstract：:In 20 normal and four anosmic participants, instantaneous inhalation and exhalation flow rates were recorded in response to 15 s stimulations with clean air or propionic acid concentrations (0.16, 1.14, 8.22 and 59.15 p.p.m., v/v) that ranged from peri-threshold for normals to clearly supra-threshold for anosmics. Eac...

journal_title：Chemical senses

authors： Walker JC,Kendal-Reed M,Hall SB,Morgan WT,Polyakov VV,Lutz RW

更新日期：2001-05-01 00:00:00

abstract：:Ability to perceive the bitter compound phenylthiocarbamide (PTC) is inherited via a dominant "taster" allele of the TAS2R38 gene, whereas inability is inherited via a recessive "non-taster" allele. This raises a question: Is the non-taster allele functionless, or does it mediate perception of compounds other than PTC...

journal_title：Chemical senses

authors： Wooding SP

更新日期：2018-08-24 00:00:00

abstract：:Adaptation techniques have traditionally been employed in sensory physiology and psychology to characterize afferent pathways and to dissect the quantitative and, to a lesser degree, the qualitative aspects of perception. We continue to explore the individual differences in olfactory capabilities among subjects initia...

journal_title：Chemical senses

authors： O'Connell RJ,Stevens DA,Zogby LM

更新日期：1994-06-01 00:00:00

abstract：:In order to explore the cross-modal cognitive associations between smell and taste, a chemosensory analogue of the Stroop task (Stroop 1935) was developed. Fourteen participants were presented with an odorant and a tastant and asked to identify the tastant as "sweet" or "sour" by pressing 1 of 2 buttons as quickly as ...

journal_title：Chemical senses

authors： White TL,Prescott J

更新日期：2007-05-01 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：:Since the discovery of adult neurogenesis, a major issue is the role of newborn neurons and the function-dependent regulation of adult neurogenesis. We decided to use an animal model with a relatively simple brain to address these questions. In the adult cricket brain as in mammals, new neurons are produced throughout...

journal_title：Chemical senses

authors： Cayre M,Scotto-Lomassese S,Malaterre J,Strambi C,Strambi A

更新日期：2007-05-01 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：:We previously reported that stressed male Wistar rats released alarm pheromone from the perianal region, which aggravated stress-induced hyperthermia and increased Fos expression in the mitral/tufted cell layer of the accessory olfactory bulb in recipient rats. In this study, we attempted to obtain this pheromone in w...

journal_title：Chemical senses

authors： Kiyokawa Y,Kikusui T,Takeuchi Y,Mori Y

更新日期：2005-07-01 00:00:00

abstract：:When the glossopharyngeal (GP) nerve of the frog was stimulated electrically, electropositive slow potentials were recorded from the tongue surface and depolarizing slow potentials from taste cells in the fungiform papillae. The amplitude of the slow potentials was stimulus strength- and the frequency-dependent. Gener...

journal_title：Chemical senses

authors： Sato T,Toda K,Miyamoto T,Okada Y,Fujiyama R

更新日期：2000-10-01 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