Abstracts - Association for Chemoreception Sciences

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#P207 POSTER SESSION IV: CHEMICAL SIGNALING AND BEHAVIOR; ANIMAL BEHAVIOR/PSYCHOPHYSICS; CHEMOSENSATION AND METABOLISM; VOMERONSASAL AND CHEMICAL COMMUNICATION #P208 POSTER SESSION IV: CHEMICAL SIGNALING AND BEHAVIOR; ANIMAL BEHAVIOR/PSYCHOPHYSICS; CHEMOSENSATION AND METABOLISM; VOMERONSASAL AND CHEMICAL COMMUNICATION A Role for Salivary Proteins in Taste Mediated Behavior Ann-Marie Torregrossa, Michelle B. Bales, Robert J. Contreras, James C. Smith , Lisa A. Eckel Dept. of Psychology, Florida State University Tallahassee, FL, USA While few studies have examined the influence of salivary proteins on taste-mediated behavior, it has been demonstrated that salivary proline-rich proteins (PRPs) bind to bitter-tasting tannic acid (TA) and may function to increase the acceptability of TA-containing diets. To test this hypothesis, we collected saliva samples and measured spontaneous feeding behavior in rats (n=8) fed a control diet (16 days) followed by a diet containing 3% TA (12 days). Total intake was reduced during the first 3 days of the TA diet (p
F344 rats on a two-odor discrimination task. Six odorants (1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 1-heptanol and 1-octanol) were arranged to produce 30 novel odorant pairs differing between one and five carbon atoms; testing sessions included presentation of only one randomly assigned pair daily (200 trials daily). Results showed that, although rats learned to discriminate between any two odorant pairs, discrimination accuracy changed systematically with carbon chain length difference. Error patterns were remarkably consistent across animals, such that marked increases in misses and false alarms were indicated for pairs differing by one or two carbon atoms. Across all odorant pairs, these effects were most pronounced during the first 20 trials. Notably, the greatest degree of perceptual confusion was displayed for two pairs differing by a single carbon atom, 1-propanol/1-butanol and 1-heptanol/1- hexanol. These data provide further support for carbon chain length as an important odorant stimulus dimension for study of olfactory receptor interaction (Johnson and Leon, 2000) as well as demonstrate how hierarchical chemotopic organization of the olfactory bulb may be reflected perceptually. Furthermore, development of an animal model using the carbon chain paradigm may be useful for assessing the mechanisms underlying olfactory dysfunction. #P210 POSTER SESSION IV: CHEMICAL SIGNALING AND BEHAVIOR; ANIMAL BEHAVIOR/PSYCHOPHYSICS; CHEMOSENSATION AND METABOLISM; VOMERONSASAL AND CHEMICAL COMMUNICATION The Gustatory Stop-Signal Task: A Method for Measuring Taste Quality Discrimination in Mice with Millisecond Temporal Resolution Dustin M Graham, David L Hill UVA/Psychology Charlottesville, VA, USA There is a lack of consensus regarding the roles of temporal and spatial coding of taste quality in the gustatory system due in part to various experimental and analytical differences among previous studies. Quantitative behavioral analysis can be used to test for the cognitive principle of speed-accuracy tradeoff (SAT), a hallmark of temporal processing of sensory stimuli. However, current methods used to study taste perception in rodents are temporally too slow for precise reaction-time measurements required to test for SAT in the gustatory system. We designed a novel behavioral paradigm, the Gustatory Stop- Signal Task, in head-restrained mice for measuring perceptual identification of taste stimuli with millisecond temporal resolution. Using this new paradigm, we will apply threshold psychophysics to determine if a stimulus-dependent SAT is present during discrimination of basic tastes. This will provide crucial behavioral evidence for the potential roles of temporal and spatial coding strategies underlying taste quality coding in the gustatory system. Additionally, the task can be combined with advanced physiological techniques, such as visually guided whole-cell patch-clamp recordings in sub-regions of gustatory cortex. The gustatory stop-signal task in head-restrained mice will provide a new foundation to combine precise quantitative behavioral measurements of taste perception alongside state-ofthe-art in vivo physiology. Acknowledgements: NIH Grants R01 DC00407 and F32 DC012461 - 01A1 #P211 POSTER SESSION IV: CHEMICAL SIGNALING AND BEHAVIOR; ANIMAL BEHAVIOR/PSYCHOPHYSICS; CHEMOSENSATION AND METABOLISM; VOMERONSASAL AND CHEMICAL COMMUNICATION Free Access to Highly Palatable Food during Adolescence Increases Anxiety- and Depression-like Behaviors in Males, but not in Females Jeong-Won Jahng, Jin-Young Kim, Joo-Young Lee, Jong-Ho Lee Seoul National University School of Dentistry Seoul, South Korea We have reported that a long-term access to highly palatable food (HPF) modulates the hypothalamic-pituitary-adrenal (HPA) axis response to restraint stress in adult male rats. Psycho-emotional disorders frequently involve dysfunctions in the HPA axis activity. In this study, male and female SD rats had free choices of chocolate cookies as HPF and chow with ad libitum access from PND 28, and then were subjected to behavioral tests at youth. Control group received chow only, and food conditions were continued throughout the whole experimental period. Body weight gain and daily caloric intake did not differ between HPF and control groups both in males and females. Total ambulatory activity was decreased with HPF access in females, but not in males. However, HPF increased anxiety related behaviors in males; i.e. increased rostral grooming and decreased the open arms stay during elevated plus maze test, but did not affect those indexes in females. Immobility duration during forced swim test was significantly increased with HPF access in males, but the increase was not reached to a statistical significance in females. Stress-induced corticosterone increase was shortened with HPF access both in males and females. Results suggest that adolescence free access to highly palatable food may lead to a dysfunction in the HPA axis activity both in males and females; however, its psycho-emotional outcome be worse in males. Acknowledgements: Supported by MOEST(2009K001269 2010- 0003642) POSTER PRESENTATIONS Abstracts are printed as submitted by the author(s). 111
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AChemS Association for Chemorecepti
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Table of Contents 2013 AChemS Meeti
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2013 Annual Meeting Exhibitors EXHI
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2013 Awardees We are pleased to ann
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Oral Abstracts #1 GIVAUDAN LECTURE:
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#9 INDUSTRY SYMPOSIUM: TASTE AND SM
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#17 PLATFORM PRESENTATIONS: OLFACTI
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maintenance; demonstrate a contribu
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self renew, as well as produce post
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#35 SYMPOSIUM: NEW APPROACHES TO PH
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auditory cues anticipating the gene
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#46 PLATFORM PRESENTATIONS: TASTE P
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#51 SYMPOSIUM: EXPERIENCE DRIVEN PL
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#57 SYMPOSIUM: THE NEW ‘FACES’
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Poster Presentations #P1 POSTER SES
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For patients not involved in litiga
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show increased high-fat food avidit
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suggest that latency of the N1 OERP
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#P23 POSTER SESSION I: MULTIMODAL R
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and/or bitter taste are expressed n
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the mOR-EG receptor and MUPP1 and i
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odor responses. Recently, transient
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women; mean age 23.4 years; range 2
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#P61 POSTER SESSION II: OLFACTION D
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axons into the olfactory bulb where
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Page 64 and 65: via iontophoretic injection in the
Page 66 and 67: pharmacological inhibition of synap
Page 68 and 69: #P102 POSTER SESSION II: OLFACTION
Page 74 and 75: #P118 POSTER SESSION III: TRIGEMINA
Page 76 and 77: nerve fibers. Nasal SCCs respond to
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Page 80 and 81: work was also partly supported by T
Page 82 and 83: 3.3 mm) placed at the olfactory cle
Page 84 and 85: #P145 POSTER SESSION III: TRIGEMINA
Page 86 and 87: taste qualities mice can identify i
Page 88 and 89: These results indicate that IL-1b r
Page 90 and 91: The purified protein was characteri
Page 92 and 93: #P167 POSTER SESSION IV: CHEMICAL S
Page 94 and 95: glutamate and monopotassium glutama
Page 96 and 97: from postoral sites are integrated
Page 102 and 103: is predominant in Asians. The G180R
Page 104 and 105: conserved regions of the AOB. Here
Page 114 and 115: early postnatal period. This shift
Page 116 and 117: #P222 POSTER SESSION V: HUMAN TASTE
Page 120 and 121: ut this was always the first trial.
Page 124 and 125: The taste test intraclass correlati
Page 128 and 129: epressive sequence contains binding
Page 130 and 131: Author Index Abdelhamid, Mostafa -
Page 132 and 133: Author Index, continued Dillon, T S
Page 134 and 135: Author Index, continued Karunanayak
Page 136 and 137: Author Index, continued Müller, Ch
Page 138 and 139: Author Index, continued Storace, Do
Page 140 and 141: Visual Program-at-a-Glance Posters
Page 142 and 143: A NNUAL AChemS Association for Chem
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Abstracts - Association for Chemoreception Sciences

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