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Topic: Olfaction

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  Olfaction - SourceryForge
Olfaction, the sense of smell, is the detection of chemicals dissolved in air (or, by animals that breathe water, in water).
As an exception among birds, olfaction is important in the tubenoses.
In many species olfaction is highly tuned to pheromones; a male silkworm moth, for example, can smell a single molecule of bombykol.
sourceryforge.org /w/Olfaction   (896 words)

 Olfaction - Wikipedia, the free encyclopedia
Olfaction (the sense of smell) is the detection of chemicals dissolved in air.
Olfaction is one of the five senses originally described by Aristotle.
In many species, olfaction is highly tuned to pheromones; a male silkworm moth, for example, can sense a single molecule of bombykol.
en.wikipedia.org /wiki/Olfaction   (1574 words)

 Olfaction and the Brain - Cambridge University Press
Olfaction and its relation to mental health is an area of growing interest, evidenced by the 2004 Nobel Prize in Physiology or Medicine being awarded for discoveries relating to odorant receptors and the organization of the olfactory system.
Olfaction is of particular interest to specialists seeking a fuller understanding of schizophrenia.
Olfaction and the temporal lobes Jelena Djordjevic and Marilyn Jones-Gotman; 3.
www.cambridge.org /catalogue/catalogue.asp?isbn=0521849225   (479 words)

 olfaction scientific topics
Olfaction peculiarity lies in the necessity for the sensory cell to select the appropriate odorant (or pheromone), sometimes in very low abundance, among a complex mixture of molecules.
Odorant detection is performed by sensory neurons in the olfactory epithelium located in the upper part of the nasal cavity, directly connected with the brain olfactory bulbs.
These molecular events are involved in the first step of olfactory sensing, upstream the biochemical cascade that provokes the nervous influx, which results in a conscious recognition (odor) associated with the odorant.
www.jouy.inra.fr /unites/nopa/bog/probscgb/olfacgb   (223 words)

 Olfaction and Memory
Olfaction is the sensory modality that is physically closest to the limbic system, of which the hippocampus and amygdala are a part, and which is responsible for emotions and memory.
For example, storage and decay processes, characteristics of memory processes, are not yet understood with respect to olfaction (1996).
Olfaction therefore plays a part in an integrated system for recovering caches and finding hidden food.
www.macalester.edu /psychology/whathap/UBNRP/Smell/memory.html   (763 words)

Also found in the nasal mucosa is a pigmented-type of epithelial cell: the depth of colour is often correlated with olfactory sensitivity, being light yellow in humans and dark yellow or brown in dogs.
One possible explanation is that because olfactory centres (primary olfactory cortex, entorhinal cortex) are next door to regions where seizures begin in temporal lobe epilepsy, activity generated in these areas by the presentation of a smell prevents the spread of the synchronous activity from the epileptic focus.
Davies, J.T. and Taylor, F.H. The role of adsorption and molecular morphology in olfaction: the calculation of olfactory thresholds.
www.cf.ac.uk /biosi/staff/jacob/teaching/sensory/olfact1.html   (8643 words)

 Olfaction in Courtship
If no differences in behavior occurred, we could conclude either that female olfaction is not essential for normal courtship behavior or that other chemoreceptors compensate for the loss of olfaction.
This indicates that male olfaction is not necessary for the normal sequence of lobster courtship behavior.
The absence of male-male agonistic encounters suggests that male olfaction is involved in male dominance.
www.lobstermanspage.net /lobstrs/articles/olfact.html   (3759 words)

 eMedicine - Anatomy of Olfactory System : Article by Amir Vokshoor, MD   (Site not responding. Last check: 2007-10-20)
Olfaction is less developed in humans than in other mammals such as rodents.
The thalamic connections are thought to serve as a conscious mechanism for odor perception, while the amygdala and the entorhinal area are limbic system components and may be involved in the affective components of olfaction.
Investigations of regional cerebral blood flow have demonstrated a significant increase in the amygdaloid nucleus with the introduction of a highly aversive odorant stimulus, and this has been associated with subjective perceived aversiveness.
www.emedicine.com /ent/topic564.htm   (2089 words)

 Amazon.com: Olfaction and Taste XI: Proceedings of the 11th International Symposium on Olfaction and Taste and of the ...   (Site not responding. Last check: 2007-10-20)
Amazon.com: Olfaction and Taste XI: Proceedings of the 11th International Symposium on Olfaction and Taste and of the 27th Japanese Symposium on Taste and Smell (International...
Olfaction and Taste XI: Proceedings of the 11th International Symposium on Olfaction and Taste and of the 27th Japanese Symposium on Taste and Smell (International...
Proceedings of the 11th International Symposium on Olfaction and Taste and the 27th Japanese Symposium on Taste and Smell, joint meeting held at Kosei-Nenkin Kaikan, Sapporo, Japan, July 12-16, 1993.
www.amazon.com /Olfaction-Taste-Proceedings-International-Symposium/dp/0387701427   (557 words)

 Avian Olfaction
Bang's research sparked a wave of olfaction research that has broadened the horizons of the understanding of how birds smell.
While much progress has been made in the last few decades in the study of avian olfaction, there is still much more to find out.
Olfaction in species with less developed olfactory neuroanatomy, homing, migration, potential odorants, and the role of pheromones are but a few areas that would benefit from further research.
instruct1.cit.cornell.edu /courses/psych396/student2002/hcs7   (622 words)

 Olfaction - A Review
Smell (or Olfaction) allows vertebrates and other organisms with olfactory receptors to identify food, mates, predators, and provides both sensual pleasure (the odor of flowers and perfume) as well as warnings of danger (e.g., spoiled food, chemical dangers).
This paper will explore the current status our understanding of olfaction and provide in some detail the possible molecular interactions that specify odorant signaling.
Odorants are volatile chemical compounds that are carried by inhaled air to the Regio olfactoria (olfactory epithelium) located in the roof of the two nasal cavities of the human nose, just below and between the eyes.
www.leffingwell.com /olfaction.htm   (819 words)

 Berkeley Olfactory Research Project
Zelano, C.M., Sobel, N. Humans as an animal model for systems-level organization of olfaction.
Sobel, N., Johnson, B.N., Mainland, J.D., & Yousem, D. "Functional imaging of olfaction." The Handbook of Gustation and Olfaction.
Bensafi, M., Zelano, C., Johnson, B.N., Khan, R.M., & Sobel, N. "Olfaction: from sniff to percept." The Cognitive Neurosciences.
ist-socrates.berkeley.edu /~borp/publications1.htm   (611 words)

 olfaction - OneLook Dictionary Search
Olfaction : Online Plain Text English Dictionary [home, info]
Olfaction : Glossary of Unusual Sexual Practices [home, info]
Words similar to olfaction: smell, olfactory modality, sense of smell, more...
www.onelook.com /?w=olfaction   (208 words)

 Olfaction Tutorial
However, the detection and processing of odor by the body is not well understood.
Despite the importance of olfaction (sense of smell) to our daily lives, the chemical aspect to olfaction was not given much attention by the scientific community until the 1980's.
There is a variety of theories proposed to explain olfaction, but there is no general agreement.
www.chemistry.wustl.edu /~edudev/Smell/smell.html   (929 words)

 Olfaction definition - Medical Dictionary definitions of popular medical terms
Olfaction definition - Medical Dictionary definitions of popular medical terms
Olfaction: The sense of smell, part of the chemical sensing system, or the chemosenses.
Sensory cells in the nose, mouth, and throat have a role in helping interpret smells and taste flavors.
www.medterms.com /script/main/art.asp?articlekey=4624   (346 words)

 The Vivid World of Odors
In A Natural History of the Senses, poet Diane Ackerman notes that it is almost impossible to explain how something smells to someone who hasn't smelled it.
Nor can odors be measured on the kind of linear scale that scientists use to measure the wavelength of light or the frequency of sounds.
"It would be nice if one smell corresponded to a short wavelength and another to a long wavelength, such as rose versus skunk, and you could place every smell on this linear scale," says Randall Reed, an HHMI investigator at the Johns Hopkins University School of Medicine who has long been interested in olfaction.
www.hhmi.org /senses/d110.html   (1006 words)

 olfRecog Olfactory Recognition Mind-Module for Robot Artificial Intelligence
Summon the JavaScript Seed AI for MS IE 5 into your presence with
Screen # 15 ram:robot -------------------------------- 0 \ OLFACTION stub routine 980505atm 1 \ This area of Mind.forth (or of Mind.xyz) is reserved for 2 \ roboticists who have access to the "sniffing" machines used 3 \ in such industries as wine and cheese-making.
Try in advance not to introduce any evolutionary bugs.
mind.sourceforge.net /olfrecog.html   (414 words)

 Arch Otolaryngol Head Neck Surg -- Abstract: Screening and Rehabilitation of Olfaction After Total Laryngectomy in ...
Arch Otolaryngol Head Neck Surg -- Abstract: Screening and Rehabilitation of Olfaction After Total Laryngectomy in Swedish Patients: Results From an Intervention Study Using the Nasal Airflow-Inducing Maneuver, March 2006, Risberg-Berlin et al.
Screening and Rehabilitation of Olfaction After Total Laryngectomy in Swedish Patients
test for the assessment of olfaction acuity after laryngectomy.
archotol.ama-assn.org /cgi/content/abstract/132/3/301   (270 words)

 Olfaction   (Site not responding. Last check: 2007-10-20)
The senses of olfaction (smell) and taste are very closely associated.
The receptors of both senses are chemoreceptors and, thus, are able to detect the presence of a chemical once the chemical has gone into solution in the liquid coating of the receptors' cell membranes.
For more information about Scientia, contact us at info@scientia.org.
www.scientia.org /cadonline/Biology/nervous/olfaction.ASP   (360 words)

 The KLI Theory Lab - keywords - olfaction
The KLI Theory Lab - keywords - olfaction
/Csányi, V. The influence of olfaction on exploratory behaviour in the paradise fish (Macropodus opercularis L. Acta Biologica Hungarica 40(3): 195—202.
Keywords: ethology • exploratory behavior • olfaction • paradise fish.
www.kli.ac.at /theorylab/Keyword/O/olfaction.html   (62 words)

 Insect Olfaction Papers
Overview of olfaction in insects: perspectives from Moths (Hansson) and flies (Vosshall)
PDF Hansson BS (2002) A bug's smell - research into insect olfaction.
PDF Vosshall LB, Keller A (2003) Decoding olfaction in Drosophila.
www.biol.sc.edu /~vogt/pdf/olf/olf-read-list.html   (1991 words)

 Molecular Basis of Olfaction   (Site not responding. Last check: 2007-10-20)
You are fascinated by the topic of olfaction.
You have done research into the topic and have learned that a family of possible odorant receptors have been discovered.
How would you manipulate the receptor to solve this problem?
www.gg.caltech.edu /~jibarry/Yess/yess99/Biology/Olfaction.html   (271 words)

 Neuroscience for Kids - Smell Experi.
We can recognized a wide variety of smells.
To demonstrate the sense of smell (olfaction), collect several items that have distinctive smells such as:
Complete lesson plan on olfaction with Teacher Resource, Teacher Guide and Student Guide.
faculty.washington.edu /chudler/chsmell.html   (866 words)

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