Navigation Links
Swarming insect provides clues to how the brain processes smells
Date:11/25/2013

Our sense of smell is often the first response to environmental stimuli. Odors trigger neurons in the brain that alert us to take action. However, there is often more than one odor in the environment, such as in coffee shops or grocery stores. How does our brain process multiple odors received simultaneously?

Barani Raman, PhD, of the School of Engineering & Applied Science at Washington University in St. Louis, set out to find an answer. Using locusts, which have a relatively simple sensory system ideal for studying brain activity, he found the odors prompted neural activity in the brain that allowed the locust to correctly identify the stimulus, even with other odors present.

The results were published in Nature Neuroscience as the cover story of the December 2013 print issue.

The team uses a computer-controlled pneumatic pump to administer an odor puff to the locust, which has olfactory receptor neurons in its antennae, similar to sensory neurons in our nose. A few seconds after the odor puff is given, the locust gets a piece of grass as a reward, as a form of Pavlovian conditioning. As with Pavlov's dog, which salivated when it heard a bell ring, trained locusts anticipate the reward when the odor used for training is delivered.

Instead of salivating, they open their palps, or finger-like projections close to the mouthparts, when they predict the reward. Their response was less than half of a second. The locusts could recognize the trained odors even when another odor meant to distract them was introduced prior to the target cue.

"We were expecting this result, but the speed with which it was done was surprising," says Raman, assistant professor of biomedical engineering. "It took only a few hundred milliseconds for the locust's brain to begin tracking a novel odor introduced in its surrounding. The locusts are processing chemical cues in an extremely rapid fashion."

"There were some interesti
'/>"/>

Contact: Neil Schoenherr
nschoenherr@wustl.edu
314-935-5235
Washington University in St. Louis
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Crabs, insects and spiders vulnerable to oil spill, but also resilient
2. Entomology 2012 to present 105 insect symposia in November
3. A bit touchy: Plants insect defenses activated by touch
4. UCSB study shows forest insects and diseases arrive in US via imported plants
5. Unique adaptations to a symbiotic lifestyle reveal novel targets for aphid insecticides
6. Jurassic pain: Giant flea-like insects plagued dinosaurs 165 million years ago
7. Insect glands may illuminate human fertilization process
8. Protein signal is crucial for accurate control of insect size
9. Insect scientists to meet in Lincoln, Neb., in June
10. New rearing system may aid sterile insect technique against mosquitoes
11. NHM entomologist wins grant to investigate mega-diverse insect order
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Swarming insect provides clues to how the brain processes smells
(Date:6/15/2015)... -- A new report [ 1 ... US consumers using mobile banking applications want their mobile devices ... voiceprint, instead of having to prove who they are with ... Identity   -   The Fusion of Financial Services, Mobile ... primary channel used by Gen X and Gen Y to ...
(Date:6/11/2015)... , June 11, 2015 Daon, ... announced today that its IdentityX Mobile Authentication Platform ... IDentity Online) Alliance is an industry consortium launched ... standards for simpler, stronger authentication.  In order to ... pass a rigorous series of tests that measure ...
(Date:6/9/2015)... , June 09, 2015 Research ... addition of the "Gesture Recognition & Touchless ... (Consumer Electronics, Automotive, & Others), Product (Biometric & ... to 2020" report to their offering. ... market is expected to reach $ 23.55 Billion ...
Breaking Biology News(10 mins):One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 3One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 4Daon's IdentityX Mobile Authentication Platform One of First Products to be Certified by FIDO Alliance 2Global Gesture Recognition & Touchless Sensing (Technology, Application & Products) Market 2015-2020 2
... , Oct. 21, 2013   Arcturus Therapeutics, Inc. , an industry ... today announced it has secured $5 million in a Series A ... Canada , Japan and ... http://photos.prnewswire.com/prnh/20130531/MM24393LOGO ) The Series A funding, which comprised ...
... MA In a biological quirk that promises to ... potentially treating Fragile X syndrome, scientists at the University ... out a gene important for messenger RNA (mRNA) translation ... in a mouse model of a prevalent human neurological ...
... Jude Children,s Research Hospital scientists has linked an inherited ... developing a pediatric acute lymphoblastic leukemia (ALL) subtype that ... today in the online edition of the scientific journal ... found in the GATA3 gene. Researchers reported the high-risk ...
Cached Biology News:Arcturus Therapeutics Raises $5 Million in Series A Funding to Maintain its Momentum in Nominating Lead Clinical Candidate in 2014 2Arcturus Therapeutics Raises $5 Million in Series A Funding to Maintain its Momentum in Nominating Lead Clinical Candidate in 2014 32 genetic wrongs make a biochemical right 22 genetic wrongs make a biochemical right 32 genetic wrongs make a biochemical right 4Inherited gene variation tied to high-risk pediatric leukemia and greater risk of relapse 2Inherited gene variation tied to high-risk pediatric leukemia and greater risk of relapse 3
(Date:7/1/2015)... July 1, 2015  Axovant Sciences Ltd. (NYSE: ... the treatment of dementia, today announced that the ... 22 at 5:45 p.m. EDT following its presentation ... International Conference 2015 (AAIC). The ... , Dr. Lawrence Friedhoff , Chief Development ...
(Date:7/1/2015)... Indianapolis, IN (PRWEB) , ... July 01, 2015 , ... ... the 2015 BIO International Convention in Philadelphia, PA. , The presentation took ... milestones and outlined the plans for the development of APX3330 for the treatment of ...
(Date:6/30/2015)... ... June 30, 2015 , ... Students and faculty from Beijing ... half of “Integrative Biotechnology,” an applied biotechnology course team-taught by faculty members from ... combines students from both universities and is taught on both continents. , “Our ...
(Date:6/30/2015)... , June 30, 2015  Juniper Pharmaceuticals, ... focused on developing therapeutics that address unmet medical ... George Elston will present at the ... Wednesday, July 8, 2015Time: , 4:45 PM EDTLocation: ... (live & archive): , www.juniperpharma.com, under  ,Investor, ...
Breaking Biology Technology:Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 2Axovant Sciences To Host Investor Briefing And Live Webcast During AAIC 2015 Meeting 3Apex Therapeutics Presented Company Overview at This Year’s BIO International Convention in Philadelphia, PA 2Rivier University and Beijing City University Academic and Cultural Exchanges Begin 2Juniper Pharmaceuticals to Present at Cantor Fitzgerald Inaugural Healthcare Conference on July 8, 2015 2
... ARUP Laboratories, pathologist, Ronald L. Weiss, MD, MBA, ... of American Pathologists at CAP ,11, the organization,s annual ... the CAP, the award honors members "who have made ... the specialty of pathology." (Logo: http://photos.prnewswire.com/prnh/20110915/SF69370LOGO ...
... BEACH, Fla., Nov. 9, 2011 Biotech developer Divine ... which has been expanding the topical hair-growth segment, is ... system, Polaris API Solution 9, to be supplied by ... With well-established materials like minoxidil sulfate, finasteride, alfatradiol, ...
... Nov. 9, 2011 Third Quarter Highlights ... Awarded $5.7 million contract from Department of Defense (DoD) for ... awarded PharmAthene 50% net profit split on worldwide sales of ... million in net profits Completed 1500L commercial scale-up and ...
Cached Biology Technology:ARUP Laboratories' Pathologist, Ronald L. Weiss, MD, Honored With Lifetime Achievement Award for Contributions to Patient Care and Pathology 2Divine Skin Rolls Out Polaris API Solution 9: A New Technology for Physicians 2Divine Skin Rolls Out Polaris API Solution 9: A New Technology for Physicians 3PharmAthene Reports Third Quarter 2011 Financial and Operating Results 2PharmAthene Reports Third Quarter 2011 Financial and Operating Results 3PharmAthene Reports Third Quarter 2011 Financial and Operating Results 4PharmAthene Reports Third Quarter 2011 Financial and Operating Results 5PharmAthene Reports Third Quarter 2011 Financial and Operating Results 6PharmAthene Reports Third Quarter 2011 Financial and Operating Results 7PharmAthene Reports Third Quarter 2011 Financial and Operating Results 8
Mouse monoclonal antibody raised against a partial recombinant ACTN4. NCBI Entrez Gene ID = ACTN4...
Rabbit polyclonal antibody to GluR2...
... can be used to test the crossreactivity ... sera that are commonly used as blocking ... spots for 19 different protein preparations on ... crossreactivity and species specificity, QC of purified ...
... array sample elements. , ,Includes: , DiscoverLight ... BSA in PBS (10X): 50 ml , ... , BupH Phosphate Buffered Saline: 8 packs ... ml ampules , SuperSignal West Pico Luminol Enhancer: 2 ...
Biology Products: