Navigation Links
Grasshopper love songs give insight into sensory tuning

As anyone whose nerves have been jangled by a baby's howl or who have been riveted by the sight of an attractive person knows, nature has evolved sensory systems to be exquisitely tuned to relevant input. A major question in neurobiology is how neurons tune the strength of their interconnections to optimally respond to such inputs.

Neuronal circuitry consists of a web of neurons, each triggering others by launching bursts of neurotransmitters at targets on receiving neurons to produce nerve impulses in those targets. Neurons adjust the strength of those connections adaptively, to amplify or suppress connections. Some four decades ago, a general principle called the "efficient coding hypothesis" was formulated, holding that sensory systems adjust to efficiently represent the complex, dynamic sounds, sights, and other sensory input from the environment.

Writing in the August 4, 2005, issue of Neuron, researchers led by Christian K. Machens of Cold Spring Harbor Laboratory and Andreas Herz of Humboldt-University Berlin describe experiments with grasshopper auditory neurons that reveal new details of such sensory coding. Their findings show that "optimal stimulus ensembles" that trigger the neurons differ from those the grasshopper hears in the natural environment but largely overlap with components of natural sounds found in mating and mate-location calls.

In their experiments, the researchers first played various snippets of white noise to isolated grasshopper auditory nerves and measured the electrophysiological signals reflecting the reactions of the auditory neurons to those sounds. These experiments revealed the distribution of stimuli called the "optimal stimulus ensemble" (OSE) that allowed the neurons in the system to perform optimally.

Once the researchers had characterized the OSE, they then analyzed how this measure compared to the neuronal response to natural sounds--including environmental sounds like the rustling of grass an
'"/>

Source:Cell Press


Page: 1 2

Related biology news :

1. Birds brains reveal source of songs
2. Zebra finches remember songs dad sang
3. Cities change the songs of birds
4. New insight into people who see colors in letters and numbers
5. Alaskan puzzles, monitoring provide insight about North Pacific salmon runs
6. New insight into regulation of blood stem cells
7. New insight into autoimmune disease: Bacterial infections promote recognition of self-glycolipids
8. New insights into how Huntingtons disease attacks the brain
9. Gambling monkeys give insight into neural machinery of risk
10. Structures of marine toxins provide insight into their effectiveness as cancer drugs
11. Flies on speed offer insight into the roles of dopamine in sleep and arousal
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Grasshopper love songs give insight into sensory tuning

(Date:3/18/2015)... , March 18, 2015 As mobile ... new revolutionary smart wallets and apps continue to be introduced ... entrenched in the mobile payment industry in focus today are:  ... Ltd. (NYSE: BABA ), Apple Inc. (NASDAQ: ... and Facebook Inc. (NASDAQ: FB ) ...
(Date:3/17/2015)... 17, 2015 Emotient, the leader in ... announced general availability of Emotient Analytics , ... analysis of facial expressions. The system analyzes videos ... products and services. It delivers audience response metrics ... - as derived from facial evidence of emotional ...
(Date:3/16/2015)... 16, 2015 Between 16 ... present groundbreaking innovations in biometric identification at the ... .      (Photo: http://photos.prnewswire.com/prnh/20150316/735333 ... is well at the forefront: the company,s all ... in Germany . BiometricGate is ...
Breaking Biology News(10 mins):Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 2DERMALOG Presents its Latest Biometric Innovations at the Hannover CeBIT Exhibition, 16 - 20 March 2015 3
... 4, 2008 Biologists examining ecosystems similar to those ... ago have made a surprising discovery: Viruses that infect ... in other regions of the globe. The finding, ... surprising because bacteria are ubiquitous on Earth. They,ve been ...
... is as much down to having the right genetic ... a recent study. Psychologists at the University of ... Research in Australia found that happiness is partly determined ... are largely hereditary. Using a framework which psychologists ...
... Zoos Conservation and Research Center in Front Royal, Va., is ... vanish from the planet. The oryx, along with ... Tunisia in December 2007 for an eventual reintroduction into the ... Oryx are a type of desert antelope that are mostly ...
Cached Biology News:Biologists surprised to find parochial bacterial viruses 2Biologists surprised to find parochial bacterial viruses 3National Zoo scimitar-horned oryx going into the wild 2
(Date:3/29/2015)... 29, 2015 Caris Life Sciences® ... data showing the presence of PD-1 and ... samples. Using Caris Molecular Intelligence®, the company,s ... expression of programmed cell death protein-1 (PD-1) ... while its ligand (PD-L1) expression was variable ...
(Date:3/27/2015)... 27, 2015 Earlier this year, the ... of hair regrowth in adult men and women with ... Norwood Hamilton classifications of IIa-V and Fitzpatrick Classification of ... by products that over-promise and under-deliver, FDA Clearance underscores ... and confidence among more than 80 million men and ...
(Date:3/27/2015)... 27. März 2015  Peter Walter wurde ... Science für seine bahnbrechende Arbeit ausgewählt, die ... transportiert werden, sowie für die Entschlüsselung der ... auf Stress nutzen, der mit der Ansammlung ... Professor für Biochemie an der University of ...
(Date:3/27/2015)... YORK , March 27, 2015   ... in liquid photopurification, announced today that the Company ... for the continued trading of SurePure ("SURP") securities ... venture marketplace for entrepreneurial and development stage companies. ... Group introduced standards and eligibility requirements designed to ...
Breaking Biology Technology:Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 2Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 3Caris Life Sciences' Multiplatform Tumor Profiling Technology Identifies Expression of PD-1 and PD-L1 in Gynecologic Malignancies 4Dr. Robert Leonard Applauds FDA Clearance of Capillus272Pro™ Hair Loss Laser Cap 2Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 2Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 3Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 4SurePure Completes Verification and Approved for Trading on the OTCQB Marketplace 2
... (Amex: ETC ) ("ETC" or the "Company") ... BARA-MED(R) XD Monoplace,Hyperbaric Chambers by Comprehensive Healthcare Solutions, ... Solutions a growing company,who focuses solely on initiating ... ETC prides itself on being the manufacturer ...
... 26 Insmed Inc. (Nasdaq:,INSM), a developer of ... requested a hearing before a Nasdaq Listing,Qualifications Panel ... the,Company,s common stock from the Nasdaq Global Market., ... Stock Market ("Nasdaq") on,December 20, 2007 indicating that ...
... N.J., Dec. 24 Genta,Incorporated (Nasdaq: GNTA ) ... Listing Qualifications Staff of The NASDAQ Stock Market,that it ... a minimum closing bid price of $1.00 per share. ... June 16, 2008 to regain,compliance, which requires a closing ...
Cached Biology Technology:Environmental Tectonics Corporation Announces Sale of Monoplace Hyperbaric Chambers 2Environmental Tectonics Corporation Announces Sale of Monoplace Hyperbaric Chambers 3Insmed to Appeal Delisting Notification From Nasdaq 2Genta Receives NASDAQ Non-Compliance Notice 2Genta Receives NASDAQ Non-Compliance Notice 3
... • Enzyme concentration - 5 units/µL ,• ... higher yields ,• Leaves an 'A' overhang ... polymerase which exhibits very high activity in ... To ensure the quality of the enzyme, ...
Our original highly-purified, robust Taq Polymerase which delivers consistently high yields and minimal background...
... AmpliTaq DNA Polymerase is the ... PCR process, a testimony to its overall ... profile makes it ideal for PCR applications. ... guarantee reproducible results. ,, AmpliTaq DNA ...
... Taq DNA Polymerase is a versatile and ... all PCR applications. GCpro Taq DNA Polymerase ... in E. coli, containing the DNA polymerase ... includes a highly processive 5'-3' DNA polymerase ...
Biology Products: