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:10/14/2014)... – Like discriminating thieves, prostate cancer tumors scavenge and ... body. But such avarice may be a fatal weakness. ... way to kill prostate cancer cells by delivering a ... destroys the diseased cells brimming with the mineral, leaving ... two drugs already commercially available for other uses, could ...
(Date:10/14/2014)... how to produce enough food to feed the world ... Organization of the United Nations predicts that food production ... feed a growing global population, and plants are one ... Plants—grains, cereals, fruits, vegetables, and more—feed humans directly ... tap into our knowledge of how plants work to ...
(Date:10/14/2014)... – A team of scientists led by researchers ... and the University of Miami Miller School of ... key genetic pathway underlying bipolar (manic depressive) disorder, ... for treating bipolar affective disorder, as well as ... new findings, published online this week in Nature ...
Breaking Biology News(10 mins):Prostate cancer's penchant for copper may be a fatal flaw 2Building a bridge from basic botany to applied agriculture 2Building a bridge from basic botany to applied agriculture 3Rare genetic disease protects against bipolar disorder 2Rare genetic disease protects against bipolar disorder 3
... research from Queen Margaret University, Edinburgh, shows that sugary ... gain, carbohydrate craving or adverse mood effects in overweight ... drinking. The study, ,Effects of sucrose drinks ... overweight women over 4 weeks, which was conducted by ...
... formidable marine predators, the marine mosasaur Platecarpus , lived in ... to have swum like an eel. That theory is debunked in ... . An international team of scientists have reconceived the animal,s morphology, ... Natural History Museum of Los Angeles County. The ...
... researchers are developing methods that can accurately assess the ... and spectra of a patient,s prostate gland. This may ... treatment and which are better served by "watchful waiting," ... patients with low-grade tumors. In a presentation next ...
Cached Biology News:Research shows sugary drinks do not cause weight gain 2Mosasaur fossil at Natural History Museum of L.A. County re-explores 85-million-year-old sea monster 2Rutgers researchers assess severity of prostate cancers using magnetic resonance imaging 2
(Date:10/18/2014)... The Asia-Pacific Bio-based Advanced Phase Change Materials Market ... change material market in Asia-Pacific with analysis and ... of the Asia-Pacific Bio-based Advanced Phase Change Materials ... in-depth analysis provided. This also provides a glimpse ... phase change material market, and is supported by ...
(Date:10/18/2014)... The Asia-Pacific Liquid Crystal on Silicon (LCoS) ... in Asia-Pacific with analysis and forecast of revenue. This ... is expected to reach $380.0 million by 2018, at ... Browse through the TOC of the Asia-Pacific LCoS display ... analysis provided. This also provides a glimpse of the ...
(Date:10/18/2014)... The report " Cloud Analytics Market [Cloud BI; ... Video; Predictive Analytics: Global Advancements, Delivery Models, Market ... - 2018) ", defines and segments the global ... an in-depth analysis and forecasting of market sizes. ... market, various restraints, and opportunities impacting it along ...
(Date:10/17/2014)... DIEGO and HILDEN, Germany ...   , Translational research in ... capabilities being presented at the American Society of ... of 250,000-plus DNA samples linked to Ingenuity ® ... depth for genomic analysis  Ingenuity ® ...
Breaking Biology Technology:The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Bio-based Advanced Phase Change Materials Market is estimated to grow to $39.8 million by 2018 - New Report by MicroMarket Monitor 4The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Liquid Crystal on Silicon (LCoS) display market is expected to reach $380.0 million by 2018 - New Report by MicroMarket Monitor 3Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 2Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 3Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 4Cloud Analytics Market (by Cloud Business Intelligence & Predictive Analytics) Expected to Cross $16.52 Billion by 2018 - New Report by MarketsandMarkets 5QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 2QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 3QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 4QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 5QIAGEN Demonstrates Expanded Bioinformatics Workflows at ASHG; Strong Market Adoption as Researchers Analyze Genomic Data on More Than a Quarter-Million Samples in Secure Private Cloud 6
... WILMINGTON, N.C., Sept. 9 Wilmington Pharmaceuticals announced ... granted marketing approval for METOZOLV((TM)) ODT (metoclopramide HCl), an ... gastroesophageal reflux disease (GERD) and diabetic gastroparesis. Wilmington has ... pharmaceutical company with a focus on gastrointestinal disorders. , ...
... , SAN DIEGO, Sept. 9 Orexigen((R) )Therapeutics, Inc. ... obesity, today announced that the Company will be speaking at two upcoming investor ... , Morgan Stanley Global Healthcare Unplugged Conference, ... Time, Location: Grand Hyatt Hotel, New York, ...
... , , , , ... SAN FRANCISCO, Sept. 9 Medivation, Inc. (Nasdaq: MDVN ) ... the following conferences: , , , The ... Eastern Time at the Millennium Broadway Hotel in New York , ...
Cached Biology Technology:Wilmington Pharmaceuticals Receives FDA Approval for Orally Disintegrating Metoclopramide Tablet 2Wilmington Pharmaceuticals Receives FDA Approval for Orally Disintegrating Metoclopramide Tablet 3Wilmington Pharmaceuticals Receives FDA Approval for Orally Disintegrating Metoclopramide Tablet 4Medivation Announces Participation in Upcoming Conferences 2
... The CHEMICON MDR1 Shift Assay provides a ... that occur upon transport of MDR1 substrates. Thus, ... extent to which small molecules act as transport ... increased in the presence of MDR1 substrates, the ...
... is a simple high performance method for ... detergents without significant dilution of protein solution. ... the Detergent-OUT Spin column and collect detergent ... is suitable for removing detergents from a ...
... The wide and long ... of Polaroid gel documentation systems. ... holds the camera in place ... that allows photography on the ...
... are derived from Paraffin embedded tissue blocks, ... procedures to ensure the highest quality. Tissues ... one block, sectioned at a thickness of ... Sections are large (3-5 mm in diameter) ...
Biology Products: