Navigation Links
New study: Even in flies, enriched learning drives need for sleep
Date:6/23/2011

Madison, Wis. Just like human teenagers, fruit flies that spend a day buzzing around the "fly mall" with their companions need more sleep. That's because the environment makes their brain circuits grow dense new synapses and they need sleep to dial back the energy needs of their stimulated brains, according to a new study by UW- Madison sleep researchers.

Researchers saw this increase in the number of synapses -- the junctions between nerve cells where electrical or chemical signals pass to the next cell -- in three neuronal circuits they studied. The richer "wake experience" resulted in both larger synaptic growth and greater sleep need.

The study, published today in the journal Science, provides structural evidence for the theory that "synaptic homeostasis" is one of the key reasons all animals need sleep. Researchers Dr. Daniel Bushey, Dr. Giulio Tononi and Dr. Chiara Cirelli of the Wisconsin Center for Sleep and Consciousness also looked at the role the gene implicated in Fragile X syndrome plays in re-normalizing the brain during sleep.

In one experiment, researchers took young fruit flies that spent the first days of their lives alone in single tubes too small to allow flying. Then they released them in groups into a large lighted chamber that allowed them to fly around together for their 12-hour day.

All the flies grew more synapses while they were awake for several hours, the research showed. But this was especially true for the flies in the enriched environment, which grew new branches with many new synapses. After their mall visit, the flies were put back into the single tubes and slept much longer for at least one day. Their synapses returned to normal size after sleep.

Those flies that visited the mall, but were deprived of sleep, continued to have synapses that were larger and denser.

"Sleep prunes back the new synapses; you have to create space for synapses to grow again or you can't
'/>"/>

Contact: Dian Land
dj.land@hosp.wisc.edu
608-261-1034
University of Wisconsin-Madison
Source:Eurekalert

Page: 1 2

Related biology technology :

1. Penn study: Transforming nanowires into nano-tools using cation exchange reactions
2. Study: Medicare Covers Only Half the Cost of Administering Chemotherapy to Seniors with Cancer
3. New Study: Lp(a) Joins LDL as Heart Disease Risk Factor
4. Study: Era of Rapid Growth in Biomedical Research Over
5. Study: Meaningful improvements Using Gene Therapy in Parkinsons Disease
6. Reportlinker Adds Case Study: Personalized Cancer Therapy - The era of biomarker identification and companion diagnostic co-development
7. SACHEM Launches 2-D HPLC e-Learning Program : New e-Learning Program Teaches Scientists How to Better Analyze and Prove Product Purity Through Greater Sensitivity and Precision in Identification of Trace Components
8. Glen C. Williams Joins eLearning Sales Team for Simbionix, Heading up Chicago Office
9. Pearson Foundation Supports Incoming LSU Biology Students With 21st Century Learning Tools
10. Sparta Systems TrackWise(R) Solution Delivers Workforce Training and Learning Initiatives for Cangene Corporation
11. Tata Interactive Systems Initiates Vertical-Focused Learning Solutions for Health Care, Pharmaceutical, and Biotechnology
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/15/2014)... January 15, 2014 This webinar will ... and clinical safety assessment in biosimilars. , Regulatory frameworks ... biosimilar drug development, however the complex nature of biopharmaceuticals ... safety and efficacy extremely challenging. Based on the specific ...
(Date:1/15/2014)... (PRWEB) January 15, 2014 DTS Language ... its Online Web Portal for Life Science organizations who need ... specify the subject matter of their documents in advance with ... help reduce time-to-delivery of translations, often a critical factor in ...
(Date:1/14/2014)... PA (PRWEB) January 14, 2014 Date: Friday, ... , Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... national nonprofit organization solely dedicated to finding a cure for ... affected worldwide, will host its annual Crystal Ball on Friday, ...
(Date:1/14/2014)... (PRWEB) January 14, 2014 EquitiesIQ, a ... Inc. (OTCQB: ALQA). Alliqua is an emerging biomedical company ... the wound care market. , Free report download: ... with a seasoned management team and Board, which launched ...
Breaking Biology Technology:Xtalks Life Sciences Webinar Examines Safety Assessment of Biosimilars 2DTS Improves Efficiency for Life Science Document Translations 2Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... Solutions, LLC, Santa Clara, CA, a manufacturer of ... applications, announced the release of TruTorr(TM), a single-use ... containers, in order to prevent overpressure damage, at ... TruTorr system consists of a disposable pressure sensor, ...
... option for millions of Americans with debilitating lung ... (NYSE: AZN ) today announced that ... approved SYMBICORT (budesonide/formoterol fumarate dihydrate) 160/4.5 mcg for ... in patients with chronic obstructive pulmonary disease (COPD), ...
... Is Just What Diabetics Have Been Waiting For. The Sleek, Bold ... By Storm. , ... Greenville, SC (PRWEB) February 27, 2009 -- For ... that is both functional and attractive. In recent years, many companies ...
Cached Biology Technology:Finesse Announces TruTorr(TM) Single-Use Pressure Sensor 2FDA Approves SYMBICORT(R) for Chronic Obstructive Pulmonary Disease (COPD) 2FDA Approves SYMBICORT(R) for Chronic Obstructive Pulmonary Disease (COPD) 3FDA Approves SYMBICORT(R) for Chronic Obstructive Pulmonary Disease (COPD) 4FDA Approves SYMBICORT(R) for Chronic Obstructive Pulmonary Disease (COPD) 5FDA Approves SYMBICORT(R) for Chronic Obstructive Pulmonary Disease (COPD) 6Home Delivery Medical Offers New Glucose Meter With State-Of-The-Art Technology 2Home Delivery Medical Offers New Glucose Meter With State-Of-The-Art Technology 3
(Date:4/23/2014)... Putnam Valley, NY. (Apr. 23 2014) ... human neural stem cells (hNSCs) into the brains ... differentiation after 22 and 24 months found that ... months and did not cause tumors. , The ... of Cell Transplantation but is currently ...
(Date:4/23/2014)... trope that the likelihood of an accurate group decision ... hold up when a collective faces a variety of ... Instead, Princeton University researchers report that smaller groups actually ... may become excessively focused on only certain pieces of ... what is known about collective intelligence, or the "wisdom ...
(Date:4/23/2014)... a signing ceremony in Buenos Aires yesterday, Argentina ... an associate member state. The move strengthens the ... science communities. It grants Argentinian scientists access to ... beneficial collaborations. , "Ever since its inception, fostering ... have been at the core of EMBL,s mission," ...
Breaking Biology News(10 mins):Study finds long-term survival of human neural stem cells transplanted into primate brain 2Too many chefs: Smaller groups exhibit more accurate decision-making 2Too many chefs: Smaller groups exhibit more accurate decision-making 3
... OTO EXPO of the American Academy of Otolaryngology Head ... nose, and throat doctors in the world, will convene September ... scientific research sessions, 594 posters, and several hundred instruction course ... for journalists from around the world to cover breaking science ...
... 2010 - Eurofins MWG Operon, an expert in next generation ... GS Junior. The GS Junior is the optimum system for ... one eighth of the capacity of a GS FLX Titanium ... run. As a consequence, the GS Junior adds a higher ...
... This release is available in French ... high electrical conductivity that promise to revolutionize a wide range ... A team of McGill University researchers have now reported ... along one single conductive polymer molecule at a time, a ...
Cached Biology News:2010 AAO-HNSF miniseminars: Tuesday, Sept. 28, 2010 22010 AAO-HNSF miniseminars: Tuesday, Sept. 28, 2010 3Striding towards a new dawn for electronics 2