Navigation Links
First electrophysical recording of sleep in a wild animal
Date:5/13/2008

In the first experiment to record the electrophysiology of sleep in a wild animal, three-toed sloths carrying miniature electroencephalogram recorders slept 9.63 hours per day6 hours less than captive sloths did, reports an international team of researchers working on the Smithsonian Tropical Research Institutes Barro Colorado Island in Panama.

We are fascinated that some species sleep far longer than others. If we can determine the reasons for variations in sleep patterns, we will gain insight into the function of sleep in mammals, including humans, said first author Niels Rattenborg, group leader of the Sleep and Flight Group at the Max Planck Institute for Ornithology. If animals behave differently in captivity (where all previous comparative studies were performed) than they do in the wild, measuring their brain activity in captivity can lead to the wrong conclusions.

The research team got around this problem by using a technique developed for monitoring brain activity in humans in conjunction with a newly developed miniature recorder for neurophysiological data in order to monitor sleep in the wild.

In addition to two brain activity sensors worn as a cap on their heads, three adult three-toed sloths, Bradypus variegatus, also were fitted with radio-telemetry collars and accelerometers so that their exact locations and movements could be monitored during the next three to five days. The activity of two other sloths was monitored via radio-telemetry collar alone, for approximately seven months using a unique Automated Radio Telemetry System in place on the island.

The placement of sensors on sloths living in treetops demonstrates the feasibility of understanding a complex behavior, such as sleep, in the intricate tropical forest environment. It also will lead to more refined, comparative sleep research.

The beauty of the automated telemetry system is that it makes a new suite of animal behavior studies possible, said Martin Wikel
'/>"/>

Contact: Beth King
kingb@si.edu
703-487-3772, ext. 8216
Smithsonian Tropical Research Institute
Source:Eurekalert  

Page: 1 2

Related biology technology :

1. Reclast(R) Receives US FDA Approval as First and Only Once-Yearly Treatment for Women With Postmenopausal Osteoporosis
2. GlaxoSmithKline Recognizes University of Michigans Dr. Daniel F. Hayes as the First Recipient of the Gianni Bonadonna Breast Cancer Award
3. Kewaunee Scientific Announces First Quarter Results and Quarterly Dividend
4. Genmab Announces 2007 First Half Year Results
5. Pharsight Achieves First License Sale for Public-Source Database
6. Novare Announces First Ever Single Port Laparoscopic Kidney Removal (Nephrectomy) Using RealHand(TM) HD Instruments
7. ExonHit Therapeutics: Allergan and ExonHits First Collaboration Compound to Begin Human Clinical Trials
8. China Medical Technologies Reports First Quarter Financial Results
9. Pressure BioSciences, Inc. Issued First Patent in Canada
10. Peregrine Pharmaceuticals to Announce First Quarter FY 2008 Financial Results
11. Exelixis Reports Encouraging Interim Data From a Phase 2 Trial of XL647 as First-Line Therapy for Non-Small Cell Lung Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
First electrophysical recording of sleep in a wild animal
(Date:10/19/2014)... The Latin American hardware encryption display market report defines ... and forecast of revenue. This market was valued at ... $2,366.8 million by 2018, at a CAGR of 70.3% ... of the Latin American hardware encryption market report to ... also provides a glimpse of the segmentation of the ...
(Date:10/19/2014)... 2014 The Asia-Pacific Bromine Market ... Asia-Pacific with analysis and forecast of revenue. , ... Bromine Market report, to get an idea of ... glimpse of the segmentation in the Asia-Pacific bromine ... figures. , http://www.micromarketmonitor.com/market/asia-pacific-bromine-6741503144.html , Bromine ...
(Date:10/19/2014)... October 19, 2014 The report "Chocolate, ... Share, Trade, Prices, Geography Trend and Forecast (2011 - ... category, and geography and studies the major market drivers, ... America, Europe, and Asia. , The global chocolate market ... $98.3 billion in 2016 at an estimated CAGR of ...
(Date:10/19/2014)... According to market research report ... Controllers; Wireless gateways)]- Global Advancements, Forecasts and Analysis ... Outdoor Wi-Fi market with analysis and forecasting of ... identifies the drivers and the restrains for this ... and challenges. , Browse 65 market data tables ...
Breaking Biology Technology:The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 2The Latin American hardware encryption display market is expected to reach $2,366.8 million by 2018 - New Report by MicroMarket Monitor 3The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 2The Asia-Pacific Bromine Market is estimated to grow to $4,080.1 million by 2018 - New Report by MicroMarket Monitor 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 2Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 3Chocolate Market Projected To Reach $98.3 Billion by 2016 - New Report by MarketsandMarkets 4Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 2Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 3Outdoor Wi-Fi Market (by Access Points, WLAN Controllers, Wireless gateways) Expected to Cross $37.2 Billion by 2018 - New Report by MarketsandMarkets 4
... Eisai Corporation of North,America and its U.S. subsidiary, ... and Drug Administration (FDA) Advisory Committee on Anesthetic,and ... 3 in favor (with one,abstention) of approval of ... agent for sedation in adult patients,undergoing diagnostic or ...
... WALTHAM, Mass., May 7 Interleukin Genetics,Inc. (AMEX: ... conference call and,webcast on Wednesday, May 14, 2008 at ... financial results and provide an update on recent,corporate developments., ... or 719-325-4869,(international). The live webcast will be available on ...
... and Other ... to Nektar, SAN CARLOS, Calif., May 7 ... U.S. Patent and Trademark Office,has issued Patent No. 7,368,102, ... Inhalation Powder (TIP) and other,aminoglycoside antibiotics delivered via Nektar,s ...
Cached Biology Technology:FDA Advisory Committee Votes in Favor of Approval of Fospropofol Disodium Injection for Sedation 2FDA Advisory Committee Votes in Favor of Approval of Fospropofol Disodium Injection for Sedation 3Interleukin Genetics Announces Conference Call and Webcast to Discuss First Quarter 2008 Business Results 2Nektar Receives Patent Covering Pulmonary Targeted Antibiotics 2Nektar Receives Patent Covering Pulmonary Targeted Antibiotics 3
(Date:10/16/2014)... SHELTON, Conn. , October 16, 2014 ... ("NXT-ID" or the "Company"), a biometric authentication company focused ... present its leading edge technologies including Wocket™, the Smart ... Review® (FiRe) Conferenece. FiRe is a leading global conference ... Hosted by Mark Anderson , founder ...
(Date:10/15/2014)... Life, is a non-traditional biophysics textbook and it describes ... a journey of discovery into biological systems and provides ... regulation. It is about how our genes make proteins ... billions of cells in an organism. It quantifies the ... which can be found on both large and small ...
(Date:10/15/2014)... in female mice to an enzyme activated by the ... resistant to respiratory infections than males. Now, an international ... bacterial pneumonia in female mice is linked to the ... that this enzyme is ultimately activated by the release ... lead by Professor Lester Kobzik at the Harvard University ...
Breaking Biology News(10 mins):NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3New book about life as seen from physics 2
... At noon, it was black as night. It was May ... day was at hand. Accounts of that day, which became ... meals by candlelight, night birds coming out to sing, flowers ... this day has been solved by researchers at the University ...
... of Science Picks, discover details about the recent major ... out about a hypothetical earthquake scenario unveiled for Southern ... the Hayward fault line. Learn about climate change impacts ... attend a briefing on the issue, how mineral production ...
... have identified specific molecules in the brain that are ... cells, which, when activated, can transform into neurons (nerve ... published online this week in the Proceedings of the ... earlier paper (published in the May issue of Stem ...
Cached Biology News:Mystery of infamous 'New England Dark Day' solved by 3 rings 2USGS science picks -- leads, feeds and story seeds 2USGS science picks -- leads, feeds and story seeds 3USGS science picks -- leads, feeds and story seeds 4USGS science picks -- leads, feeds and story seeds 5USGS science picks -- leads, feeds and story seeds 6USGS science picks -- leads, feeds and story seeds 7USGS science picks -- leads, feeds and story seeds 8USGS science picks -- leads, feeds and story seeds 9USGS science picks -- leads, feeds and story seeds 10 Brain stem cells can be awakened, say Schepens scientists 2
Bovine Calf Serum...
... This product is designed to deparaffinize and ... formalin fixed paraffin-embedded tissue sections mounted on ... melting the paraffin at the high temperature ... with emulsification of the paraffin by detergent. ...
Chicken polyclonal to ytzF ( Abpromise for all tested applications). Antigen: Full length protein...
NEWBORN CALF SERUM AND PLASMA...
Biology Products: