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:3/26/2015)... 2015 The Market Element LLC, a ... alliance with Designing Gig LLC to provide website design, ... , “Forging this alliance with Designing Gig represents a ... extend a comprehensive, end-to-end, digital solution for our clients, ... said Chuck Miller, president of The Market Element. “For ...
(Date:3/26/2015)... Mich., March 26, 2015 Neogen Corporation (NASDAQ: ... for the third quarter of fiscal 2015, which ended ... the prior year,s $6,575,000. Earnings per share in the ... ago. Current year-to-date net income increased 17% over prior ... $20,621,000, or $0.56 per share, for the same period ...
(Date:3/26/2015)... "In America," the popular news television program that airs in ... legendary film actor James Earl Jones, has announced that it ... , Botany is commonly described as the scientific study ... bit more complicated than that. Scientists and other professionals study ... the smallest bacteria known to man to the largest trees ...
(Date:3/25/2015)... pharmaceutical market is one of the most ... its absolute size, plus a growing economy and increasing ... Business Monitor International. The Russian market is set to ... market, with growth estimates around 10-15% annually reaching an ... About Green Cross Green Cross provides ...
Breaking Biology Technology:The Market Element LLC and Designing Gig LLC Form Strategic Alliance 2Neogen reports 13% increase in net income 2Neogen reports 13% increase in net income 3Neogen reports 13% increase in net income 4Neogen reports 13% increase in net income 5Neogen reports 13% increase in net income 6Neogen reports 13% increase in net income 7Neogen reports 13% increase in net income 8
... - The University of Wisconsin-Madison professor who ... reportedly agreed to operate a research lab as an adjunct ... ,The Santa Barbara Independent is reporting ... will be in Santa Barbara about one month out of ...
... again, and myriads of opinions are being voiced. If we look ... by an almost equal number of misconceptions and confusion about the ... recent article run on WTN by James Carlini highlights ... examine one small part of the immigration debate and its determinable ...
... University of Wisconsin-Madison faculty members Sean Carroll ... to the National Academy of Sciences . , ... most prestigious honors bestowed upon American scientists. Carroll, a ... professor of chemistry and biochemistry, were recognized for distinguished ...
Cached Biology Technology:Jamie Thomson to run California research lab 2Misconceptions dominate the immigration debate 2Misconceptions dominate the immigration debate 3Misconceptions dominate the immigration debate 4Misconceptions dominate the immigration debate 5
(Date:3/3/2015)... 3, 2015 Cryoport, Inc. (OTCBB: ... cryogenic logistics solutions for the life sciences ... cell lines, clinical research organizations, vaccine manufacturers, ... the expansion of its relationship with ... Hutch") Clinical Research Division with the inclusion ...
(Date:3/2/2015)... 2015  Businesses have a new option for ... Rankins Enterprises has announced the launch of a ... for businesses to protect their customers, personal data, ... Beconux is a biometric transaction processing system ... to an ATM machine, the new system fuses ...
(Date:2/25/2015)... Feb. 25, 2015  ABC Financial Services (ABC), ... the Health and Fitness Industry, today announced enhancements ... MYiCLUBonline.  The latest upgrade includes advances to the ... cardless check-in via Identity One fingerprint biometrics. The ... through interactive displays at the International Health, Racquet ...
Breaking Biology News(10 mins):Cryoport, Inc. Expands Support of Fred Hutchinson Cancer Research Center's Clinical Research Division 2Cryoport, Inc. Expands Support of Fred Hutchinson Cancer Research Center's Clinical Research Division 3Personal Data Protection Company Launches New Product 2ABC Financial Unveils New Software Enhancements 2ABC Financial Unveils New Software Enhancements 3
... spent at sea, a magnetic map is apparently responsible for ... of data collected over 56 years and reported online on ... publication. "To find their way back home across thousands ... that exists where they first enter the sea as juveniles," ...
... When migrating, sockeye salmon typically swim up to 4,000 miles into ... reaches of the rivers in which they were born to spawn ... wondered how salmon find their way to their home rivers over ... A new study, published in this week,s issue of ...
... $25 billion in health information technology (IT) as a ... little is known about how IT applications improve patient ... Missouri nursing informatics expert suggests that sophisticated IT leads ... staff, which allows staff to more efficiently coordinate care ...
Cached Biology News:Magnetic map guides salmon home 2Animal magnetism: First evidence that magnetism helps salmon find home 2Animal magnetism: First evidence that magnetism helps salmon find home 3Information Technology improves patient care and increases privacy, MU informatics expert says 2
... Multi-Disciplinary Team The Schleicher & ... stand-alone work center dedicated to custom ... The facilitys experienced project teams, comprised ... Marketing professionals, work closely with collaborators ...
... a commonly used technique for studying protein ... electrophoresed on SDS-PAGE and transferred to a ... they are probed with specific antibodies. Unlike ... of Southern and Northern blots, it has ...
... Peptide microarrays containing peptidomimetics built on ... on-chip synthesis platform. These microarrays are ... Custom Peptide Microarray Service. ... is completely customer specified. Thousands of ...
... Now, for the first time, you ... faster and more efficiently without interferences. The ... to remove unwanted, multiple high-abundant proteins from ... with just one device. With this ...
Biology Products: