Open Access. Powered by Scholars. Published by Universities.®

Biochemistry, Biophysics, and Structural Biology Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 30 of 59

Full-Text Articles in Biochemistry, Biophysics, and Structural Biology

A Bird’S-Eye View On The Function Of Sleep, Charles Amlaner, Niels Rattenborg Dec 2009

A Bird’S-Eye View On The Function Of Sleep, Charles Amlaner, Niels Rattenborg

Charles J. Amlaner

Sleep has been detected in every animal that has been adequately studied (Cirelli & Tononi, 2008). The ubiquitous nature of sleep suggests that it evolved early in the course of evolution and therefore may serve a conserved function essential to all animals. This hypothesis forms the rationale behind the development of “simple” animal models of sleep (Allada & Siegel, 2008; Mignot, 2008). By studying sleep in animals such as the fruit fly (Drosophila melanogaster), where the power of genetic techniques can be readily employed,we may gain insight into the initial (perhaps cellular) function of sleep, a function that may still be relevant to understanding sleep in humans. Indeed, recent studies have already demonstrated remarkable similarities between sleep in Drosophila and sleep in mammals (Hendricks, Finn, Panckeri, et al., 2000; Shaw, Cirelli, Greenspan, et al., 2000; reviewed in Cirelli & Bushey, 2008). Although the utility of studying sleep in“simple”animal models is undeniable, it is unlikely that this approach alone will tell the whole story, especially given that Drosophilado not exhibit brain states comparable to mammalian slow-wave sleep (SWS) and rapid eye-movement (REM) sleep (Cirelli, 2006; Cirelli & Bushey, 2008; Hendricks & Sehgal, 2004; Nitz, van Swinderen, Tononi, et al ...


Basics Of Sleep Guide, Charles Amlaner, Patrick Fuller Apr 2009

Basics Of Sleep Guide, Charles Amlaner, Patrick Fuller

Charles J. Amlaner

No abstract provided.


The Evolution Of Sleep, Charles Amlaner, John Lesku, Niels Rattenborg Dec 2008

The Evolution Of Sleep, Charles Amlaner, John Lesku, Niels Rattenborg

Charles J. Amlaner

No abstract provided.


Predator-Induced Plasticity In Sleep Architecture In Wild-Caught Norway Rats (Rattus Norvegicus), John Lesku, Rebekah Bark, Dolores Martinez-Gonzalez, Niels Rattenborg, Charles Amlaner, Steven Lima Jun 2008

Predator-Induced Plasticity In Sleep Architecture In Wild-Caught Norway Rats (Rattus Norvegicus), John Lesku, Rebekah Bark, Dolores Martinez-Gonzalez, Niels Rattenborg, Charles Amlaner, Steven Lima

Charles J. Amlaner

Sleep is a prominent behaviour in the lives of animals, but the unresponsiveness that characterizes sleep makes it dangerous. Mammalian sleep is composed of two neurophysiological states: slow wave sleep (SWS) and rapid-eye-movement (REM) sleep. Given that the intensity of stimuli required to induce an arousal to wakefulness is highest during deep SWS or REM sleep, mammals may be most vulnerable during these states. If true, then animals should selectively reduce deep SWS and REM sleep following an increase in the risk of predation. To test this prediction, we simulated a predatory encounter with 10 wild-caught Norway rats (Rattus norvegicus ...


Single Slide Sets To Accompany The Srs Basics Of Sleep Guide (Version 1.1), Charles Amlaner (Editor), Orfeu Buxton (Editor) Dec 2007

Single Slide Sets To Accompany The Srs Basics Of Sleep Guide (Version 1.1), Charles Amlaner (Editor), Orfeu Buxton (Editor)

Charles J. Amlaner

Contains 10 hour-long peer-reviewed lectures in Powerpoint based on the SRS basics of sleep guide.


Slide Sets To Accompany The Srs Basics Of Sleep Guide, Charles Amlaner (Editor), Orfeu Buxton (Editor) Dec 2006

Slide Sets To Accompany The Srs Basics Of Sleep Guide, Charles Amlaner (Editor), Orfeu Buxton (Editor)

Charles J. Amlaner

Contains 10 hour-long peer-reviewed lectures in Powerpoint based on the SRS basics of sleep guide.


The Evolution Of Sleep: A Phylogenetic Approach, John Lesku, Niels Rattenborg, Charles Amlaner Dec 2005

The Evolution Of Sleep: A Phylogenetic Approach, John Lesku, Niels Rattenborg, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Phylogeny Of Sleep, Niels Rattenborg, Charles Amlaner Dec 2001

Phylogeny Of Sleep, Niels Rattenborg, Charles Amlaner

Charles J. Amlaner

No abstract provided.


The Evolutionary Significance Of Unihemispheric Slow Wave Sleep In Birds, Charles Amlaner Apr 2001

The Evolutionary Significance Of Unihemispheric Slow Wave Sleep In Birds, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Sleep-Wake Behavior Patterns And Eye Closure States In Juvenile Greater Rheas (Rhea Americana), Charles Amlaner, William Franklin, Christopher Ritzi, Steven Lima, Niels Rattenborg Apr 2001

Sleep-Wake Behavior Patterns And Eye Closure States In Juvenile Greater Rheas (Rhea Americana), Charles Amlaner, William Franklin, Christopher Ritzi, Steven Lima, Niels Rattenborg

Charles J. Amlaner

No abstract provided.


Design Of A Low Power Two-Channel Biotelemetry Transmitter And Demodulator For Use In Studies Of Sleep Behavior In Birds, Charles Amlaner, Brent Carr, Denis Curtis, Samuel Mcgarrah, Derek Sunderman Apr 1999

Design Of A Low Power Two-Channel Biotelemetry Transmitter And Demodulator For Use In Studies Of Sleep Behavior In Birds, Charles Amlaner, Brent Carr, Denis Curtis, Samuel Mcgarrah, Derek Sunderman

Charles J. Amlaner

Current technology in biomedical engineering has made it possible to remotely transmit, demodulate, store and accurately display a large suite of physiological electrical signals. By carefully selecting modern CMOS circuitry, the designer can fabricate micro-miniature, low power systems that ultimately can be hermetically sealed and implanted in a live, free-ranging animal. It was the lack of miniature, low power transmitter circuitry that has hampered some of the basic research questions on sleep patterns in free ranging animals, particularly birds and other small animals. We formulated a team of engineers in our Animal Sleep Research Laboratory to identify the critical technical ...


Behavior Patterns In Free-Ranging Black Rat Snakes, Charles Amlaner, James Withgott Aug 1997

Behavior Patterns In Free-Ranging Black Rat Snakes, Charles Amlaner, James Withgott

Charles J. Amlaner

While activity patterns of some animals are guided strictly by light-dark cycles or circadian rhythms, others show more flexible behavior. For ectothermic animals such as snakes, the temperature of their surroundings is a key factor in their physiology, behavior, and ecology. Various other factors, e.g., hunger, reproductive behavior, ecdysis, prey availability, and predation risk, also influence a snake's patterns of activity, often in conflicting and unpredictable ways. Studies of sleep patterns in such animals with variable and irregular activity may yield insights into the functions of sleep.


Natural History Note: Elaphe Obsoleta Obsoleta (Black Rat Snake) - Foraging, James Withgott, Charles Amlaner Dec 1995

Natural History Note: Elaphe Obsoleta Obsoleta (Black Rat Snake) - Foraging, James Withgott, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Monitoring Body Temperature And Nocturnal Activity Of Snakes With Implanted Transmitters, James Withgott, Charles Amlaner Dec 1995

Monitoring Body Temperature And Nocturnal Activity Of Snakes With Implanted Transmitters, James Withgott, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Natural History Note: Elaphe Obsoleta Obsoleta (Black Rat Snake) - Response To Fire, James Withgott, Charles Amlaner Dec 1995

Natural History Note: Elaphe Obsoleta Obsoleta (Black Rat Snake) - Response To Fire, James Withgott, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Transmitter Implantation Techniques In Black Rat Snakes, Charles Amlaner, James Withgott Dec 1995

Transmitter Implantation Techniques In Black Rat Snakes, Charles Amlaner, James Withgott

Charles J. Amlaner

No abstract provided.


Biotelemetry Xiii: Proceedings Of The Thirteenth International Symposium On Biotelemetry, Cristina Cristalli (Editor), Charles Amlaner (Editor), Michael Neuman (Editor) Dec 1994

Biotelemetry Xiii: Proceedings Of The Thirteenth International Symposium On Biotelemetry, Cristina Cristalli (Editor), Charles Amlaner (Editor), Michael Neuman (Editor)

Charles J. Amlaner

Proceedings of the Thirteenth International Symposium on Biotelemetry held at Williamsburg Lodge, Williamsburg, Virginia, March 26-31, 1995


Avian Sleep, Charles Amlaner, Nigel Ball Dec 1993

Avian Sleep, Charles Amlaner, Nigel Ball

Charles J. Amlaner

No abstract provided.


Biotelemetry And Hard Wire Recording Of Sleep Eeg's In Northern Bobwhite Quail (Colinus Virginanus), Nigel Ball, Charles Amlaner, Douglas Schmidt, James Shaffery Dec 1992

Biotelemetry And Hard Wire Recording Of Sleep Eeg's In Northern Bobwhite Quail (Colinus Virginanus), Nigel Ball, Charles Amlaner, Douglas Schmidt, James Shaffery

Charles J. Amlaner

No abstract provided.


Auditory Tele-Stimulated Arousal Thresholds During Sleep In Glaucous-Winged Gulls (Larus Glaucescens), Jim Nestler, Nigel Ball, Charles Amlaner Dec 1992

Auditory Tele-Stimulated Arousal Thresholds During Sleep In Glaucous-Winged Gulls (Larus Glaucescens), Jim Nestler, Nigel Ball, Charles Amlaner

Charles J. Amlaner

No abstract provided.


The Distribution And Behavior Of Glaucous-Winged Gulls (Laurus Glaucescens) At A Sanitary Landfill, Douglas Schmidt, Charles Amlaner, Nigel Ball Dec 1992

The Distribution And Behavior Of Glaucous-Winged Gulls (Laurus Glaucescens) At A Sanitary Landfill, Douglas Schmidt, Charles Amlaner, Nigel Ball

Charles J. Amlaner

No abstract provided.


Radio Tracking And Continuous Equipment Inventory Monitoring, Charles Amlaner Dec 1992

Radio Tracking And Continuous Equipment Inventory Monitoring, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Environmental Conditions As Constrainsts On Sleep In Free-Living Glaucous-Winged Gulls (Larus Glaucescens), Nigel Ball, Charles Amlaner, Mark Opp, James Shaffery Dec 1992

Environmental Conditions As Constrainsts On Sleep In Free-Living Glaucous-Winged Gulls (Larus Glaucescens), Nigel Ball, Charles Amlaner, Mark Opp, James Shaffery

Charles J. Amlaner

No abstract provided.


Eye States And Body Postures Associated With Sleep States Of Glaucous-Winged Gulls (Laurus Glaucescens), Charles Amlaner, Nigel Ball, Mark Opp, James Shaffery Dec 1992

Eye States And Body Postures Associated With Sleep States Of Glaucous-Winged Gulls (Laurus Glaucescens), Charles Amlaner, Nigel Ball, Mark Opp, James Shaffery

Charles J. Amlaner

No abstract provided.


Wildlife Biotelemetry And Radio Tracking After Several Decades Of Electronics Evolution, Charles Amlaner Dec 1991

Wildlife Biotelemetry And Radio Tracking After Several Decades Of Electronics Evolution, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Home Range Ecology And Spatial Utilization Of The Red Squirrel (Tamiasciurus Hudsonicus Richardsonii), D. Cary, Charles Amlaner Dec 1991

Home Range Ecology And Spatial Utilization Of The Red Squirrel (Tamiasciurus Hudsonicus Richardsonii), D. Cary, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Biotelemetry Xi: Proceedings Of The Eleventh International Symposium On Biotelemetry, Charles Amlaner (Editor), Akihiko Uchiyama (Editor) Dec 1990

Biotelemetry Xi: Proceedings Of The Eleventh International Symposium On Biotelemetry, Charles Amlaner (Editor), Akihiko Uchiyama (Editor)

Charles J. Amlaner

Proceedings of the Eleventh International Symposium on Biotelemetry, held in Yokohama, Japan, on August 29 - September 4, 1990.


Biotelemetry And Radio Tracking: A Tutorial Review, Charles Amlaner Dec 1990

Biotelemetry And Radio Tracking: A Tutorial Review, Charles Amlaner

Charles J. Amlaner

No abstract provided.


Deercare: A Deer Population And Hunting Simulation Model, Claude Barnett, David Stewart, Charles Amlaner Apr 1990

Deercare: A Deer Population And Hunting Simulation Model, Claude Barnett, David Stewart, Charles Amlaner

Charles J. Amlaner

No abstract provided.


The Introduction Of Simulation Modeling To Wildlife Management In Arkansas, Charles Amlaner, Claude Barnett, David Stewart Apr 1990

The Introduction Of Simulation Modeling To Wildlife Management In Arkansas, Charles Amlaner, Claude Barnett, David Stewart

Charles J. Amlaner

No abstract provided.