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Norman F Ruby

Explore the profile of Norman F Ruby including associated specialties, affiliations and a list of published articles. Areas
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Articles 39
Citations 1156
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Recent Articles
1.
Steiger A, Farfan J, Fisher N, Heller H, Fernandez F, Ruby N
Front Integr Neurosci . 2022 Jun; 16:900620. PMID: 35694186
We tested the hypothesis that a temporary period of circadian arrhythmia would transiently impair recall of an aversive memory in Siberian hamsters (). Unlike mice or rats, circadian arrhythmia is...
2.
Ruby N
Front Neurosci . 2021 Apr; 15:642376. PMID: 33897354
In this article, I describe the development of the disruptive phase shift (DPS) protocol and its utility for studying how circadian dysfunction impacts memory processing in the hippocampus. The suprachiasmatic...
3.
McMartin L, Kiraly M, Heller H, Madison D, Ruby N
Hippocampus . 2021 Jan; 31(4):422-434. PMID: 33439521
We investigated synaptic mechanisms in the hippocampus that could explain how loss of circadian timing leads to impairments in spatial and recognition memory. Experiments were performed in hippocampal slices from...
4.
Loewke A, Garrett A, Steiger A, Fisher N, Heller H, Colas D, et al.
Clocks Sleep . 2020 Dec; 2(4):523-535. PMID: 33271811
This study examined whether theta oscillations were compromised by the type of circadian disruption that impairs hippocampal-dependent memory processes. In prior studies on Siberian hamsters, we developed a one-time light...
5.
Chuluun B, Pittaras E, Hong H, Fisher N, Colas D, Ruby N, et al.
Neurobiol Sleep Circadian Rhythms . 2020 Mar; 8:100049. PMID: 32195448
The Ts65Dn mouse is a well-studied model of trisomy 21, Down syndrome. This mouse strain has severe learning disability as measured by several rodent learning tests that depend on hippocampal...
6.
Heller H, Ruby N
Handb Exp Pharmacol . 2018 Nov; 253:425-440. PMID: 30443786
The propensity for sleep is timed by the circadian system. Many studies have shown that learning and memory performance is affected by circadian phase. And, of course it is well...
7.
Ruby N, Fisher N, Patton D, Paul M, Fernandez F, Heller H
Sci Rep . 2017 Jul; 7(1):6755. PMID: 28754901
Disruptions in circadian timing impair spatial memory in humans and rodents. Circadian-arrhythmic Siberian hamsters (Phodopus sungorus) exhibit substantial deficits in spatial working memory as assessed by a spontaneous alternation (SA)...
8.
Fernandez F, Nyhuis C, Anand P, Demara B, Ruby N, Spano G, et al.
Sleep Med . 2017 Apr; 33:134-144. PMID: 28449894
Objectives: To evaluate sleep consolidation and circadian activity rhythms in infants and toddlers with Down syndrome (DS) under light and socially entrained conditions within a familiar setting. Given previous human...
9.
Frank M, Ruby N, Heller H, Franken P
Sleep . 2017 Apr; 40(3). PMID: 28364421
Study Objectives: To better understand the development of sleep, we characterized the development of circadian rhythms in sleep and wakefulness in the artificially-reared, isolated rat pup using an experimental design...
10.
Ruby N, Patton D, Bane S, Looi D, Heller H
J Biol Rhythms . 2015 Jul; 30(5):408-16. PMID: 26224657
Compression of the active phase (α) during reentrainment to phase-shifted light-dark (LD) cycles is a common feature of circadian systems, but its functional consequences have not been investigated. This study...