منابع مشابه
Effects of the duper mutation on circadian responses to light.
The circadian mutation duper in Syrian hamsters shortens the free-running circadian period (τ(DD)) by 2 hours when expressed on a tau mutant (τ(ss)) background and by 1 hour on a wild-type background. We have examined the effects of this mutation on phase response curves and entrainment. In contrast to wild types, duper hamsters entrained to 14L:10D with a positive phase angle. Super duper hams...
متن کاملIncreased photic sensitivity for phase resetting but not melatonin suppression in Siberian hamsters under short photoperiods.
Light regulates a variety of behavioral and physiological processes, including activity rhythms and hormone secretory patterns. Seasonal changes in the proportion of light in a day (photoperiod) further modulate those functions. Recently, short (SP) versus long days (LP) were found to markedly increase light sensitivity for phase shifting in Syrian hamsters. To our knowledge, photoperiod effect...
متن کاملDiscontinuities in phase-resetting experiments.
The effects of perturbing an on-going biological oscillation with a single brief stimulus are considered. If the time from some observable event before the stimulus to the next event after the stimulus is plotted as a function of the phase of the stimulus, then there may be discontinuities in this plot. The discontinuities reflect the size of the stimulus and the topological properties of the b...
متن کاملMultipulse phase resetting curves.
In this paper, we introduce and study systematically, in terms of phase response curves, the effect of dual-pulse excitation on the dynamics of an autonomous oscillator. Specifically, we test the deviations from linear summation of phase advances resulting from two small perturbations. We analytically derive a correction term, which generally appears for oscillators whose intrinsic dimensionali...
متن کاملMulti-pulse phase resetting curve
Giri P. Krishnan,1, 2 Maxim Bazhenov,1 and Arkady Pikovsky2 1Department of Cell Biology and Neuroscience, University of California, Riverside CA, USA 2Department of Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany (Dated: May 7, 2014) Abstract In this paper, we introduce and systematically study, in terms of phase response curves (PRC), the effect of a dual pulse excitation ...
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ژورنال
عنوان ژورنال: Journal of Biological Rhythms
سال: 2015
ISSN: 0748-7304,1552-4531
DOI: 10.1177/0748730414568297