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Full-Text Articles in Medicine and Health Sciences
Diurnally Active Rodents For Laboratory Research, Roberto Refinetti, G. J. Kenagy
Diurnally Active Rodents For Laboratory Research, Roberto Refinetti, G. J. Kenagy
Psychological Sciences Faculty Publications and Presentations
Although inbred domesticated strains of rats and mice serve as traditional mammalian animal models in biomedical research, the nocturnal habits of these rodents make them inappropriate for research that requires a model with human-like diurnal activity rhythms. We conducted a literature review and recorded locomotor activity data from four rodent species that are generally considered to be diurnally active, the Mongolian gerbil (Meriones unguiculatus), the degu (Octodon degus), the African (Nile) grass rat (Arvicanthis niloticus), and the antelope ground squirrel (Ammospermophilus leucurus). Our data collected under 12L:12D light-dark cycles confirmed and expanded …
Yoga And Its Influence On Children's Behavior, Paige Sellen
Yoga And Its Influence On Children's Behavior, Paige Sellen
The Eleanor Mann School of Nursing Undergraduate Honors Theses
This study looked at the impact ten minutes of daily yoga had on the behavior of elementary school children. Yoga was led by classroom teachers once daily for ten minutes over a sixteen-week period. At weeks one, eight, and sixteen, classroom teachers evaluated student behavior in six categories: personal awareness, attention, rapport with friends, rapport with teacher, following rules and transition between activities. The teachers rated the behaviors on a never, sometimes, mostly or always scale. The data was then analyzed and interpreted. Results revealed a significant difference in the attention, ability to follow rules, transition between activities, and personal …
Optogenetic Examination Of Salt Taste In Mice, Martin Raymond
Optogenetic Examination Of Salt Taste In Mice, Martin Raymond
Master's Theses and Doctoral Dissertations
This thesis describes a series of experiments designed to evaluate the hypothesis that Type I taste receptor cells play a critical role in the detection and transduction of sodium taste via of epithelial sodium channels (ENaCs). Experiment 1 validated the function of a simple and affordable behavioral apparatus (hardware and software) for testing taste preference and taste aversion in mice. Experiment 2 demonstrated a pharmacological method for rapid induction of salt appetite in mice. Experiment 3 showed that optogenetic stimulation of Type I taste receptor cells (TRCs) in transgenic mice could drive consumption of tap water under conditions of salt …
Mesotocin Influences Pinyon Jay Prosociality, J. F. Duque, W. Leichner, H. Ahmann, Jeffrey R. Stevens
Mesotocin Influences Pinyon Jay Prosociality, J. F. Duque, W. Leichner, H. Ahmann, Jeffrey R. Stevens
Center for Brain, Biology, and Behavior: Faculty and Staff Publications
Many species exhibit prosocial behavior , in which one individual’s actions benefit another individual, often without an immediate benefit to itself. The neuropeptide oxytocin is an important hormonal mechanism influencing prosociality in mammals, but it is unclear whether the avian homologue mesotocin plays a similar functional role in birds. Here, we experimentally tested prosociality in pinyon jays (Gymnorhinus cyanocephalus), a highly social corvid species that spontaneously shares food with others. First, we measured prosocial preferences in a prosocial choice task with two different pay-off distributions: Prosocial trials delivered food to both the subject and either an empty cage …