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Dormivigilia
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by Allison in Dormivigilia
Recent progress in neuroscience suggests that athlete's are the masters of mind over matter, expending less brain energy while focusing more intently on motor procedural tasks compared to sedentary controls. ... Read more »
Galea, J., & Celnik, P. (2009) Brain Polarization Enhances the Formation and Retention of Motor Memories. Journal of Neurophysiology, 102(1), 294-301. DOI: 10.1152/jn.00184.2009
by Allison in Dormivigilia
In this week's Journal of Neuroscience, European researchers have recognized that though humans are innately endowed with handedness, owing to a greater, hemispheric-specific distribution of cortical matter within the premotor cortex, this unequal cortical distribution can be modified post-birth through deliberate practice, producing either ambidexterity or anti-handedness (if of course, practice is maintained).... Read more »
Stefan Klo¨ppel, Jean-Francois Mangin, Anna Vongerichten, Richard S. J. Frackowiak,and Hartwig R. Siebner. (2010) Nuture versus Nature: Long-Term Impact of Forced Right-Handedness on Structure of Pericentral Cortexand Basal Ganglia. Journal of Neuroscience, 30(9), 3271-3275. info:/10.1523/JNEUROSCI.4394-09.2010
by Allison in Dormivigilia
This week in Neuro Journal Club, I discussed a recent Journal of Neuroscience publication finding high activation of attentional and premotor planning areas of the brain during the recall of basketball game plays in avid Duke and UNC fans. The Duke fans had faster recall vs. the UNC fans, despite no differences in activation intensity within these brain areas.
... Read more »
Botzung, A., Rubin, D., Miles, A., Cabeza, R., & LaBar, K. (2010) Mental Hoop Diaries: Emotional Memories of a College Basketball Game in Rival Fans. Journal of Neuroscience, 30(6), 2130-2137. DOI: 10.1523/JNEUROSCI.2481-09.2010
by Allison in Dormivigilia
Elucidating Sleep and Reward Centers
March 1, 2010 - Author: Allison
It is rare for one to see an empirical article in a moderately-impactful journal, such as SLEEP, that solely reports about one case study (let alone have multiple affiliations……can we say out-sourcing/contracting the work?). I can overlook the extremely small sample size, however, because this study may help my lab elucidate a reciprocal relationship between sleep/wake and reward centers of the brain and relat........ Read more »
Smaranda Leu-Semenescu; Isabelle Arnulf; Caroline Decaix; Fathi Moussa; Fabienne Clot; Camille Boniol; Yvan Touitou; Richard Levy; Marie Vidailhet; Emmanuel Roze. (2010) Sleep and Rhythm Consequences of a Genetically Induced Loss of Serotonin. SLEEP, 33(3), 307-314. info:/
by Allison in Dormivigilia
Researchers at McGill have elucidated epigenetic contributions to suicidal attempts in individuals who were abused/neglected during childhood. These individuals have hyper DNA methylation, particularly within the hippocampus. These researchers also discovered that this suicide risk is also potentiated by reduced glucocorticoid receptor expression. ... Read more »
McGowan, P., Sasaki, A., D'Alessio, A., Dymov, S., Labonté, B., Szyf, M., Turecki, G., & Meaney, M. (2009) Epigenetic regulation of the glucocorticoid receptor in human brain associates with childhood abuse. Nature Neuroscience, 12(3), 342-348. DOI: 10.1038/nn.2270
by Allison in Dormivigilia
A review of Thursday's Guze Symposium on disentangling the genetics of alcoholism, sponsored by the Washington University of St. Louis School of Medicine in honor of Samuel Guze, a pioneer in the field of alcohol abuse and alcoholism.... Read more »
Crabbe, J., Phillips, T., Harris, R., Arends, M., & Koob, G. (2006) Alcohol-related genes: contributions from studies with genetically engineered mice. Addiction Biology, 11(3-4), 195-269. DOI: 10.1111/j.1369-1600.2006.00038.x
by Allison in Dormivigilia
Researchers have identified the functional significance of developing ependymal cells that line the ventricular system. Disruption of the ciliary beating of these cells perturbs the circulation of cerebral spinal fluid within the ventricles and may lead to fluid retention in the head,which is typically fatal.... Read more »
Mirzadeh, Z., Han, Y., Soriano-Navarro, M., Garcia-Verdugo, J., & Alvarez-Buylla, A. (2010) Cilia Organize Ependymal Planar Polarity. Journal of Neuroscience, 30(7), 2600-2610. DOI: 10.1523/JNEUROSCI.3744-09.2010
by Allison in Dormivigilia
Researchers at MIT have identified a gene, DISC1, implicated in the neural and behavioral psychopathology of schizophrenia.... Read more »
Mao Y, Ge X, Frank CL, Madison JM, Koehler AN, Doud MK, Tassa C, Berry EM, Soda T, Singh KK.... (2009) Disrupted in schizophrenia 1 regulates neuronal progenitor proliferation via modulation of GSK3beta/beta-catenin signaling. Cell, 136(6), 1017-31. PMID: 19303846
by Allison in Dormivigilia
Swiss researchers have discovered that bright sunlight exposure can elicit 'photic sneezing" which is characterized by the co-recruitment/hyperactivation of visual and somatosensory cortices. Though the researchers define it as a reflex, it is an anomalous reflex in that it requires activation of cortex unlike the classical knee-jerk reflex and others which only necessitate the activation of spinal cord interneurons ... Read more »
Nicolas Langer*, Gian Beeli, Lutz Jäncke. (2010) When the Sun Prickles Your Nose: An EEG Study Identifying Neural Bases of Photic Sneezing. PLoS ONE, 5(2). info:/10.1371/journal.pone.0009208
by Allison in Dormivigilia
The March issue of Experimental Physiology highlights articles relevant to particular sports of the Winter Olympic Games of which I will feature in the upcoming weeks.....let the games begin!!... Read more »
Stuart Egginton and Michael J.White. (2010) 2010 Winter Games Themed Issue. Experimental Physiology, 95(3), 402-403. info:/10.1113/expphysiol.2009.047530
by Allison in Dormivigilia
Scientists have localized and dissected the function of neural oscillators controlling rhythmic crawling in medicinal leeches. ... Read more »
Puhl, J., & Mesce, K. (2010) Keeping It Together: Mechanisms of Intersegmental Coordination for a Flexible Locomotor Behavior. Journal of Neuroscience, 30(6), 2373-2383. DOI: 10.1523/JNEUROSCI.5765-09.2010
by Allison in Dormivigilia
With a departmental initiative to hire new tenure-track neuroscientists/psychopathologists, I highlight today's job seminar given by Dr. Jilla Sabeti of The Scripps Institute and attach her respective paper. ... Read more »
Sabeti, J., & Gruol, D. (2008) Emergence of NMDAR-independent long-term potentiation at hippocampal CA1 synapses following early adolescent exposure to chronic intermittent ethanol: Role for sigma-receptors. Hippocampus, 18(2), 148-168. DOI: 10.1002/hipo.20379
by Allison in Dormivigilia
Using fMRI, researchers have found that men are most attracted to women with a waist-to-hip ratio of 0.7. Using neuroimaging as a methodology to study human attraction, in my opinion, is a fantastic to establish a new branch of human ual behavior research. ... Read more »
Steven M. Platek, Devendra Singh. (2010) Optimal Waist-to-Hip Ratios in Women Activate Neural Reward Centers in Men. PLOS One, 5(2). info:/
by Allison in Dormivigilia
Neural stem/progenitor cells have been co-grafted with growth factors into damaged spinal cord tissue. Prior to this, the tissue was infused with an enzyme that not only reduces chondroitin sulfate proteoglycans, which appear in the CNS following damage, but also increases the survival of the neural stem cells. The article can be found in this week's Journal of Neuroscience... Read more »
Soheila Karimi-Abdolrezaee, Eftekhar Eftekharpour, Jian Wang, Desiree Schut, and Michael G. Fehlings. (2010) Synergistic Effects of Transplanted Adult Neural Stem/Progenitor Cells, Chondroitinase, and Growth Factors Promote Functional Repair and Plasticity of the Chronically Injured Spinal Cord. Journal of Neuroscience. info:/10.1523/JNEUROSCI.3111-09.2010
by Allison in Dormivigilia
Syrian hamsters are not the only animals that can "drink you under the table." Frugivorous fruit bats have a high tolerance for alcohol in that marked alcohol consumption does not impair flying and/or echolocation. This high alcohol tolerance, of course, is attributed to fermented fruits being a diet staple.... Read more »
Dara N. Orbach, Nina Veselka, Yvonne Dzal, Louis Lazure, M. Brock Fenton. (2010) Drinking and Flying: Does Alcohol Consumption Affect the Flight and Echolocation Performance of Phyllostomid Bats? . PLOS One, 5(2). info:/10.1371/journal.pone.0008993
by Allison in Dormivigilia
Stanfordian scientists have attributed age-related financial risks with differential accumbal activity. Honestly, this begs a philosophical conversation of how we can control financial risks of the elderly without jeopardizing their basic human rights.... Read more »
Samanez-Larkin, G., Kuhnen, C., Yoo, D., & Knutson, B. (2010) Variability in Nucleus Accumbens Activity Mediates Age-Related Suboptimal Financial Risk Taking. Journal of Neuroscience, 30(4), 1426-1434. DOI: 10.1523/JNEUROSCI.4902-09.2010
by Allison in Dormivigilia
Preterm infants who listened to Mozart or other Western classical music had improved weight gain. ... Read more »
Lubetzky, R., Mimouni, F., Dollberg, S., Reifen, R., Ashbel, G., & Mandel, D. (2009) Effect of Music by Mozart on Energy Expenditure in Growing Preterm Infants. PEDIATRICS, 125(1). DOI: 10.1542/peds.2009-0990
by Allison in Dormivigilia
Scientists uncovered perforated Pecten shells containing red-to-black pigments suggesting that Neanderthals were equally as materialistic... Read more »
Zilhao, J., Angelucci, D., Badal-Garcia, E., d'Errico, F., Daniel, F., Dayet, L., Douka, K., Higham, T., Martinez-Sanchez, M., Montes-Bernardez, R.... (2010) Symbolic use of marine shells and mineral pigments by Iberian Neandertals. Proceedings of the National Academy of Sciences, 107(3), 1023-1028. DOI: 10.1073/pnas.0914088107
by Allison in Dormivigilia
Researchers have discovered a mutation encoding for memory formation in Drosophila (radish) that elicits attention-like deficit symptoms which can subsequently be treated with Ritalin... Read more »
Owens JA. (2005) The ADHD and sleep conundrum: a review. Journal of developmental and behavioral pediatrics : JDBP, 26(4), 312-22. PMID: 16100507
van Swinderen B, & Brembs B. (2010) Attention-like deficit and hyperactivity in a Drosophila memory mutant. The Journal of neuroscience : the official journal of the Society for Neuroscience, 30(3), 1003-14. PMID: 20089909
Shaw, P. (2000) Correlates of Sleep and Waking in Drosophila melanogaster. Science, 287(5459), 1834-1837. DOI: 10.1126/science.287.5459.1834
by Allison in Dormivigilia
Even E.Coli clocks "Twitter." Dr. Martin Fussenegger reviews in a recent Nature News & Views... Read more »
Fussenegger, M. (2010) Synthetic biology: Synchronized bacterial clocks. Nature, 463(7279), 301-302. DOI: 10.1038/463301a
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