Dendrites are the extensions of neurons that receive incoming information. Neurons have primary dendrites that further split off into secondary and tertiary dendritic branches. On each of these branches are thousands of synaptic connections with axons of neurons carrying incoming information. The result is a dendritic tree that is capable of receiving and integrating a wide array [...]... Read more »
Tronel S, Fabre A, Charrier V, Oliet SH, Gage FH, & Abrous DN. (2010) Spatial learning sculpts the dendritic arbor of adult-born hippocampal neurons. Proceedings of the National Academy of Sciences of the United States of America, 107(17), 7963-8. PMID: 20375283
Michael Kenney’s recent article in Terrorism and Political Violence is one of the most level-headed assessments of the threat posed by so-called ‘homegrown’ violent jihadists I have read. As Kenney points out, a lot of the researchers and pundits working in the terrorism field tend to (incorrectly) associate the possession of technical knowledge ‘artifacts’ with … Read more... Read more »
Kenney, M. (2010) Beyond the Internet: Metis, Techne, and the Limitations of Online Artifacts for Islamist Terrorists. Terrorism and Political Violence, 22(2), 177-197. DOI: 10.1080/09546550903554760
Something just in from our occasional contributor Jacob van Etten.
Climate change will shift the limits of the suitable areas of many wild animals and plants, including crop wild relatives. Some species may adapt by gradually moving into areas which resemble their current home area. In other cases, no bridges exist to connect old and new [...]... Read more »
Gilman, S., Urban, M., Tewksbury, J., Gilchrist, G., & Holt, R. (2010) A framework for community interactions under climate change. Trends in Ecology . DOI: 10.1016/j.tree.2010.03.002
From Nobel Intent comes news of a discovery in the Mendelian genetics of Mirror Movements, a condition that causes people to involuntarily move both sides of their body when they intended to only move one. Aside from being medically relevant, interesting on a population genetics level, and involved an Iranian family, it also caught my [...]... Read more »
Srour M, Rivière JB, Pham JM, Dubé MP, Girard S, Morin S, Dion PA, Asselin G, Rochefort D, Hince P.... (2010) Mutations in DCC cause congenital mirror movements. Science (New York, N.Y.), 328(5978), 592. PMID: 20431009
Although political and moral stances on alcohol use have gone back and forth over the decades, anthropological studies suggest that low-level alcohol ingestion has been an important factor in primate evolution. Alcohol is associated with ripe, nutrient-rich fruits, in addition...... Read more »
Wiens, F., Zitzmann, A., Lachance, M., Yegles, M., Pragst, F., Wurst, F., von Holst, D., Guan, S., & Spanagel, R. (2008) Chronic intake of fermented floral nectar by wild treeshrews. Proceedings of the National Academy of Sciences, 105(30), 10426-10431. DOI: 10.1073/pnas.0801628105
"The chimpanzee uses the objects of his environment as tools to a greater extent than any other living animal with the exception of man himself." ~ Jane Goodall, In the Shadow of Man
It's been nearly 50 years since Jane Goodall made the observations that inspired these words. Today, they are still true—chimpanzees are second only to humans in the variety of tools they use and the innovative ways they employ those tools.
Since Jane Goodall's pioneering work began in the early 1960s, she ........ Read more »
For over a decade, through the ingenious tracking of stellar orbits in the galactic centre, we’ve known that a supermassive black hole weighing the equivalent of several million solar masses is lurking at the centre of our galaxy. But this discovery, while offering us the tantalising opportunity to study these enigmatic objects in our own [...]... Read more »
Gabriele Ponti, Regis Terrier, Andrea Goldwurm, Guillaume Belanger, & Guillaume Trap. (2010) Discovery of a superluminal Fe K echo at the Galactic Center: The glorious past of Sgr A* preserved by molecular clouds. ApJ . arXiv: 1003.2001v1
Sunyaev, R., & Churazov, E. (1998) Equivalent width, shape and proper motion of the iron fluorescent line emission from molecular clouds as an indicator of the illuminating source X-ray flux history. Monthly Notices of the Royal Astronomical Society, 297(4), 1279-1291. DOI: 10.1046/j.1365-8711.1998.01684.x
Contrary to popular belief, music and science are a match made in heaven. Advertisers know that cheesy viral music videos are the best way to target a scientific demographic. And don’t rule out scientists themselves! There are a lot of nerdy and talented composers and singers out there.
Unfortunately, more traditional musicians don’t seem to care [...]... Read more »
Drenth JP, & Waxman SG. (2007) Mutations in sodium-channel gene SCN9A cause a spectrum of human genetic pain disorders. The Journal of clinical investigation, 117(12), 3603-9. PMID: 18060017
Most cancer-related research, particularly medical cancer-related research tends for rather obvious reasons to involve animal research, and while I'm more than willing to agree that it's a necessary sacrifice it does always make me feel a bit squeamish on a personal level. Which was why the first thing that struck me when a certain jazz-playing poetry-writing philosopher-doctor sent this paper my way was that it was involved in developing a mathematical model for treatments. Not to replace anima........ Read more »
Friedman, A. (2006) Glioma Virotherapy: Effects of Innate Immune Suppression and Increased Viral Replication Capacity. Cancer Research, 66(4), 2314-2319. DOI: 10.1158/0008-5472.CAN-05-2661
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I had been struggling with the how many and what framework to use for defining the basic emotions and especially as I was sure that there would be eight basic emotions/emotion systems that would lie on a eight fold evolutionary path/model.
Basic emotions research is fraught with many researchers claiming different types of More >Rating: 0.0/10 (0 votes cast)
Related posts:Maslow’s eight basic needs and the eight stage devlopmental model ........ Read more »
Panksepp, J. (2000) The neuro-evolutionary cusp between emotions and cognitions: Implications for understanding consciousness and the emergence of a unified mind science. Consciousness , 1(1), 15-54. DOI: 10.1075/ce.1.1.04pan
Uh-oh, here's a troubling paper: Effects of selective serotonin reuptake inhibitors on motor neuron survival.According to Anderson et al,Motor neurons were challenged with fluoxetine and paroxetine at clinically relevant doses ... In fluoxetine-treated motor neurons there was ~52% cell death while in paroxetine-treated cells there was 14% cell survival.... Both SSRIs decreased cell survival in a dose-dependent manner. This study is provocative enough to call for further in vivo studies.Stan........ Read more »
Lily B Anderson,, Phaedra B Anderson,, Thea B Anderson,, Amy Bishop,, & James Anderson. (2009) Effects of selective serotonin reuptake inhibitors on motor neuron survival. International Journal of General Medicine, 109-115. info:/
Sanchez et al. (2010) surveyed 622 gay men, finding that we know so little about how masculinity influences such men, even though many such men worry about masculinity, incessantly. Hence, it could be that the beast that is the 'straight-acting' gay man has been allowed to roam free without much notice, for far too long now.... Read more »
Sánchez, F., Westefeld, J., Liu, W., & Vilain, E. (2010) Masculine gender role conflict and negative feelings about being gay. Professional Psychology: Research and Practice, 41(2), 104-111. DOI: 10.1037/a0015805
Two articles are discussed which focus on the discrepancy between the body shapes of children's toys and reality.... Read more »
Dittmar, H., Halliwell, E., & Ive, S. (2006) Does Barbie make girls want to be thin? The effect of experimental exposure to images of dolls on the body image of 5- to 8-year-old girls. Developmental Psychology, 42(2), 283-292. DOI: 10.1037/0012-16220.127.116.113
Pope HG Jr, Olivardia R, Gruber A, & Borowiecki J. (1999) Evolving ideals of male body image as seen through action toys. The International journal of eating disorders, 26(1), 65-72. PMID: 10349585
Pope, H. G., Olivardia, R., Gruber, A. J., . (1999) Evolving ideals of the male body as seen through action toys. International Journal of Eating Disorders. info:/
Bad Science examples from the media: Indian Express, April 29, 2010 Ice asteroids likely source of Earth’s water: Study Astronomers have for the first time detected ice and organic compounds on an asteroid, a pair of landmark studies. The discovery … Continue reading →... Read more »
Meli, V., Ghosh, S., Prabha, T., Chakraborty, N., Chakraborty, S., & Datta, A. (2010) Enhancement of fruit shelf life by suppressing N-glycan processing enzymes. Proceedings of the National Academy of Sciences, 107(6), 2413-2418. DOI: 10.1073/pnas.0909329107
New research confirms that religious teens in the US start drinking slightly later than non-religious ones, but that this probably is nothing to do with their religious beliefs.Kathryn Paige Harden (University of Texas) did this by looking not only at individual teens, but also at their brothers and sisters. Some of them were identical twins, but others ranged in genetic relatedness from normal siblings to half-siblings (i.e. one parent different) to cousins to adopted (unrelated).Using this da........ Read more »
Harden, K. (2010) Does religious involvement protect against early drinking? A behavior genetic approach. Journal of Child Psychology and Psychiatry. DOI: 10.1111/j.1469-7610.2010.02247.x
Perhaps one reason why health professionals are particularly prone to anti-fat prejudice, may be because conventional health education curricula tend to focus primarily on the importance of “controllable” lifestyle reasons for obesity, with health promotion/public health programs typically emphasizing dieting and physical activity as the cornerstones of obesity treatment and prevention.... Read more »
O'Brien KS, Puhl RM, Latner JD, Mir AS, & Hunter JA. (2010) Reducing Anti-Fat Prejudice in Preservice Health Students: A Randomized Trial. Obesity (Silver Spring, Md.). PMID: 20395952
Once a year, Christmas Island experiences a red tide completely unlike any other in the world. The roads are blockaded as a swarm of Christmas Island Red Crabs (Gecarcoidea natalis), one hundred million strong, makes its way from the forests to the sea. This massive migration is fueled by the strongest urge an animal has: to reproduce. They must travel from their forest homes to the sea to spawn. The drive is so strong that the crabs will crawl their way onto, into and over whatever they must to........ Read more »
Postel, U., Thompson, F., Barker, G., Viney, M., & Morris, S. (2010) Migration-related changes in gene expression in leg muscle of the Christmas Island red crab Gecarcoidea natalis: seasonal preparation for long-distance walking. Journal of Experimental Biology, 213(10), 1740-1750. DOI: 10.1242/jeb.033829
Sexual abuse of children is morally revolting and a topic wrought with emotions. In the past few decades, awareness of the prevalence of child abuse and its psychological repercussions has increased. A “trauma model” has been built around sexual abuse that perceives it as being directly traumatic and frightening, and necessarily damaging.
Many psychologists now argue [...]... Read more »
So here it is, our little « manifesto for qualitative agent-based simulation » is finally out on the now Sage-published Bulletin of Sociological Methodology/Bulletin de Méthodologie Sociologique. It is just worth stressing the importance of this article in our present research: our effort has been to really provide a comprehensive framework for underdestanding what it means to [...]... Read more »
Tubaro, P., & Casilli, A. A. (2010) ''An Ethnographic Seduction'': How Qualitative Research and Agent-based Models can Benefit Each Other. Bulletin de Méthodologie Sociologique, 106(1), 59-74. DOI: 10.1177/0759106309360111
Corruption at health institution is a concern in all countries, but it is especially in developing countries where public resources are already scarce.
Countries with high indices of corruption have for example higher rates of infant mortality.
A recent World Bank report from Ethiopia (Lindelow and Serneels 2006) report on “pilfering drugs and materials, informal health care [...]... Read more »
Lindelow, M., & Serneels, P. (2006) The performance of health workers in Ethiopia: Results from qualitative research. Social Science , 62(9), 2225-2235. DOI: 10.1016/j.socscimed.2005.10.015
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