Post List

  • May 3, 2010
  • 03:39 AM

Spatial learning sculpts the dendritic arbor of adult-born hippocampal neurons

by Jason Snyder in Functional Neurogenesis

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  

  • May 3, 2010
  • 03:21 AM

Practice makes perfect

by pm in The Poor Man's Smart Bomb

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 »

  • May 3, 2010
  • 02:44 AM

Getting to grips with ecological interactions

by Jeremy in Agricultural Biodiversity Weblog

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  

  • May 2, 2010
  • 09:07 PM

The Genetics of DCC, Netrin & Mirror Movements Discovered

by in

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  

  • May 2, 2010
  • 06:42 PM

Boozing Treeshrews: Heavyweight drinkers in small packages

by Anne-Marie Hodge in Endless Forms

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  

  • May 2, 2010
  • 03:38 PM

The Basics of Chimp Technology

by Laura Klappenbach in About Animals / Wildlife

"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 »

McGrew, W. (2010) Chimpanzee Technology. Science, 328(5978), 579-580. DOI: 10.1126/science.1187921  

  • May 2, 2010
  • 02:15 PM

A blast from a black hole’s past

by sarah in One Small Step

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 »

  • May 2, 2010
  • 01:04 PM

“My DNA is running out”

by Lucas in thoughtomics

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 »

Gilson, E., & Géli, V. (2007) How telomeres are replicated. Nature Reviews Molecular Cell Biology, 8(10), 825-838. DOI: 10.1038/nrm2259  

  • May 2, 2010
  • 01:00 PM

Modelling Virotherapy for Cancer

by Lab Rat in Lab Rat

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 »

  • May 2, 2010
  • 09:52 AM

Basic emotions: the eight stage model fits again!

by sandygautam in The Mouse Trap

Image via Wikipedia

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 »

  • May 2, 2010
  • 08:58 AM

Prozac and the Killer

by Neuroskeptic in Neuroskeptic

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:/

  • May 2, 2010
  • 12:51 AM

Straight-Acting, Self-Loathing Gay Men

by Ultimo167 in Strong Silent Types

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  

  • May 2, 2010
  • 12:00 AM

Plastic ideals: toys you shouldn't give your kids

by Alex Reid in The Golden Dalek

Two articles are discussed which focus on the discrepancy between the body shapes of children's toys and reality.... Read more »

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  

Norton, K., Olds, T., Olive, S., & Dank, S. (1996) Ken and Barbie at life size. Sex Roles, 34(3-4), 287-294. DOI: 10.1007/BF01544300  

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:/

  • May 1, 2010
  • 07:10 PM

Asteroids likely source of Earth’s water

by Akshat Rathi in Contemplation

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  

  • May 1, 2010
  • 05:20 PM

Religious teens start drinking later, but not because they're religious!

by Tom Rees in Epiphenom

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 »

  • May 1, 2010
  • 12:16 PM

Teaching About Diet and Exercise Promotes Anti-Fat Bias

by Dr. Arya Sharma in Dr. Sharma's Obesity Notes

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 »

  • May 1, 2010
  • 11:31 AM

How Red Crabs Get In Shape Without Breaking A Sweat

by Christie Wilcox in Observations of a Nerd

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 »

  • May 1, 2010
  • 08:00 AM

Societal Assumptions on Abuse and the Victim’s Perspective

by Shaheen Lakhan in Brain Blogger

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 »

Loftus, E., & Frenda, S. (2010) Bad Theories Can Harm Victims. Science, 327(5971), 1329-1330. DOI: 10.1126/science.1187716  

  • May 1, 2010
  • 06:33 AM

« An Ethnographic Seduction »: our article published on the Bulletin of Sociological Methodology

by ---a in

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 »

  • May 1, 2010
  • 05:35 AM

Corruption at health institution

by Bernt Lindtjorn in International Health Research

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 »

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