Post List

  • March 17, 2010
  • 05:52 PM
  • 1,131 views

On the Origin of Animals

by Lucas in thoughtomics

Think of an animal – any animal you’d like. Unless you’re a big fan of sponges or jellyfish, you likely thought of an animal that belongs to the Bilateria. This group includes all animals that show bilateral symmetry, so every single insect, vertebrate and mollusk belongs to this group. Like in any large family, some [...]... Read more »

Christodoulou, F., Raible, F., Tomer, R., Simakov, O., Trachana, K., Klaus, S., Snyman, H., Hannon, G., Bork, P., & Arendt, D. (2010) Ancient animal microRNAs and the evolution of tissue identity. Nature, 463(7284), 1084-1088. DOI: 10.1038/nature08744  

  • March 17, 2010
  • 05:13 PM
  • 1,464 views

Quartz, Cretan handaxes and Paleolithic seafaring

by Julien Riel-Salvatore in A Very Remote Period Indeed

A couple of months ago, I posted on the recent discovery of quartz hand axes on Crete by Strasser and Runnels. That post spurred quite a bit of discussion, and I also provided some additional thoughts shortly thereafter, based on the colonization of Cyprus. Since then, we've learned that these implements will be described in detail in the June issues of the journal Hesperia, and some decent photographs of some of the implements in question were published, which provides some more convincing data........ Read more »

  • March 17, 2010
  • 02:28 PM
  • 1,274 views

The Irish Diaspora: Why Even Trinidadians Are a Little Irish

by Krystal D'Costa in Anthropology in Practice

Happy St. Paddy's Day! This Irish national holiday celebrates Patrick who is—arguably—the most recognizable of Irish saints, known for championing Irish Christianity (while using a shamrock to explain the Holy Trinity). The observance has also been viewed as a one day break from the abstinence of the Lenten season. While it still has religious undertones, for a vast majority of people, St.

... Read more »

Rodgers, Nini. (2007) The Irish in the Caribbean 1641-1837: An Overview. Irish Migration Studies in Latin America, 5(3), 145-156. info:/

  • March 17, 2010
  • 01:53 PM
  • 1,121 views

Leptin Resurrected: Leptin Therapy in Type I Diabetes

by Kari Kenefick in Promega Connections

An online science news item jumped out at me the other day, news about leptin and it’s potential use in type I diabetes. While leptin was certainly familiar, it’s recollection brought vague feelings of disappointment. Wasn’t leptin the naturally occurring fat burning compound that was going to make us all thin?

In case you too are [...]... Read more »

Wang MY, Chen L, Clark GO, Lee Y, Stevens RD, Ilkayeva OR, Wenner BR, Bain JR, Charron MJ, Newgard CB.... (2010) Feature Article: Leptin therapy in insulin-deficient type I diabetes. Proceedings of the National Academy of Sciences of the United States of America. PMID: 20194735  

  • March 17, 2010
  • 12:05 PM
  • 1,506 views

Painting lines on the playground - easiest physical activity intervention. EVER.

by Travis Saunders, MSc in Obesity Panacea

In most developed nations, kids get far less physical activity than they did just a few generations ago. Given the strong links between physical inactivity and health risk (and given that we're now seeing "adult" diseases like heart disease and type 2 diabetes in children and teenagers), this has become a very real public health concern. Unfortunately, when it comes to increasing childhood physical activity levels, people often want to reinvent the wheel. For example, many peop........ Read more »

  • March 17, 2010
  • 11:33 AM
  • 415 views

Sleep Less, Read More?

by agoldstein in WiSci

Short sleepers habitually read more for pleasure, study finds.... Read more »

He Y, Jones CR, Fujiki N, Xu Y, Guo B, Holder JL Jr, Rossner MJ, Nishino S, & Fu YH. (2009) The transcriptional repressor DEC2 regulates sleep length in mammals. Science (New York, N.Y.), 325(5942), 866-70. PMID: 19679812  

  • March 17, 2010
  • 11:00 AM
  • 1,568 views

Indigenous people have smaller ecological footprint on Amazon than colonists

by Rob Goldstein in Conservation Maven

A new study in the journal Conservation Biology shows that indigenous people in the northern Ecuadorian Amazon have a lower impact on the rainforest than the colonists who have moved into the area.

This bodes ill for conservation of the Amazon rainforest given the increasing settlement of the region by outsiders, the expansion of the agricultural frontier, and cultural changes in indigenous communities.... Read more »

LU, F., GRAY, C., BILSBORROW, R., MENA, C., ERLIEN, C., BREMNER, J., BARBIERI, A., & WALSH, S. (2010) Contrasting Colonist and Indigenous Impacts on Amazonian Forests. Conservation Biology. DOI: 10.1111/j.1523-1739.2010.01463.x  

  • March 17, 2010
  • 10:52 AM
  • 767 views

Same-Sex Attraction Does Not Increase Suicide Risk...

by Ultimo167 in Strong Silent Types

A slightly convoluted but ultimately worthwhile study by Zhao et al. (2010), in which they both challenge the proposition that same-sex attraction leads to greater suicide risk, as well as plead with us all to stop thinking of GLB (their term) and its numerous alternatives, as one enormous homogenised blob. Their word of choice is 'oversimplify' (p.105).
... Read more »

  • March 17, 2010
  • 10:36 AM
  • 1,082 views

Nature Takes One Back from Nurture

by Rob Mitchum in ScienceLife

Ah, nature and nurture, those eternal enemies. What once used to be the domain of philosophy and English classes has migrated over the past century to the sphere of science, culminating in the completion of The Human Genome Project in 2003. But far from settling this age-old battle, the HGP may have reinvigorated it. Now [...]... Read more »

Zhang, D., Cheng, L., Badner, J., Chen, C., Chen, Q., Luo, W., Craig, D., Redman, M., Gershon, E., & Liu, C. (2010) Genetic Control of Individual Differences in Gene-Specific Methylation in Human Brain. The American Journal of Human Genetics, 86(3), 411-419. DOI: 10.1016/j.ajhg.2010.02.005  

  • March 17, 2010
  • 10:01 AM
  • 784 views

Dopamine and theory of mind: another autism/schizophrenia dichotomy

by sandygautam in The Mouse Trap






Image via Wikipedia



There is an article in press in Neuropsyhcologia by Lackner et al that related Dopamine (DA) levels as measured by Eye Blink Rate (EBR) to preschoolers (3-5 yrs old) Representational theory of Mind (RTM).
The authors hypothesized that as one of the neural correlates of RTM is dMPFC, and as dMPFC has dopamine receptors More >Rating: 0.0/10 (0 votes cast)


Related posts:The Mind – Brain dichotomy: What it means to have a mind Researchers at Harvard, Gray et a........ Read more »

  • March 17, 2010
  • 09:55 AM
  • 700 views

Nest making, oxytocin, and social bonding

by The Dog Zombie in The Dog Zombie

I encountered Nest making and oxytocin comparably promote wound healing in isolation reared rats [1] while reading about how stress affects wound healing, and it drew me in with its lure of drawing connections between nest making and oxytocin. Oxytocin does a lot of things in the body, but what this paper was interested in was its participation in social bonding. You all must already know the coolest story about oxytocin, the story about the two species of voles. The species are almost identic........ Read more »

Vitalo A, Fricchione J, Casali M, Berdichevsky Y, Hoge EA, Rauch SL, Berthiaume F, Yarmush ML, Benson H, Fricchione GL.... (2009) Nest making and oxytocin comparably promote wound healing in isolation reared rats. PloS one, 4(5). PMID: 19436750  

Young, L. (1998) Neuroendocrine bases of monogamy. Trends in Neurosciences, 21(2), 71-75. DOI: 10.1016/S0166-2236(97)01167-3  

  • March 17, 2010
  • 09:15 AM
  • 1,337 views

'Wasabi receptor' is snake's infrared sensor

by Mo in Neurophilosophy

SNAKES have a unique sensory system for detecting infrared radiation, with which they can visualize temperature changes within their immediate environment. Using this special sense, they can image the body heat radiating from warm-blooded animals nearby. This enables them to track their prey quickly and with great accuracy, even in the dark, and to target the most vulnerable parts of the prey's body when they strike. It warns them of the presence of predators, and may also be used to find approp........ Read more »

Gracheva, E., Ingolia, N., Kelly, Y., Cordero-Morales, J., Hollopeter, G., Chesler, A., Sánchez, E., Perez, J., Weissman, J., & Julius, D. (2010) Molecular basis of infrared detection by snakes. Nature. DOI: 10.1038/nature08943  

  • March 17, 2010
  • 09:07 AM
  • 1,425 views

Tip of the Week: Word Add-In for Ontology Recognition

by Jennifer in OpenHelix

In today’s tip I want to make you aware of a tool that I think will help researchers to present their own data and publications in an accurate and universally searchable way. I learned of the resource (UCSDBioLit) through an article in one of my recent BioMed Central article alert emails. This resource allows authors to mark-up their own publications with XML tags AS THEY WRITE their papers. This will allow faster and more accurate semantic searching of their research.
A huge problem in ........ Read more »

Fink, J., Fernicola, P., Chandran, R., Parastatidis, S., Wade, A., Naim, O., Quinn, G., & Bourne, P. (2010) Word add-in for ontology recognition: semantic enrichment of scientific literature. BMC Bioinformatics, 11(1), 103. DOI: 10.1186/1471-2105-11-103  

  • March 17, 2010
  • 08:21 AM
  • 1,853 views

Gender-Bending Chickens: Mixed, Not Scrambled

by GrrlScientist in Maniraptora

SUMMARY: Sexual identity is genetically imposed on male and female chicken cells at fertilization and is the major factor in determining the adult sexual phenotype -- gonads have limited effects on the avian sexual phenotype... Read more »

Zhao, D., McBride, D., Nandi, S., McQueen, H., McGrew, M., Hocking, P., Lewis, P., Sang, H., & Clinton, M. (2010) Somatic sex identity is cell autonomous in the chicken. Nature, 464(7286), 237-242. DOI: 10.1038/nature08852  

  • March 17, 2010
  • 06:27 AM
  • 1,210 views

Hunkin’s Hypothesis: Technology Is What Makes Us Human

by Duncan Hull in O'Really?

Cartoonist and engineer Tim Hunkin is probably best known for his exhibits at the Science Museum in London and his Under The Pier Show “a mad arcade of home-made slot machines & simulator rides on Southwold Pier, Suffolk”.  His website is a treasure trove of weird and wonderful things.
Tim has an interesting proposition, let’s call [...]... Read more »

  • March 17, 2010
  • 06:25 AM
  • 838 views

700-year-old Brain Found Preserved!

by Neural Outlaw in Neural Interface

Evolutionary psychology tends to receive harsh criticism, and often rightly so. One of the main reasons for this is the severe lack of evidence for many of it's proposals given that the paucity of fossilised brains fails to bolster many a case. And it isn't even anyone's fault. That's just the way it goes sometimes, that the brain is a jelly-like substance that is subject to decay after death, and there's no way we can objectively analyse or verify any differences in brains of long ago with brai........ Read more »

  • March 17, 2010
  • 06:14 AM
  • 592 views

Measles week, Part III: Not the answers

by iayork in Mystery Rays from Outer Space

This is part III of Measles week. In Part II (“Emerging disease”) I talked about the origin of measles; in Part I (“Introduction”), I posed the question of why measles case-fatality rates dropped so dramatically over the first half of the 20th century (example chart of death rates here). Today I’m going to quickly [...]... Read more »

  • March 17, 2010
  • 05:53 AM
  • 939 views

Disclosure of their diagnosis impairs the social functioning of people with schizophrenia

by BPS Research Digest in BPS Research Digest

People don't need to be treated as a stereotype for harm to occur; their mere belief that they could be viewed in a stereotyped fashion is enough - a phenomenon known as 'stereotype threat'. For example, women reminded of the stereotype that men are better at maths tend to perform more poorly in a subsequent maths task, even if they are actually treated fairly. Now Julie Henry and colleagues have extended this line of research to the domain of mental health. They've found that patients with a sc........ Read more »

  • March 17, 2010
  • 05:32 AM
  • 1,005 views

Mmm... Food-Induced Seizures

by Neuroskeptic in Neuroskeptic

In a tasty new paper, British neurologists Kate El Bouzidi et al report on the case of a woman who suffered epileptic seizures whenever she saw, or tasted, food:A 44-year-old right-handed woman was walking in the Scottish highlands. Upon unwrapping her lunch, she had a focal seizure with witnessed onset on the right side of the face and secondary generalization... She was airlifted to hospital. Three weeks later, the smell of food triggered another seizure and she was admitted to the neurology u........ Read more »

El Bouzidi K, Duncan S, Whittle IR, & Butler CR. (2010) Lesional reflex epilepsy associated with the thought of food. Neurology, 74(7), 610-2. PMID: 20157165  

  • March 17, 2010
  • 05:00 AM
  • 1,105 views

Oil exploration causing long-term damage to arctic tundra

by Rob Goldstein in Conservation Maven

Proponents for drilling in the Arctic National Wildlife Refuge in Alaska and government regulators have generally assumed that conducting seismic activities in the winter would avoid damaging the sensitive tundra ecosystem. A new study throws this assumption into doubt...... Read more »

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