by Alex in ionpsych
If you see psychology research in the press these days, chances are it comes complete with a pretty fMRI picture, the ones with the brain covered in lights showing which parts are working more. It’s less likely that you’ve seen … Continue reading →... Read more »
Keehner, M., Mayberry, L., & Fischer, M. (2011) Different clues from different views: The role of image format in public perceptions of neuroimaging results. Psychonomic Bulletin . DOI: 10.3758/s13423-010-0048-7
In this week's Science, Greg Miller describes recent uproar about a study that claims to have scientific support for the existence of extrasensory perception (ESP). Of course, ESP being in the realm of the paranormal, it ought to be somewhat outside the purview of Big Science.But who cares about ESP?! What comes under scrutiny is statistics, the mathematical theory underlying hypothesis testing. And inference. The brief story is worth a read, as it cites statisticians on what these statistical t........ Read more »
Miller G. (2011) Statistics. ESP paper rekindles discussion about statistics. Science (New York, N.Y.), 331(6015), 272-3. PMID: 21252321
Pusey, A., Oehlert, G., Williams, J., & Goodall, J. (2005) Influence of Ecological and Social Factors on Body Mass of Wild Chimpanzees. International Journal of Primatology, 26(1), 3-31. DOI: 10.1007/s10764-005-0721-2
Anti-abortion groups, having largely failed to convince the American public that abortion is morally abhorrent, have tried to shift the debate to their concern about women’s health. The same groups who would forbid abortion after rape or incest, or when the mother’s life is endangered claim to be saving women from “post-abortion syndrome”, a mythical [...]... Read more »
Munk-Olsen, T., Laursen, T., Pedersen, C., Lidegaard, �., & Mortensen, P. (2011) Induced First-Trimester Abortion and Risk of Mental Disorder. New England Journal of Medicine, 364(4), 332-339. DOI: 10.1056/NEJMoa0905882
Some protective bacterial strains help defend against a dangerous bacterial infection in mice by producing acetate, which hinders toxin transport into the blood.... Read more »
Fukuda, S., Toh, H., Hase, K., Oshima, K., Nakanishi, Y., Yoshimura, K., Tobe, T., Clarke, J. M., Topping, D. L., Suzuki, T.... (2011) Bifidobacteria can protect from enteropathogenic infection through production of acetate. Nature, 469(7331), 543-547. DOI: 10.1038/nature09646
Imagine a rhinoceros. For the sake of argument, let’s say it’s a white rhinoceros. Don’t worry if you can’t envision every little anatomical flourish in your mind. We’re going to modify this beast a bit.
First thing’s first – lose the horn. We have no use for it. Next, lengthen the neck a bit. Not too [...]... Read more »
Smith, F., Boyer, A., Brown, J., Costa, D., Dayan, T., Ernest, S., Evans, A., Fortelius, M., Gittleman, J., Hamilton, M.... (2010) The Evolution of Maximum Body Size of Terrestrial Mammals. Science, 330(6008), 1216-1219. DOI: 10.1126/science.1194830
Burness, G. (2001) Dinosaurs, dragons, and dwarfs: The evolution of maximal body size. Proceedings of the National Academy of Sciences, 98(25), 14518-14523. DOI: 10.1073/pnas.251548698
Wedel, M. (2009) Evidence for bird-like air sacs in saurischian dinosaurs. Journal of Experimental Zoology Part A: Ecological Genetics and Physiology, 311A(8), 611-628. DOI: 10.1002/jez.513
The bacteria have done it again. Several months ago in a post entitled Brilliant Bacteria we told you about two stories of bacterial genius. In the first story, we described the work of a team from the Weizmann Institute in Israel that found that E. coli have the ability to comprehend the present and use [...]... Read more »
Sirota-Madi A, Olender T, Helman Y, Ingham C, Brainis I, Roth D, Hagi E, Brodsky L, Leshkowitz D, Galatenko V.... (2010) Genome sequence of the pattern forming Paenibacillus vortex bacterium reveals potential for thriving in complex environments. BMC genomics, 710. PMID: 21167037
Conduction aphasia is characterized by relatively frequent phonemic speech errors with self-correction attempts and difficulty repeating speech verbatim; comprehension is relatively well-preserved. The classical account holds that conduction aphasia is caused by damage to the arcuate fasciculus. However, we have been arguing for some time that conduction aphasia is caused by damage to area Spt -- a functionally defined region in the vicinity of the left planum temporale that exhibits auditory-........ Read more »
Buchsbaum BR, Baldo J, Okada K, Berman KF, Dronkers N, D'Esposito M, & Hickok G. (2011) Conduction aphasia, sensory-motor integration, and phonological short-term memory - An aggregate analysis of lesion and fMRI data. Brain and language. PMID: 21256582
Vitamin A is supposed to be really good for you – improving your vision, complexion and even pre-natal health. But what does it do, exactly? A study published in the January 2011 issue of Development comes to some surprising conclusions about the link between vitamin A and heart development. ... Read more »
Brade T, Kumar S, Cunningham TJ, Chatzi C, Zhao X, Cavallero S, Li P, Sucov HM, Ruiz-Lozano P, & Duester G. (2011) Retinoic acid stimulates myocardial expansion by induction of hepatic erythropoietin which activates epicardial Igf2. Development (Cambridge, England), 138(1), 139-48. PMID: 21138976
Through studying viral pathogenesis we seek to understand mechanistically how viral infection and replication causes disease in a particular host. This of course will be subject to a number of complex variables involving both the host and the virus such as: dose; genotype; virus receptor distribution of host tissues;the ability of the virus to replicate [...]... Read more »
Sakuma T, Tonne JM, Squillace KA, Ohmine S, Thatava T, Peng KW, Barry MA, & Ikeda Y. (2011) Early Events in Retrovirus XMRV Infection of the Wild-Derived Mouse Mus pahari. Journal of virology, 85(3), 1205-13. PMID: 21084477
In a recent article entitled: Marine Sciences: from natural history to ecology and back, on Darwin's shoulders - Boero brings up the historical differences between biological oceanography, marine biology and ecology. It's time we turn our attention to this topic for discussion and opinions. I believe in both practice (applied science) and philosophical approach (or culture) that there is a distinct difference between an oceanographer and a marine biologist. ... Read more »
Boero, F. (2010) Marine Sciences: from natural history to ecology and back, on Darwin's shoulders. Advances in Oceanography and Limnology, 1(2), 219-233. DOI: 10.1080/19475721.2010.533350
A cognitive scientist friend of mine made a good point the other day about Amy Chua's assertion that "nothing is fun until you're good at it." It is, he said (and I should have seen right away) not true. Lots of things are fun before you're good at them. Potching around with a guitar or a tennis ...Read More
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Chiu, M., & Klassen, R. (2010) Relations of mathematics self-concept and its calibration with mathematics achievement: Cultural differences among fifteen-year-olds in 34 countries. Learning and Instruction, 20(1), 2-17. DOI: 10.1016/j.learninstruc.2008.11.002
Of mephedrone, bath salts, and impaired driving.
Automobile accidents are the ninth leading cause of death worlwide, according to the World Health Organization (WHO). More than a million people are killed on roads annually, and that number could rise to 2.5 million by 2020. WHO estimates that traffic accidents cost developing countries an astonishing 1-2 % of their gross domestic product (GDP).
For years now, police and public health officials have puzzled over the alarming number of tr........ Read more »
Colzato, L., Ruiz, M., van den Wildenberg, W., Bajo, M., & Hommel, B. (2011) Long-Term Effects of Chronic Khat Use: Impaired Inhibitory Control. Frontiers in Psychology. DOI: 10.3389/fpsyg.2010.00219
Mindbogglingly useful: a new, low-cost water purification protocol for the developing world now freely available* to download from CP Microbiology: Unit 1G.2 Bioremediation of Turbid Surface Water Using Seed Extract from Moringa oleifera Lam. (Drumstick) Tree In the Hitch-hiker’s Guide to the Galaxy, Douglas Adams described his fictional creation, the all language-translating Babel fish, as [...]... Read more »
Michael Lea. (2010) Bioremediation of Turbid Surface Water Using Seed Extract from Moringa oleifera Lam. (Drumstick) Tree. Current Protocols in Microbiology. DOI: 10.1002/9780471729259.mc01g02s16
Michael Lea. (2008) Biological Sand Filters: Low‐Cost Bioremediation Technique for Production of Clean Drinking Water. Current Protocols in Microbiology. DOI: 10.1002/9780471729259.mc01g01s9
I really enjoyed the long and involved debate that followed my article on the small elephant depicted on the wall of Rekhmire's tomb. Thank you to (just about) everyone who contributed. As I tried to make clear in the actual article, we'll likely never know the truth of the matter, and this whole exercise should be seen as a bit of fun speculation [image below © Alessando Mangione and Marco Masseti].
Read the rest of this post... | Read the comments on this post...... Read more »
Todd, N. (2010) New Phylogenetic Analysis of the Family Elephantidae Based on Cranial-Dental Morphology. The Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology, 293(1), 74-90. DOI: 10.1002/ar.21010
Aren’t they adorable? Orcas are beautiful animals and people often try to portray them as nicer animals than they really are (most notably anyone who thinks it is a good idea to keep these animals in an aquarium). Really though, orcas are nasty. That’s not to judge, all predators are essentially nasty. They eat other animals (but then again, so do I).... Read more »
Barrett-Lennard, L., Matkin, C., Durban, J., Saulitis, E., & Ellifrit, D. (2010) Predation of gray whales and prolonged feeding on submerged carcasses by transient killer whales at Unimak Island, Alaska. Marine Ecology Progress Series. DOI: 10.3354/meps08906
After 2010′s world-shaking revolutions in our understanding of modern human origins, the admixture of Eurasian hominins with neo-Africans, I assumed there was going to be a revisionist look at results which seemed to point to mixing between different human lineages over the past decade. Dienekes links to a case in point, a new paper in Molecular Biology and Evolution, An X-linked haplotype of Neandertal origin is present among all non-African populations. The authors revisit a genetic lo........ Read more »
Vania Yotova, Jean-Francois Lefebvre, Claudia Moreau, Elias Gbeha, Kristine Hovhannesyan, Stephane Bourgeois, Sandra Bédarida, Luisa Azevedo, Antonio Amorim, Tamara Sarkisian.... (2011) An X-linked haplotype of Neandertal origin is present among all non-African populations. Mol Biol Evol . info:/10.1093/molbev/msr024
How ants find their way around long distances using their eyes.... Read more »
Wehner, R. (2003) Desert ant navigation: how miniature brains solve complex tasks. Journal of Comparative Physiology A: Sensory, Neural, and Behavioral Physiology, 189(8), 579-588. DOI: 10.1007/s00359-003-0431-1
Mote, M., & Wehner, R. (1980) Functional characteristics of photoreceptors in the compound eye and ocellus of the desert ant,Cataglyphis bicolor. Journal of Comparative Physiology ? A, 137(1), 63-71. DOI: 10.1007/BF00656918
“Ubiquitin-dependent mechanisms have emerged as essential regulatory elements controlling cellular levels of Smads and TGFβ-dependent biological outputs such as epithelial–mesenchymal transition (EMT). # In this study, we identify a HECT E3 ubiquitin ligase known as WWP2 (Full-length WWP2-FL), together with … Continue reading →... Read more »
Soond, S., & Chantry, A. (2011) Selective targeting of activating and inhibitory Smads by distinct WWP2 ubiquitin ligase isoforms differentially modulates TGFβ signalling and EMT. Oncogene. DOI: 10.1038/onc.2010.617
Izzi, L., & Attisano, L. (2004) Regulation of the TGFβ signalling pathway by ubiquitin-mediated degradation. Oncogene, 23(11), 2071-2078. DOI: 10.1038/sj.onc.1207412
Was Tyrannosaurus rex a fearsome hunter or a scavenger? The answer is “both.” In the early 1990s, the paleontologist Jack Horner popularized the idea that Tyrannosaurus fed entirely on carrion. The idea that this dinosaur—the “prize fighter of antiquity“—could not catch or kill other dinosaurs was shocking. Reporters and documentary-makers ate it up, but other [...]... Read more »
Carbone, C., Turvey, S., & Bielby, J. (2011) Intra-guild competition and its implications for one of the biggest terrestrial predators, Tyrannosaurus rex. Proceedings of the Royal Society B: Biological Sciences. DOI: 10.1098/rspb.2010.2497
As someone who regularly works at a computer both at work and at home, sedentary activity is a part of my daily life. Unfortunately, my desk is the standard kind that requires me to sit on a chair; I can only dream of the kind that has a treadmill to encourage movement as I work. [...]... Read more »
Healy GN, Matthews CE, Dunstan DW, Winkler EA, & Owen N. (2011) Sedentary time and cardio-metabolic biomarkers in US adults: NHANES 2003-06. European heart journal. PMID: 21224291
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