In a brazen act of arm-chair diagnosis, Eric Bui and colleagues at Toulouse University Hospital in France have written a short academic article arguing that the Star Wars character Darth Vader probably meets the diagnostic criteria for borderline personality disorder (BPD). The authors point to Anakin Skywalker's (as he was originally known) life history, including fatherly absence, early maternal separation and infantile illusions of omnipotence. They go on to claim that Skywalker meets six of ........ Read more »
Bui, E., Rodgers, R., Chabrol, H., Birmes, P., & Schmitt, L. (2010) Is Anakin Skywalker suffering from borderline personality disorder?. Psychiatry Research. DOI: 10.1016/j.psychres.2009.03.031
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Barrett, K., Helms, B., Guyer, C., & Schoonover, J. (2010) Linking process to pattern: Causes of stream-breeding amphibian decline in urbanized watersheds. Biological Conservation. DOI: 10.1016/j.biocon.2010.05.001
I was imitating Jean Chrétien a while ago to tell an anecdote to one of my students.
I could have done the greatest, most perfect, most spot-on, hysterical impersonation of Chrétien ever.* It all would have been lost on this student. An American undergraduate would be unlikely to recognize a Canadian prime minister, no matter how distinctive his speaking style was. (And it was. Oh, how it was.)
That’s the problem with imitation: it only works if both parties recognize what&........ Read more »
Pfennig, D., & Mullen, S. (2010) Mimics without models: causes and consequences of allopatry in Batesian mimicry complexes. Proceedings of the Royal Society B: Biological Sciences. DOI: 10.1098/rspb.2010.0586
Subtitle: Recent research identifies many changes in copy number that may point to genes that cause or are associated with autism.
In order to verify that important information has been conveyed over radio, the sender might ask “how do you copy” or, more briefly, “how copy” asking the receiver to tell the sender the information they [...]... Read more »
Pinto, D., Pagnamenta, A., Klei, L., Anney, R., Merico, D., Regan, R., Conroy, J., Magalhaes, T., Correia, C., Abrahams, B.... (2010) Functional impact of global rare copy number variation in autism spectrum disorders. Nature. DOI: 10.1038/nature09146
One of the issues raised by the recent Sarmiento comments is that of the Miocene apes and the evolution of a short back. All extant apes possess a “short back,” by which we mean a reduction in the lumbar spine combined with an upward elongation of the blades of the pelvis. This back is a nice, [...]... Read more »
McCollum MA, Rosenman BA, Suwa G, Meindl RS, & Lovejoy CO. (2010) The vertebral formula of the last common ancestor of African apes and humans. Journal of experimental zoology. Part B, Molecular and developmental evolution, 314(2), 123-34. PMID: 19688850
Pilbeam, D. (2004) The anthropoid postcranial axial skeleton: Comments on development, variation, and evolution. Journal of Experimental Zoology, 302B(3), 241-267. DOI: 10.1002/jez.b.22
Preuschoft, H., Hayama, S., & Günther, M. (1988) Curvature of the Lumbar Spine as a Consequence of Mechanical Necessities in Japanese Macaques Trained for Bipedalism. Folia Primatologica, 50(1-2), 42-58. DOI: 10.1159/000156333
NAKATSUKASA, M., KUNIMATSU, Y., NAKANO, Y., & ISHIDA, H. (2007) Vertebral morphology of Nacholapithecus kerioi based on KNM-BG 35250. Journal of Human Evolution, 52(4), 347-369. DOI: 10.1016/j.jhevol.2006.08.008
Dr. Aaron Wheeler from the University of Toronto has developed the first microfluidic system for “complete” cell culture (with passaging), powered by digital microfluidics. This system offers the advantage of using only a fraction of reagents usually required in cell culture and of automating and accelerating tedious manual tasks. In a review article published in [...]... Read more »
A sarcastic thank you to Scott Gavura from Science Based Medicine and Science Based Pharmacy whose tweet lead me to suffer through reading the latest in a never ending stream of Big Milk sponsored published info-studies.This one?Funded by Big Milk with a first author who has had speaking gigs with the Swedish Dairy Association and the International Dairy Federation this study has been reported as being proof that dairy consumption reduces the risk of heart attacks.The study?The authors, via a pr........ Read more »
Warensjo, E., Jansson, J., Cederholm, T., Boman, K., Eliasson, M., Hallmans, G., Johansson, I., & Sjogren, P. (2010) Biomarkers of milk fat and the risk of myocardial infarction in men and women: a prospective, matched case-control study. American Journal of Clinical Nutrition. DOI: 10.3945/ajcn.2009.29054
A recent study out of the Netherlands shows that type 2 diabetics taking insulin and metformin are at risk of clinically significant vitamin B12 deficiency. B12 deficiency may cause anemia, nerve damage (neuropathy), and dementia, among other problems. Metformin is the cornerstone of drug therapy for type 2 diabetes. One reason is that it’s associated [...]... Read more »
de Jager, J., Kooy, A., Lehert, P., Wulffele, M., van der Kolk, J., Bets, D., Verburg, J., Donker, A., & Stehouwer, C. (2010) Long term treatment with metformin in patients with type 2 diabetes and risk of vitamin B-12 deficiency: randomised placebo controlled trial. BMJ, 340(may19 4). DOI: 10.1136/bmj.c2181
A recently published study suggests that the Deepwater Horizon oil leak may devastate the endangered Atlantic bluefin population, causing it to completely collapse or possibly go extinct.... Read more »
Steven L. H. Teo, & Barbara A. Block. (2010) Comparative Influence of Ocean Conditions on Yellowfin and Atlantic Bluefin Tuna Catch from Longlines in the Gulf of Mexico. PLoS ONE, 5(5). info:/10.1371/journal.pone.0010756
Studies of brain damage give a unique insight into how the mind works. If your behaviour changes when a specific lump is taken out, then that's pretty good evidence for the function of that particular lump.
So what happens when half your brain starts to rot away? Dennis Chan, a neurologist at the Institute of Neurology in London, decided to find out.
'Right temporal lobe atrophy' is a rare condition in which a major part of the right side of the brain simply withers away. You can see a particu........ Read more »
Chan, D., Anderson, V., Pijnenburg, Y., Whitwell, J., Barnes, J., Scahill, R., Stevens, J., Barkhof, F., Scheltens, P., Rossor, M.... (2009) The clinical profile of right temporal lobe atrophy. Brain, 132(5), 1287-1298. DOI: 10.1093/brain/awp037
I’ve been trying to keep up with the Gulf situation, so most of my reading of late has been dominated by those details, and the unread numbers in my RSS folders were a little intimidating, but I finally found some time to read some of the papers I’ve earmarked in the past month or so.
... Read more »
Louys, J., & Meijaard, E. (2010) Palaeoecology of Southeast Asian megafauna-bearing sites from the Pleistocene and a review of environmental changes in the region. Journal of Biogeography. DOI: 10.1111/j.1365-2699.2010.02297.x
Marwick, B. (2009) Biogeography of Middle Pleistocene hominins in mainland Southeast Asia: A review of current evidence. Quaternary International, 202(1-2), 51-58. DOI: 10.1016/j.quaint.2008.01.012
(Brain Post Note: Hannah Dunbar is a summer research student from Oral Roberts University. Today she will be summarizing some of the key issues in the neurobiology of the switch process in bipolar disorder. Bipolar disorder is a somewhat unique mental disorder in that the onset of a mood swing can be quite dramatic--a patient with bipolar disorder can be fine one day and manic the next. It is important to try to understand the pathophysiology behind this rapid switch mechanism.)Introduction:........ Read more »
Salvadore G, Quiroz JA, Machado-Vieira R, Henter ID, Manji HK, & Zarate CA Jr. (2010) The neurobiology of the switch process in bipolar disorder: a review. The Journal of clinical psychiatry. PMID: 20492846
This is the last post in my series on Philip McCann’s paper , which considers New Zealand’s productivity paradox: why, despite being ranked very highly for the factors that are normally thought by economists to drive economic growth, is New Zealand’s economy is just an average performer? In the previous post, I discussed why McCann [...]... Read more »
McCann, P. (2009) Economic geography, globalisation and New Zealand's productivity paradox. New Zealand Economic Papers, 43(3), 279-314. DOI: 10.1080/00779950903308794
Then I went through physio school, I remember feeling more and more aware of how I sat, as the course went on. We were clearly learning our stuff – we knew, that back pain was caused in no small part by discs bulging – HANG ON! Let me start at the beginning (for as Mary [...]... Read more »
Claus A, Hides J, Moseley GL, & Hodges P. (2008) Sitting versus standing: does the intradiscal pressure cause disc degeneration or low back pain?. Journal of electromyography and kinesiology, 18(4), 550-8. PMID: 17346987
It has been said that "word frequency" is the most important variable in language research, despite the belief by many that it can't be used as a variable because no one really knows what a word is. (see: Minifalsehood: We can't tell what a word is!?!? and A run in my stocking ...)
A recent study in PLoS looks at a heretofore under investigated area, word/character use in Chinese. Read the rest of this post... | Read the comments on this post...... Read more »
Cai, Q., & Brysbaert, M. (2010) SUBTLEX-CH: Chinese Word and Character Frequencies Based on Film Subtitles. PLoS ONE, 5(6). DOI: 10.1371/journal.pone.0010729
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As per a new study reported in PNAS, positive emotions and hedonic well being, like happiness and enjoyment, increase past the age of 50 (after reaching a nadir at that age) , while negative emotions , like stress, worry and anger decline with age throughout.
This is the conclusion that Stone et al reached More >Rating: 0.0/10 (0 votes cast)
Related posts:Schizophrenia and plasticity/neurogenisis: a case for positive selection? A recent s........ Read more »
Stone, A., Schwartz, J., Broderick, J., & Deaton, A. (2010) A snapshot of the age distribution of psychological well-being in the United States. Proceedings of the National Academy of Sciences, 107(22), 9985-9990. DOI: 10.1073/pnas.1003744107
by Vincent Racaniello in virology blog
When infection with hepatitis C virus goes from acute to chronic, severe liver disease may occur which requires organ transplantation. Nearly 200 million people are chronically infected with HCV, necessitating approaches to preventing and treating infections. No HCV vaccine is available, and current antiviral therapy consists of administration of interferon plus ribavirin, a combination that [...]... Read more »
Gao M, Nettles RE, Belema M, Snyder LB, Nguyen VN, Fridell RA, Serrano-Wu MH, Langley DR, Sun JH, O'Boyle DR 2nd.... (2010) Chemical genetics strategy identifies an HCV NS5A inhibitor with a potent clinical effect. Nature, 465(7294), 96-100. PMID: 20410884
There's been a big sports story that has been getting a lot of press lately. Armando Galarraga of the Detroit Tigers was on his way to pitching a perfect game, that is, he had pitched 8 and 2/3 innings and hadn't let a single person get on base (no hits, no walks, just 3 batters up and 3 down, every inning). Philadelphia Phillies pitcher Roy Halladay recently pitched a perfect game against the Florida Marlins, but don't be fooled... his perfect game was only the 20th in the history o........ Read more »
Baldo, M., Ranvaud, R., & Morya, E. (2002) Flag errors in soccer games: the flash-lag effect brought to real life. Perception, 31(10), 1205-1210. DOI: 10.1068/p3422
This post is the last in a special series about four fundamental forces in evolution: natural selection, mutation, genetic drift, and migration.
It's the little differences. I mean, they got the same shit over there that we got here, but it's just—it's just there it's a little different.
— Vincent, Pulp FictionDifferent places are different from each other. This is a truism bordering on tautology, but it also has real implications for the ways in which life evolves and diversifies. The spec........ Read more »
Arnold, M., Hamrick, J., & Bennett, B. (1990) Allozyme variation in Louisiana irises: a test for introgression and hybrid speciation. Heredity, 65(3), 297-306. DOI: 10.1038/hdy.1990.99
Good J.M., Hird S., Reid N., Demboski J.R., Steppan S.J., Martin-Nims T.R., & Sullivan J. (2008) Ancient hybridization and mitochondrial capture between two species of chipmunks. Molecular ecology, 17(5), 1313-27. PMID: 18302691
Martin, N.H., Bouck, A.C., & Arnold, M.L. (2005) Detecting adaptive trait introgression between Iris fulva and I. brevicaulis in highly selective field conditions. Genetics, 172(4), 2481-9. DOI: 10.1534/genetics.105.053538
Martin, N., Sapir, Y., & Arnold, M. (2008) The genetic architecture of reproductive isolation in Louisiana irises: Pollination syndromes and pollinator preferences. Evolution, 62(4), 740-52. DOI: 10.1111/j.1558-5646.2008.00342.x
Nosil, P., Egan, S., & Funk, D. (2008) Heterogeneous genomic differentiation between walking-stick ecotypes: "Isolation by adaptation" and multiple roles for divergent selection. Evolution, 62(2), 316-36. DOI: 10.1111/j.1558-5646.2007.00299.x
Nosil, P., Vines, T., & Funk, D. (2005) Reproductive isolation caused by natural selection against immigrants from divergent habitats. Evolution, 59(4), 705-19. DOI: 10.1554/04-428
Slatkin, M. (1987) Gene flow and the geographic structure of natural populations. Science, 236(4803), 787-92. DOI: 10.1126/science.3576198
Wang, J. (2004) Application of the one-migrant-per-generation rule to conservation and management. Conservation Biology, 18(2), 332-43. DOI: 10.1111/j.1523-1739.2004.00440.x
Wright, S.J. (1943) Isolation by distance. Genetics, 139-56. info:other/PMC1209196
Without a clear rationale for doing so, statistical significance testing on sample-level statistics can mislead and confuse. Schmidt (2010) provides a clear explanation of how to avoid this problem through psychometric meta-analysis.... Read more »
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