A team of computer scientists in Spain applied a quantum PageRank algorithm to a network with 7 webpages. They found that the quantum PageRank sometimes ordered the webpages differently in terms of importance, but averaging the quantum PageRank score over time recovered the classical ordering.... Read more »
by Liz in Science of Eating Disorders
I have been fascinated and perplexed by reports of the seemingly invigorating and anxiety reducing effects of bingeing and purging (purging by self-induced vomiting). Personally, I cringe at the idea of self-induced vomiting and have always wanted to avoid vomiting at all costs, including during food poisoning. The insight from recent blog entries and the subsequent comments has made an impact on me. I see that the motivation to engage in bingeing/purging (b/p-ing) behavior ........ Read more »
Avena, N., Rada, P., Moise, N., & Hoebel, B. (2006) Sucrose sham feeding on a binge schedule releases accumbens dopamine repeatedly and eliminates the acetylcholine satiety response. Neuroscience, 139(3), 813-820. DOI: 10.1016/j.neuroscience.2005.12.037
Understanding workplace demands on our emotions is one of our popular topics. Recent research combines two issues we've reported on previously: surface acting, the form of emotional labour that involves expressing emotions you don't genuinely feel, and affect spin, a measure of the variability of a person's emotional experiences. The paper suggests that overall, surface acting places greater demands on people high in affect spin.Daniel Beal and colleagues ran their study with 64 restaurant serve........ Read more »
Beal, D., Trougakos, J., Weiss, H., & Dalal, R. (2013) Affect Spin and the Emotion Regulation Process at Work. Journal of Applied Psychology. DOI: 10.1037/a0032559
Among other intriguing properties, the sacred lotus has the ability to generate heat and regulate its temperature like birds and mammals. It has been cultivated as a food crop for more than 7000 years in Asia and is prominent in both Buddhism and Hinduism.
An international team has sequenced and described the sacred lotus genome, now published online in Genome Biology. The paper sheds new light on the evolutionary position of the lotus, one of the world’s oldest flowering plants, and fa........ Read more »
Diana Yates. (2013) Sacred lotus genome sequence enlightens scientists. University of Illinois. info:/
t’s sexier, we already knew that. But lower voices do more than just turning people on. It appears a deep sound also means more success in your career. A new study makes some pretty clear statements about the associations between wage, management power, tenure and the tone of voice.... Read more »
Mayew, W., Parsons, C., & Venkatachalam, M. (2013) Voice pitch and the labor market success of male chief executive officers. Evolution and Human Behavior. DOI: 10.1016/j.evolhumbehav.2013.03.001
PowerPoint is often maligned but new research shows a courtroom PowerPoint effect that is nothing to dismiss! When Plaintiff attorneys used PowerPoint slides, mock jurors thought the Defendant was more liable for the alleged behavior. When the Defense used PowerPoint slides, the Defendant was less liable in the eyes of the mock jurors. Seriously? Because [...]
Patent litigation and wonder in East Texas
Chicago attorney explains to Court: “Personally, I like large breasts.̶........ Read more »
Park, J., & Feigenson, N. (2013) Effects of a Visual Technology on Mock Juror Decision Making. Applied Cognitive Psychology, 27(2), 235-246. DOI: 10.1002/acp.2900
Plants and other photosynthetic organisms live in a catch-22 situation. “Plants produce oxygen but are also poisoned by oxygen,” says Roberto Bassi, an Italian plant physiologist who has been passionate about photosynthesis since his graduate degree at the Padua University Botanical Garden. Bassi’s research group at Verona University played a pivotal role in understanding the dual function of carotenoid pigments in absorbing light energy and protecting the photosynthetic machinery against ........ Read more »
Dall'Osto L., Piques M., Ronzani M., Molesini B., Alboresi A., Cazzaniga S., & Bassi R. (2013) The Arabidopsis nox Mutant Lacking Carotene Hydroxylase Activity Reveals a Critical Role for Xanthophylls in Photosystem I Biogenesis. The Plant Cell, 25(2), 591-608. DOI: 10.1105/tpc.112.108621
How do organisms evolve into individuals that are distinguished from others by their own personal brain structure and behaviour? Scientists in Dresden, Berlin, Münster, and Saarbrücken have now taken a decisive step towards clarifying this question. Using mice as an animal model, they were able to show that individual experiences influence the development of new neurons, leading to measurable changes in the brain. The results of this study are published in Science on May 10th. The DFG-........ Read more »
Britta Grigull. (2013) Experience leads to the growth of new brain cells. Max Planck Institute for Human Development. info:/
As part of our objective and subjective rationality model, we want a focal agent to learn the probability that others will cooperate given that the focal agent cooperates () or defects (). In a previous post we saw how to derive point estimates for and (and learnt that they are the maximum likelihood estimates): , […]... Read more »
Masel, J. (2007) A Bayesian model of quasi-magical thinking can explain observed cooperation in the public good game. Journal of Economic Behavior , 64(2), 216-231. DOI: 10.1016/j.jebo.2005.07.003
Suicide rates have fallen among farmers
Among the various risk factors for suicide, psychologists have recognised for some time that a person's occupation plays an important part. Suicide rates have tended to be unusually high in professions that provide ready access to guns, drugs, or open water, such as in farming, medicine, dentistry and maritime careers.
A new analysis has examined whether this still holds true. Stephen Roberts and his colleagues accessed the UK suicide rates for dozens ........ Read more »
Take Home Message: The balance error scoring system (BESS) test is more effective in assessing high school age students’ concussions compared to the Balance Accelerometer Measure (BAM) assessment. The tandem leg stances on firm and foam surface of the BESS test are the most sensitive and specific positions for the detection of a concussion.
Assessing balance after a concussion provides useful information not only for diagnosis and prognosis but also during the athlete’s return to ........ Read more »
Furman GR, Lin CC, Bellanca JL, Marchetti GF, Collins MW, & Whitney SL. (2013) Comparison of the Balance Accelerometer Measure and Balance Error Scoring System in Adolescent Concussions in Sports. The American Journal of Sports Medicine. PMID: 23585486
Escape from Camp 14 is deeply disturbing, and I highly recommend it. Escape from Camp 14 by Blaine HardenEscape from Camp 14 is a chilling tale of Shin Dong-hyuk's escape from a North Korean prison camp. What is so interesting about Shin Dong-hyuk's story as written by Blaine Harden is that he was born inside this North Korean prison camp. Apparently they allow breeding between prisoners as a reward for 'good behavior.'Escape from Camp 14 reveals the obscene violations of human rights that occur........ Read more »
Lee YM, Shin OJ, & Lim MH. (2012) The psychological problems of north korean adolescent refugees living in South Korea. Psychiatry investigation, 9(3), 217-22. PMID: 22993519
This Mother’s Day leads me to not only reflect on the fortunes of my own family, but also the misfortunes of other mothers. ... Read more »
Fairley, J., Bisanzio, D., King, C., Kitron, U., Mungai, P., Muchiri, E., King, C., & Malhotra, I. (2012) Birthweight in Offspring of Mothers with High Prevalence of Helminth and Malaria Infection in Coastal Kenya. American Journal of Tropical Medicine and Hygiene, 88(1), 48-53. DOI: 10.4269/ajtmh.2012.12-0371
Seydel LS, Petelski A, van Dam GJ, van der Kleij D, Kruize-Hoeksma YC, Luty AJ, Yazdanbakhsh M, & Kremsner PG. (2012) Association of in utero sensitization to Schistosoma haematobium with enhanced cord blood IgE and increased frequencies of CD5- B cells in African newborns. The American journal of tropical medicine and hygiene, 86(4), 613-9. PMID: 22492145
A new class of tiny, injectable LEDs is illuminating the deep mysteries of the brain.
Researchers at the University of Illinois at Urbana-Champaign and Washington University in St. Louis developed ultrathin, flexible optoelectronic devices – including LEDs the size of individual neurons – that are lighting the way for neuroscientists in the field of optogenetics and beyond.... Read more »
Liz Ahlberg. (2013) A bright idea: Tiny injectable LEDs help neuroscientists study the brain. University of Illinois News Bureau. info:/
Kim, T., McCall, J., Jung, Y., Huang, X., Siuda, E., Li, Y., Song, J., Song, Y., Pao, H., Kim, R.... (2013) Injectable, Cellular-Scale Optoelectronics with Applications for Wireless Optogenetics. Science, 340(6129), 211-216. DOI: 10.1126/science.1232437
Electromicrobiology is one of the rising subjects in the field of science. It combines the technology with biology.
In this subject, initially scientists found the transmission of electrical signals between the microbes. On a further note, in this subject, we study about the complex interaction between the microorganisms and technological devices while considering the novel electrical properties of the microorganisms i.e. accepting or donating the electrons from electrodes wi........ Read more »
Weight loss is hard for most people. And there many different factors involved in weight gain. One of the things that differs in people is the ability to taste bitterness. The post Weight loss: does food give some people an “eaters high?” appeared first on WODMasters Stiff Competition.... Read more »
Tomassini Barbarossa I, Carta G, Murru E, Melis M, Zonza A, Vacca C, Muroni P, Di Marzo V, & Banni S. (2013) Taste sensitivity to 6-n-propylthiouracil is associated with endocannabinoid plasma levels in normal-weight individuals. Nutrition (Burbank, Los Angeles County, Calif.), 29(3), 531-6. PMID: 23398921
A group of researchers from the University of Western Australia reported a new type of unknown mechanism by which some plants communicate.... Read more »
Gagliano, M., & Renton, M. (2013) Love thy neighbour: facilitation through an alternative signalling modality in plants. BMC Ecology, 13(1), 19. DOI: 10.1186/1472-6785-13-19
Nodding syndrome.Ever heard of it? Well, up until a few days ago I hadn't. That is before coming across articles on the topic by Richard Idro and colleagues* (open-access) and Angelina Kakooza-Mwesige and colleagues** (open-access). Whilst not specifically my line of expertise or interest, I was intrigued to read about how nodding and other symptoms of the epileptic variety, at least in some cases, seemed to be precipitated by food and showed a potential nutritional angle.Curving spacetime&........ Read more »
Herbert, M., & Buckley, J. (2013) Autism and Dietary Therapy: Case Report and Review of the Literature. Journal of Child Neurology. DOI: 10.1177/0883073813488668
Most people recognise that we don’t speak in “sentences”. Still, speech is analysed and described using the concepts of sentence grammars, even when these writing-based systems must be bent and stretched, or vice versa – isn’t it cheating to “clean up” naturally occurring speech so it fits into a sentence grammar? In a previous post […]... Read more »
Last year, I blogged about a new and very pretty way of displaying the data about the human ‘connectome’ – the wiring between different parts of the brain. But there are many beautiful ways of visualizing the brain’s connections, as neuroscientists Daniel Margulies and colleagues of Leipzig discuss in a colourful paper showcasing these techniques. Here, [...]... Read more »
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