Tag Archives: PLoS

Promiscuous Queen Bees Maintain Genetic Diversity

Science Daily By mating with nearly 100 males, queen bees on isolated islands avoid inbreeding and keep colonies healthy. The results, published in the current issue of PLoS ONE, focused on giant honey bee colonies on Hainan Island, off the … Continue reading

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Immunity in Society: Diverse Solutions to Common Problems

Simon A. Babayan & David S. Schneider PLos Biology Abstract Understanding how organisms fight infection has been a central focus of scientific research and medicine for the past couple of centuries, and a perennial object of trial and error by … Continue reading

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Reasoning, Learning, and Creativity: Frontal Lobe Function and Human Decision-Making

Anne Collins & Etienne Koechlin PLoS Biology Abstract The frontal lobes subserve decision-making and executive control—that is, the selection and coordination of goal-directed behaviors. Current models of frontal executive function, however, do not explain human decision-making in everyday environments featuring … Continue reading

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New Finding: Consuming Trans Fats Linked To Aggression

Sayer Ji GreenMedInfo In the first human study of its kind researchers have linked trans fatty acid consumption to increased aggression. Published in the Public Library of Science’s own journal, PLoS, March 5th 2012, researchers at the Dept. of Medicine … Continue reading

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Neural Mechanisms Underlying Motivation of Mental Versus Physical Effort

Schmidt, L. et al. PLos Biology Incentive motivation refers to the process in the brain by which we translate the expectation of a potential reward into the effort required to do an action, as for instance when the expected paycheck … Continue reading

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Brain ‘hyperconnectivity’ linked to depression

Sharon Jayson USA Today People with depression have hyperactive brain activity, according to a study published online today that offers new insight into the brain dysfunction that causes depression. Researchers at the University of California-Los Angeles studied the functional connections … Continue reading

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A New Look at “Filler Cells” in the Brain Reveals Their Role in Learning

Janelle Weaver PLoS When we learn associations between items or ideas, such as the value of currency used in a foreign country, the connections between certain brain cells become stronger. In the cellular process thought to underlie learning and memory—long-term … Continue reading

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Scientists teach computers to assess psychiatric risk

Kate Kelland Reuters Computer programs can be taught to select between brain scans of healthy young people and scans showing adolescents who are at higher risk of developing mental disorders such as anxiety and depression, scientists said Thursday. In a … Continue reading

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Science decodes ‘internal voices’

Source: BBC News Researchers have demonstrated a striking method to reconstruct words, based on the brain waves of patients thinking of those words. The technique reported in PLoS Biology relies on gathering electrical signals directly from patients’ brains. Based on … Continue reading

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Study gives new clues on how Alzheimer’s spreads

Source: Reuters Alzheimer’s disease appears to spread in a predictable pattern, infecting brain cell after brain cell as the disease spreads along linked circuits known as synapses, according to a new study. The findings, published on Wednesday in the online … Continue reading

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