Add BrightSurf on Google Email

How the brain recognizes what the eye sees

Researchers analyzed how neurons in V2 respond to natural scenes, discovering three principles: combining edges, cross-orientation suppression, and repeating patterns. This work provides insight into the brain's ability to recognize faces, cars, and other objects.

SourceSalk Institute·JournalNature Communications·DateJun 8, 2017

What makes a movement feel strenuous?

A study published in PLOS Biology found that duration, biomechanics, and force influence the subjective effort associated with arm movements, while movement amplitudes have no effect. The researchers also discovered a link between brain functions involved in decision-making and movement execution.

SourcePLOS·JournalPLOS Biology·DateJun 6, 2017

Frailer patients at much greater risk of institutional care and death after discharge from hospital

A recent study found that frail patients are almost twice as likely to die in the year following critical care admission, with nearly 40% dying within one year. Additionally, frail patients were more than twice as likely to need institutional care and become increasingly dependent after discharge from hospital.

Microphysical differences in precipitation between Tibet and southern China

A study analyzing raindrop size distribution data over Tibet and southern China reveals significant microphysical differences in precipitation. The results indicate lower raindrop number concentrations for convective precipitation in Tibet, while larger raindrops show similar characteristics in both regions.

SourceInstitute of Atmospheric Physics, Chinese Academy of Sciences·JournalAdvances in Atmospheric Sciences·DateMay 2, 2017

New study challenges formaldehyde cancer findings

A reanalysis of raw data from a widely used study on formaldehyde exposure shows no link between formaldehyde and leukemia. The study challenges the original conclusions that linked formaldehyde to an increased risk of leukemia, highlighting a need for reconsideration of formaldehyde health risks.

Gut bacteria tell the brain what animals should eat

A study published in PLOS Biology reveals that gut bacteria control food preferences in fruit flies by inducing metabolic changes that mimic protein satiety. The research identifies two bacterial species responsible for altering appetite behavior, shedding light on the complex interaction between diet and microbes.

SourcePLOS·JournalPLOS Biology·DateApr 25, 2017

What's coming next? Scientists identify how the brain predicts speech

Researchers have discovered how individual neurons coordinate to anticipate events in the brain's auditory cortex. This process is impaired in neurological and psychiatric disorders such as dyslexia and ADHD. By understanding these mechanisms, scientists hope to develop new models for studying predictive signals in the brain.

SourcePLOS·JournalPLOS Biology·DateApr 25, 2017

Distantly related fish find same evolutionary solution to dark water

A study found that three-spined stickleback fish evolved the same genetic changes in their color-vision gene to adapt to dark and clear water environments. The research demonstrated convergent evolution across vastly different time scales, showing that mechanisms underlying adaptive evolution are predictable.

SourcePLOS·JournalPLOS Biology·DateApr 11, 2017

Algorithms can exploit human perception in graph design

Researchers have developed an algorithm to automatically improve the design of scatterplots by exploiting models and measures of human perception. The optimized designs effectively communicate relationships between two data variables, reducing unintended miscommunication.

SourceAalto University·JournalIEEE Transactions on Visualization and Computer Graphics·DateApr 5, 2017

New strategy identifies potential drugs and targets for brain repair

Researchers have discovered small molecule drugs that activate signaling pathways leading to specific adult brain cell types from stem cells. These findings provide new insights into neural development and repair, identifying several new approved drugs with potential therapeutic value for brain injury repair.

SourcePLOS·JournalPLOS Biology·DateMar 28, 2017

Stop eating! You are full

Researchers have discovered a molecule sent by fat cells to the fly brain that signals when energy stores are sufficient, inhibiting feeding behavior. This finding suggests a potential appetite-suppression mechanism in humans and may lead to new weight management strategies.

SourcePLOS·JournalPLOS Biology·DateMar 28, 2017

Poor outlook for biodiversity in Antarctica

A new study by an international team of scientists has found that Antarctica's biodiversity and conservation management are similar to those globally. Despite some areas of improvement, such as invasive species management, overall progress is lagging behind global targets.

SourcePLOS·JournalPLOS Biology·DateMar 28, 2017

Mosquito monitoring has limited utility in dengue control, study finds

Researchers found no association between mosquito abundance and dengue virus risk, but longitudinal indicators showed individuals living with mosquito evidence were more likely to contract dengue. Alternative surveillance frameworks incorporating human outcomes may be necessary for effective dengue control programs.

SourcePLOS·JournalPLOS Neglected Tropical Diseases·DateMar 23, 2017

World's oldest plant-like fossils discovered

Scientists have discovered the world's oldest plant-like fossils, estimated to be 1.6 billion years old, in sedimentary rocks in central India. The findings suggest that advanced multicellular life evolved much earlier than previously thought, challenging our understanding of the evolution of life on Earth.

SourcePLOS·JournalPLOS Biology·DateMar 14, 2017

Uncovering new relationships and organizational principles in protein interaction networks

Researchers at Stowers Institute for Medical Research used topological data analysis to identify new insights into the organization of complicated protein interaction networks. The study revealed topological network modules composed of proteins with shared properties, providing insight into biological functions and disease mechanisms.

SourceStowers Institute for Medical Research·JournalScientific Reports·DateMar 8, 2017

Sub-second system seizures

Researcher Neil Johnson studied sub-second delays in electronic stock exchange data, finding that natural delays already exist in these systems, which can become correlated and cause unexpected behaviors. Introducing more delays could be disastrous, as humans wouldn't be able to respond quickly enough.

SourceUniversity of Miami·JournalScience·DateMar 8, 2017

'Black swan' events strike animal populations

A new analysis found drastic changes in animal populations occur in about 4% of cases, most commonly in birds, with extreme events driven by parasites, climate and predators. Developing management plans to withstand sudden swings could help buffer against black swan disasters and prevent extinctions.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·DateMar 7, 2017