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Remembering is seeing

Studies investigating the impact of memory on perception aim to understand how our brains alter sensory information, enabling us to conserve energy on expected stimuli. This research may lead to advancements in treating PTSD by analyzing communication between brain regions affected by trauma.

SourceHarvard Medical School·JournalNature Neuroscience·DateMar 8, 2022

Finding structure in the brain’s static

Scientists found smaller, faster waves in the visual cortex that relate to how attentive the brain is. These wave patterns may help understand sleep, anesthesia, and attention by suppressing irrelevant information. The discovery could also improve artificial brains using machine learning techniques.

SourceCold Spring Harbor Laboratory·JournalNature Communications·DateFeb 1, 2022

Sleeping mice show busy brains

A new study reveals that the superior colliculus, a lesser-studied region responsible for saccades and facial recognition, dynamically changes its clustering of neurons depending on the mouse's conscious state. This finding suggests that the brain optimizes visual information processing based on its awake or anesthetized state.

SourceKyoto University·TypeExperimental study·DateDec 27, 2021

Switching in the brain: A fresh perspective

A transdisciplinary research team at Göttingen Campus has found a new perspective on the rhythmic processes in the brain. They discovered that adapting interneurons can switch between very slow rhythms and fast rhythms, challenging previous assumptions about their function.

SourceUniversity of Göttingen·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateDec 21, 2021

Sun compass on demand

Researchers from the University of Würzburg discovered that monarch butterflies process sun information as a compass during migration, but only when flying actively. The butterfly's brain represents the heading direction relative to the sun in a similar way to a compass.

SourceUniversity of Würzburg·JournalCurrent Biology·TypeExperimental study·DateNov 24, 2021

How do we learn to learn? New research offers an education

A new study on mice finds that cognitive training designed to focus on what's important while ignoring distractions can enhance the brain's information processing. The research suggests that this type of training can lead to improved learning and memory, particularly in novel tasks. By analyzing neural activity in the hippocampus durin...

SourceNew York University·JournalNature·TypeExperimental study·DateNov 10, 2021

Computational techniques in ICU: Neural synchrony predicts outcome after coma

Researchers used sound processing to examine neural synchrony in comatose patients. They found that higher neural synchrony was predictive of a favorable outcome, with indistinguishable levels from healthy controls. The study also revealed surprising neural complexity, with reduced complexity in survivors compared to non-survivors.

SourceInselspital, Bern University Hospital·JournalNeuroImage·TypeComputational simulation/modeling·DateNov 5, 2021

Intelligence emerging from random polymer networks

A team of researchers from Osaka University has designed a sulfonated polyaniline network for reservoir computing, achieving 70% accuracy in speech recognition tasks. The device uses an electrochemical approach and has potential applications in the development of artificial intelligence devices.

SourceOsaka University·JournalAdvanced Materials·TypeExperimental study·DateOct 6, 2021

The unique brain state of team flow

Researchers discovered a distinct brain signature associated with team flow, characterized by increased beta and gamma waves in the middle temporal cortex. This neural pattern is linked to enhanced information processing and synchronization between teammates during the team flow state.

SourceSociety for Neuroscience·JournaleNeuro·DateOct 4, 2021

An X-ray of the vending machines

A study by the University of the Basque Country analyzed the nutritional profile and level of processing of food products sold in vending machines. The results show that 48.6% of the products were classified as low-quality, while 73.8% were ultra-processed.

SourceUniversity of the Basque Country·JournalInternational Journal of Environmental Research and Public Health·DateSep 20, 2021

Infants recognize rapid images, just like adults

Researchers found that infants aged 7 and 8 months could identify two faces when the temporal interval was 800ms, but overlooked the second face when separated by 200ms. This suggests that infants take less than a second to process visual information and have the same temporal limitation as adults.

SourceChuo University·JournalCognition·DateMay 21, 2021

Politically polarized brains share an intolerance of uncertainty

A recent study at Brown University found that intolerance to uncertainty exacerbates polarization in both liberals and conservatives. The researchers measured brain activity while participants watched real political debates and news broadcasts, finding that neural responses diverged between individuals with different ideological beliefs.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateMay 13, 2021

A neuromagnetic view through the skull

A team of researchers has successfully developed a highly sensitive magnetoencephalography (MEG) technology that can detect even fast brain oscillations produced in response to single sensory stimuli. This breakthrough enables noninvasive observation of nerve cells transmitting information, shedding light on factors such as alertness a...

SourcePhysikalisch-Technische Bundesanstalt (PTB)·JournalProceedings of the National Academy of Sciences·DateApr 15, 2021

The structure and function of cortical brain cells modulated by attention

A recent study published in the Proceedings of the National Academy of Sciences reveals how cognitive control and sensory information relate to cortical machinery. Researchers found that signal propagation between cortical areas V1 and V4 is modulated by attention, challenging previous theories about parallel processing flows.

SourceUniversitat Pompeu Fabra - Barcelona·JournalProceedings of the National Academy of Sciences·DateApr 7, 2021

Depression affects visual perception

Researchers at the University of Helsinki found that depression alters the way the brain processes visual information, with depressed individuals perceiving contrast as stronger. The study used two visual tests to compare brain function in patients with depression to those without.

SourceUniversity of Helsinki·JournalJournal of Psychiatry and Neuroscience·DateMar 29, 2021

Psychological 'signature' for the extremist mind uncovered by Cambridge researchers

A new study maps the psychological signatures of people predisposed to holding extreme social, political or religious attitudes, including nationalist fervor. Cognitive traits such as poorer working memory, slower perceptual strategies, and impulsivity are linked to endorsement of violence in support of an ideological group.

SourceUniversity of Cambridge·JournalPhilosophical Transactions of the Royal Society of London (B )·DateFeb 21, 2021

How do we prioritize what we see?

A new study reveals that the occipital cortex is essential for guiding involuntary attention to prioritize visual information. Researchers used transcranial magnetic stimulation to disrupt cortical excitability in this region, finding that it eliminates behavioral benefits and costs at attended and unattended locations.

SourceNew York University·JournalCurrent Biology·DateAug 13, 2020

'Time is vision' after a stroke

Stroke survivors who receive early visual training can recover more of their lost vision than those trained later. Researchers discovered that the brain's visual structures degenerate over time after an occipital stroke, but early intervention can halt this loss.

SourceUniversity of Rochester·JournalBrain·DateMay 22, 2020

Physicists offer a new 'spin' on memory

A team of physicists at the University of Arizona discovered a thin layer of iron oxide that explains a long-standing puzzle in magnetic tunnel junctions, which could lead to faster and more efficient spintronics. The finding opens up new possibilities for developing this technology, potentially revolutionizing computing.

SourceUniversity of Arizona·JournalPhysical Review Letters·DateMay 15, 2020

Knowing more about a virus threat may not satisfy you

A recent study on Zika virus found that individuals who thought they knew more about the threat were actually more likely to feel uncertain and anxious. The researchers suggest that public health agencies should focus on providing ongoing updates and shaping messages that encourage people to stay informed, as uncertainty can fuel fears...

SourceOhio State University·JournalRisk Analysis·DateMar 10, 2020

A surprising new source of attention in the brain

Research at Rockefeller University discovered a new brain area, PITd, that steers attention and challenges the long-held concept of attention control. The finding suggests a rethinking of old concepts about attentional control and highlights the complexity of the brain's attention mechanisms.

SourceRockefeller University·JournalProceedings of the National Academy of Sciences·DateDec 19, 2019