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Monkey math machinery is like humans'

Researchers found that monkeys demonstrate a significant semantic congruity effect when making numerical comparisons, similar to humans. The study used colored cues to instruct monkeys to choose larger or smaller numbers, showing high accuracy and speed in the task.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateOct 31, 2005

Mental declines can be reversed - report shows

Research by Dr. Dennis Foth and Dr. Gordon Thompson found that mental declines related to aging are not universal and can be improved with a lifetime of good mental habits. Activities such as reading, traveling, and learning new skills can help maintain cognitive abilities throughout life.

SourceUniversity of Alberta·JournalEducational Gerontology·DateSep 15, 2005

Mental processing is continuous, not like a computer

Researchers found that language comprehension involves continuous processing and competition between representations, contradicting traditional discrete models. The study used mouse movements to track students' processing of words, revealing curved trajectories indicating gradual ambiguity resolution.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJun 27, 2005

Brain networks change according to cognitive task

Researchers at Northwestern University discovered that brain regions involved in information integration shift depending on cognitive task. Dynamic Causal Modeling revealed that specific regions, like the lateral temporal cortex and intraparietal sulcus, act as convergence zones integrating information from other parts of the brain.

How much can your mind keep track of?

Research reveals that humans have a limited capacity for processing multiple variables simultaneously, with performance decreasing significantly as problem complexity rises. The study found that academics struggled to accurately solve problems involving four or more variables, often reporting feelings of information loss and confusion.

SourceAssociation for Psychological Science·JournalPsychological Science·DateMar 8, 2005

'His is lighter than mine'

A study by researchers at University College London found that when participants were lifting a heavy box, they perceived the weight of an actor's lifted box as lighter than it actually was. This suggests that our brains use simulation theory to understand others' actions, which can lead to biased judgments in social situations. Accord...

SourceUniversity College London·JournalCurrent Biology·DateMar 22, 2004

Neurons that play truth or consequences

Researchers found neurons in the anterior cingulate cortex (ACC) respond to discrepancies between intentions and actual events, indicating that the brain monitors the consequences of actions. The study used detailed studies measuring neural activity in macaque monkeys performing tasks requiring self-control.

SourceVanderbilt University·JournalScience·DateOct 2, 2003

New brain imaging pinpoints areas of brain most crucial for normal functioning

Researchers have developed a new brain imaging technique called Voxel-based Lesion-Symptom Mapping (VLSM), which pinpoint areas of the brain most crucial for normal functioning. The method uses structural MRI scans and compares them to functional brain imaging data, allowing for more accurate mapping of brain damage and behavior.

SourceUniversity of California - San Diego·JournalNature Neuroscience·DateApr 21, 2003

Brain imaging study sheds light on inner workings of human intelligence

A new brain imaging study from Washington University in St. Louis has shed light on the inner workings of human intelligence, revealing that individuals with higher fluid intelligence use specific brain regions to resist distraction and maintain focus. The study found that participants with higher fluid intelligence engaged several key...

SourceWashington University in St. Louis·JournalNature Neuroscience·DateFeb 16, 2003

Melodies in your mind

Scientists at Dartmouth College used fMRI experiments to locate the brain region that processes musical harmony, revealing a key area in the rostromedial prefrontal cortex. This discovery may help explain why music evokes strong emotions and behaviors.

SourceDartmouth College·JournalScience·DateDec 12, 2002