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Channel: Medical Xpress news tagged with:human cognition
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Marijuana may help HIV patients keep mental stamina longer

A chemical found in marijuana, known as tetrahydrocannabinol, or THC, has been found to potentially slow the process in which mental decline can occur in up to 50 percent of HIV patients, says a new...

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CLOCK gene may hold answers to human brain evolution

Scientists have long sought to unravel the molecular mysteries that make the human brain special: What processes drove its evolution through the millennia? Which genes are critical to cognitive...

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Study examines drowning-induced brain injury in children

A new study indicates that children who develop brain injury due to non-fatal drowning often experience severe motor deficits but maintain relatively intact perceptual and cognitive capabilities.

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Identifying genes key to human memory: Insights from genetics and cognitive...

Researchers have identified more than 100 genes important for memory in people. The study is the first to identify correlations between gene data and brain activity during memory processing, providing...

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Imaging links structural brain changes and cognitive decline in Parkinson's

People with Parkinson's disease and cognitive impairment have disruptions in their brain networks that can be seen on a type of MRI, according to a study appearing online in the journal Radiology.

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Brain training may help keep seniors on the road

Older adults who participate in training designed to improve cognitive ability are more likely to continue driving over the next 10 years than those who do not, according to health researchers.

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Trial drug shows 'impressive' Alzheimer's action: study

An experimental drug cleared protein buildup in the brains of people with mild Alzheimer's disease and slowed their mental decline, the results of a preliminary trial showed Wednesday.

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Researchers investigate the reading habits of children and adults

As part of a project from the DeveL (Development Lexicon Project) study, scientists at the Berlin-based Max Planck Institute for Human Development are studying how words are read by people of different...

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Silencing of gene affects people's social lives, study shows

A team of researchers led by psychologists at the University of Georgia have found that the silencing of a specific gene may affect human social behavior, including a person's ability to form healthy...

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How the brain merges the senses

Utilizing information from all the senses is critical for building a robust and rich representation of our surroundings. Given the wealth of multisensory information constantly bombarding us, however,...

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Evaluating animal threats and human intentions uses common brain network

Assessing whether a fluffy bunny or a giant spider poses a threat to our safety happens automatically. New research suggests the same brain areas may be involved in both detecting threats posed by...

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Study finds safer stem cell-derived therapy for brain radiation recovery

While stem cells have shown promise for treating brain regions damaged by cancer radiation treatments, University of California, Irvine researchers have found that microscopic vesicles isolated from...

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Invading the brain to understand and repair cognition

People are using brain-machine interfaces to restore motor function in ways never before possible - through limb prosthetics and exoskletons. But technologies to repair and improve cognition have been...

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Re-energizing the aging brain

The human brain has a prodigious demand for energy—20 to 30% of the body's energy budget. In the course of normal aging, in people with neurodegenerative diseases or mental disorders, or in periods of...

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What you know can affect how you see

Objects—everything from cars, birds and faces to letters of the alphabet—look significantly different to people familiar with them, a new study suggests.

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Intelligence 'networks' discovered in brain for the first time

Scientists from Imperial College London have identified for the first time two clusters of genes linked to human intelligence.

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How brain architecture leads to abstract thought

Using 20 years of functional magnetic resonance imaging (fMRI) data from tens of thousands of brain imaging experiments, computational neuroscientists Hava Siegelmann and a postdoctoral colleague at...

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Brain networking: Researchers use brain scans to determine the mechanism...

The human brain does not come with an operating manual. However, a group of scientists from UC Santa Barbara and the University of Pennsylvania have developed a way to convert structural brain imaging...

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Odds of longevity for summer romances

Sun, sand, surf and a smile across a crowded beach might spark a summer romance, but once the season passes, will the glow endure?

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Social groups and emotions

The semantic representation of social groups involves areas of the brain associated with processing emotions. So says a study at SISSA in collaboration with the University of Trieste and the University...

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