News from Around the World

Clearing clumps of protein in aging neural stem cells boosts their activity

Young, resting neural stem cells in the brains of mice store large clumps of proteins in specialized cellular trash compartments known as lysosomes, researchers have found.

Mar 16, 2018 | 05:12 am Read More

Getting lost: Why older people might lose their way

Researchers have found a possible explanation for the difficulty in spatial orientation experienced sometimes by elderly people. In the brains of older adults, they detected an unstable activity in an area that is central for spatial navigation.

Mar 16, 2018 | 05:07 am Read More

Neuroscientists identify brain circuit that integrates head motion with visual signals

Neuroscientists have identified a circuit in the primary visual cortex (V1) of the brain that integrates head- and visual-motion signals. The study elucidates the mechanisms by which visual and vestibular inputs to the brain sum together to enable appropriate behavioral[…]

Mar 16, 2018 | 04:06 am Read More

Cell therapy could improve brain function for Alzheimer's disease

Inhibitory interneurons are particularly important for managing brain rhythms. Researchers have uncovered the therapeutic benefits of genetically improving these interneurons and transplanting them into the brain of a mouse model of Alzheimer's disease.

Mar 16, 2018 | 04:06 am Read More

Brain mechanism involved in language learning

Psychologists found that when we learn the names of unfamiliar objects, brain regions involved in learning actively predict the objects the names correspond to.

Mar 16, 2018 | 03:29 am Read More

The brain puts the memories warehouse in order while we sleep

During the hours of sleep the memory performs a cleaning shift. A study reveals that when we sleep, the neural connections that collect important information are strengthened and those created from irrelevant data are weakened until they get lost.

Mar 16, 2018 | 02:06 am Read More

Underlying cause of brain injury in stroke

New research shows how the drug QNZ-46 can help to lessen the effects of excess release of glutamate in the brain -- the main cause of brain injury in stroke. As stroke is the second leading cause of disability and[…]

Mar 16, 2018 | 01:17 am Read More

Scientists illuminate mechanism at play in learning

The process we call learning is in fact a well-orchestrated symphony of thousands of molecular reactions, but the exact interplay between these reactions remains largely unknown. Now, researchers have modeled the molecular basis of learning in the cerebellum, a part[…]

Mar 16, 2018 | 00:17 am Read More

Nightmares are common but underreported in US military personnel

A new study shows that a high percentage of military personnel with sleep disturbances met criteria for nightmare disorder, but few of them reported nightmares as a reason for sleep evaluation. Those with nightmare disorder had an increased risk of[…]

Mar 16, 2018 | 00:13 am Read More

Faulty cellular membrane 'mix' linked to Parkinson's disease

Working with lab-grown human brain cells, researchers report they have uncovered a much sought-after connection between one of the most common genetic mutations in Parkinson's disease and the formation of fatty plaques in the brain thought to contribute to the[…]

Mar 16, 2018 | 00:12 am Read More

Ion channel trio mediates painful heat sensing

Researchers have uncovered a trio of complementary ion channels in sensory neurons that mediate detection of acute, harmful heat. Having three redundant molecular heat-sensing mechanisms provides a powerful fail-safe mechanism that protects against burn injuries.

Mar 15, 2018 | 05:50 am Read More

Restoring movement sensation in upper limb amputation patients

A team of researchers has published first-of-its-kind findings on a new method of restoring natural movement sensation in patients with prosthetic arms. The research team has successfully engineered a sense of complex hand movement in patients with upper limb amputations.[…]

Mar 15, 2018 | 05:50 am Read More

Researchers link defects in a nuclear receptor in the brain to autism spectrum disorders

Scientists are reporting that defects in a portion of the brain's hippocampus, called the dentate gyrus, is regulated by the nuclear receptor LXR? (Liver X receptor Beta). The dentate gyrus, or DG, is responsible for emotion and memory and is[…]

Mar 15, 2018 | 05:49 am Read More

Making new memories is a balancing act

Salk scientists discover that brain storage capacity is dynamic and varies by region.

Mar 15, 2018 | 03:54 am Read More

Vision's role in vowel perception

Researchers found that the motion and configuration of a speaker's lips are key components of the information people gather when distinguishing vowels in speech.

Mar 15, 2018 | 03:02 am Read More

ADHD drugs increase brain glutamate, predict positive emotion in healthy people

New findings offer clues about how misused drugs affect healthy brains and hint at an undiscovered link between glutamate and mood.

Mar 15, 2018 | 02:09 am Read More

Scientists search for the clocks behind aging brain disorders

To understand the link between aging and neurodegenerative disorders such as Alzheimer's disease, scientists compared the genetic clocks that tick during the lives of normal and mutant flies. They found that altering the activity of a gene called Cdk5 appeared[…]

Mar 15, 2018 | 00:22 am Read More

Thyroid gene variation may increase risk for Alzheimer's disease in African Americans

African Americans with a common genetic variation are at increased risk for developing Alzheimer's disease, while European Americans with the same variation are not, according to a new study.

Mar 14, 2018 | 07:07 am Read More

Emotional suppression reduces memory of negative events

By peering at the brains of study subjects prompted to suppress negative emotions, scientists have gained new insights into how emotional regulation influences negative feelings and memories. The researchers hope the findings will lead to new methods to combat depression.

Mar 14, 2018 | 04:06 am Read More

Men and women have opposite genetic alterations in depression

Men and women with major depressive disorder (MDD) have opposite changes in the expression of the same genes, according to a new postmortem brain study. The findings indicate distinct pathology, and suggest that men and women may need different types[…]

Mar 14, 2018 | 04:06 am Read More