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Rapid loss of smell predicts dementia and smaller brain areas linked to Alzheimer’s

New research shows that a decline in a person’s sense of smell over time predicts their loss of cognitive function and can foretell structural changes in regions of the brain that are important in Alzheimer’s disease and dementia. The findings could le…

Research reveals role of genetic variants on psychedelics’ therapeutic effects

Researchers report that common genetic variations in one serotonin receptor could be a reason why people with psychiatric conditions, such as depression, respond differently to psychedelic treatments.

Working memory depends on reciprocal interactions across the brain

Neuroscientists have investigated the reciprocal interactions between two brain regions that represent visual working memory in mice. The team found that communication between these two loci of working memory, parietal cortex and premotor cortex, was c…

Specific brain responses to traumatic stress linked to PTSD risk

Results from the largest prospective study of its kind indicate that in the initial days and weeks after experiencing trauma, individuals facing potentially threatening situations who had less activity in their hippocampus developed more severe posttra…

Researchers confirm brain region’s role in mind-body communication

Researchers have produced definitive evidence that a specific region in the brain, called the subthalamic nucleus, is critical to governing the mind’s communication with the body’s motor control system. The findings, stemming from innovative experiment…

Researchers use MRI to show brain changes, differences in children with ADHD

Scientists conducted a study to image the neural activity analogues to cognitive flexibility and discover differences in the brain activity of children with ADHD and those without.

Are effects of lead poisoning ‘reversible’ with early enrichment? Animal study

New research shows that the majority of gene changes in the brain caused by lead can be reversed by raising animals in stimulating environments.

Making sense of socially enhanced aggression in the brain

Researchers have identified the brain regions responsible for the increased aggression that occurs when male mice spend time with other male mice before an aggressive encounter — a concept known as social instigation. When social instigation occurs, c…

Brain stimulation improves motor skill learning at older age

Non-invasive brain stimulation can restore optimal motor skill acquisition in people with diminished learning capabilities, e.g. due to age, according to a new study.

Racial discrimination affects brain microstructure, study finds

A new study shows that the experience of racial discrimination affects the microstructure of the brain, as well as increasing the risk for health disorders.