A new technique allowed researchers to evaluate the distribution of lithium levels in the human brain. Findings revealed those without depression had significantly more lithium in the brain's white matter than in gray matter. By contrast, those with depression or suicidal ideations had more balanced distribution of lithium in both white and gray matter.
Gray matter was reduced in areas of the frontal gyri of patients with COVID-19. Significant gray matter reductions were seen in those who received oxygen therapy and in those who reported fever. The findings suggest coronavirus affects the frontotemporal brain network due to reduced oxygen and fever.
Damage to highly connected regions of white matter in the brain following injury is more predictive of cognitive impairment than damage to highly connected gray matter hubs.
Children who snore while they sleep have thinner gray matter in several areas of the frontal lobes. Significantly, the reduction in gray matter correlated with behavioral problems associated with sleep apnea. Some behavioral problems experienced include hyperactivity, increased aggression, and attention deficits.
Frequent caffeine consumption reduces gray matter volume in areas of the right medial temporal lobe, including the hippocampus. Ten days of "caffeine abstinence" helps regenerate gray matter.
Growing up speaking two or more languages was associated with increased gray matter in the brain during adulthood.
Researchers reduced the power requirements of neural interfaces while improving their accuracy by tuning into a subset of brain waves.
A worldwide scientific collaboration has produced the first genetic map of the cerebral cortex. The map identifies more than 300 genetic variants that influence cortical structure and play roles in psychiatric disorders.
Efficient connection pathways across the entire brain provide a neural network that supports general cognitive function and ability. Higher fractional anisotropy is associated with higher IQ.