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Exposure to air pollution in childhood is associated with reduced brain connectivity

A new study has found that children exposed to higher levels of air pollution in early and mid childhood have weaker connections between key brain regions. The findings highlight the potential impact of early exposure to air pollution on brain developm…

New study links lower proportions of certain sleep stages to brain changes associated with Alzheimer’s disease

New research reveals that lower proportions of specific sleep stages are associated with reduced brain volume in regions vulnerable to the development of Alzheimer’s disease over time.

Discrimination-related depression, anxiety pronounced among multiracial, White, Asian populations

A new study found that over half of US adults experienced some form of discrimination, and individuals with high exposure to discrimination have more than five times the chances of screening positive for depression, and five times the chances of screen…

PET imaging confirms direct involvement of dopamine in cognitive flexibility

Scientists have confirmed a neurobiochemical link between dopamine and cognitive flexibility. PET imaging shows that the brain increases dopamine production when completing cognitively demanding tasks, and that the more dopamine released, the more effi…

Early signs of heart problems linked to smaller brain volumes

People who have early signs of heart problems may also have changes in brain health that can be early signs of dementia, such as loss of brain volume, according to a meta-analysis. The meta-analysis does not prove that early heart problems cause loss o…

Study unlocks how diabetes distorts memory and reward processing

A research team says high blood sugar levels appear to weaken function in key part of brain, mimicking Alzheimer’s.

How did the large brain evolve?

Two specific genes that evolve exclusively in humans jointly influence the development of the cerebrum. Researchers have provided evidence that these genes contribute together to the evolutionary enlargement of the brain.

Neurons in brain that regulate energy levels and body temperature

Scientists have gained greater clarity in the brain regions and neurons that control metabolism, body temperature and energy use. A team of researchers discovered which chemicals influence the signals that control how much energy the body uses. Researc…

How movement affects the way the brain processes sound and sight

A research team has uncovered a fundamental principle of how the brain prioritizes vision and hearing differently depending on whether we are still or in motion. The study provides new insights into how movement alters the brain’s sensory decision-maki…

Study identifies Shisa7 gene as key driver in heroin addiction

Researchers have found a unique molecular signature and genes in the orbitofrontal cortex associated with heroin-seeking behavior. A preclinical rodent model implicated a gene called Shisa7 as the key predictor. A new study provides valuable insights i…