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Medicinal marijuana: Patients battle stigma and misunderstanding

New research examines the experiences of California residents who have been prescribed medical marijuana and the stigma they experience from public opinion.  The findings indicate that the stigma of using medical marijuana may contribute to the under-…

Could neuroticism stem from overthinking?

Researchers have proposed a new cognitive model for neuroticism, suggesting that this personality trait could be explained by overthinking rather than sensitivity to threat.

Circadian genes go to sleep every day at the periphery of the nucleus

Mobility between different physical environments in the cell nucleus regulates the daily oscillations in the activity of genes that are controlled by the internal biological clock, according to a…

Self-control saps memory, study says

Cancelling an intended action seems to weaken memoryYou’re driving on a busy road and you intend to switch lanes when you suddenly realize that there’s a car in your blind spot.

Surprised? Cholinergic neurons send broadcasts enabling us to learn from the unexpected

Neuroscientists have discovered a set of cholinergic neurons in the basal forebrain that broadcast messages throughout the cerebral cortex, rapidly informing multiple distributed subregions of any surprising rewards or punishments — what scientists ca…

Creative and neurotic: Is neuroticism fueled by overthinking?

Psychologists have presented a new theory for why neurotic unhappiness and creativity go hand-in-hand. The authors argue that the part of the brain responsible for self-generated thought is highly active in neuroticism, which yields both of the trait’s…

Parkinson’s disease brain cells at risk of burnout, like an overheating motor

The death of brain cells in Parkinson’s disease may be caused by a form of cellular energy crisis in neurons that require unusually high quantities of energy to carry out their job of regulating movement, researchers have reported.

Alzheimer’s disease thought to be accelerated by an abnormal build-up of fat in the brain

People with Alzheimer’s disease have fat deposits in the brain. For the first time since the disease was described 109 years ago, researchers have discovered accumulations of fat droplets in the brain of patients who died from the disease and have id…

About 10 percent of mothers experienced depression two years after Hurricane Katrina

About 10 percent of mothers experienced chronic, persistent depressive symptoms two years after Hurricane Katrina slammed into the Gulf Coast, killing more than 1,800 people, displacing hundreds of thousands and causing widespread damage estimated at m…

Covert and overt forms of sexism are equally damaging to working women

Frequent sexist wisecracks, comments and office cultures where women are ignored are just as damaging to women as single instances of sexual coercion and unwanted sexual attention, according to a new…