Sexual Deprivation Increases Ethanol Intake in Drosophila


Abstract: The brain’s reward systems reinforce behaviors required for species survival, including sex, food consumption, and social interaction. Drugs of abuse co-opt these neural pathways, which can lead to addiction.  Continue reading


“Overconsumption….may occur in an attempt to increase brain reward in less responsive systems”


“Women who possess genetic modifications associated with low activity of the reward neurotransmitter dopamine in the brain when they imagine eating appetizing foods are more prone to weight gain.

  • Women who had lower activity in food reward regions of the brain and who had genetic modifications associated with lower dopamine activity showed the greatest weight gain after one year
  • People who experience blunted reward from food may compensate by overeating, increasing risk for unhealthy weight gain.””

“When we confront everyday social problems, we resort to the ancient emotional, cognitive and behavioral algorithms that crowd our minds, and often let this automatic pilot help us navigate through the difficult and dangerous, but always fascinating, waters of human social affairs.”


Honey Bees Study Finds That Insects Have Personality Too


Honey Bees Study Finds That Insects Have Personality Too

Individual honey bees actually differ in their desire or willingness[2] to perform particular tasks.  These differences may be due, in part, to variability in the bees’ personalities…

“In humans, differences in novelty-seeking are a component of personality,” he said. “Could insects also have personalities?” Continue reading

“A personality profile marked by overly gregarious yet anxious behavior is rooted in abnormal development of a circuit hub buried deep in the front center of the brain, say scientists at the National Institutes of Health.”