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.
“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 […]
Honey Bees Study Finds That Insects Have Personality Too Individual honey bees actually differ in their desire or willingness 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?”
They found a direct link between GABA activation and dopamine suppression.