Genes > Brain Processes = Behavior Coming? Probably

Boy, this technology around genes is evolving very fast and getting cheaper. Gene Regulatory Networks In The Bee Brain Linked To Behavior — September 26, 2011 A new study reveals that distinct networks of genes in the honey bee brain contribute to specific behaviors, such as foraging or aggression, researchers report. … common, naturally occurring behaviors […]

When Humans Almost Died Off

The first thing you see is obvious: our ancestors went through two different phases of population “bottlenecking” (constriction): one occurred about three million years ago, when a large population declined to around 10,000 individuals. The authors note that while this may reflect population size decline associated with the origin of hominins after our split with the lineage […]

Hostile, Angry and a Tea Partier? Blame It Low Serotonin Levels from Your Parents

Bottom Line: “ (In) individuals have a natural tendency to behave aggressively…The communications between the amygdala and the prefrontal cortex was weaker….Weak’ communications means that it is more difficult for the prefrontal cortex to control the feelings of anger that are generated.” Take Aways: Fluctuations of serotonin levels in the brain, which often occur when […]