Washington's Blog
Monday, February 22, 2010

Biologists and sociologists tell us that our brains evolved in small groups or tribes.

As one example of how profoundly the small-group environment affected our brains, Daily Galaxy points out:

Research shows that one of the most powerful ways to stimulate more buying is celebrity endorsement. Neurologists at Erasmus University in Rotterdam report that our ability to weigh desirability and value doesn’t function normally if an item is endorsed by a well-known face. This lights up the brain’s dorsal claudate nucleus, which is involved in trust and learning. Areas linked to longer-term memory storage also fire up. Our minds overidentify with celebrities because we evolved in small tribes. If you knew someone, then they knew you. If you didn’t attack each other, you were probably pals.

"If we're looking at the highlights of human development, you have to look at the evolution of the organism and then at the development of its interaction with the environment. Evolution of the organism will begin with the evolution of life perceived through the hominid coming to the evolution of mankind. Neanderthal and Cro-Magnon man. Now, interestingly, what you're looking at here are three strings: biological, anthropological — development of the cities — and cultural, which is human expression.