by Yohan J. John
Ridiculing the intellectual backwardness of our forebears is a popular pastime. How silly our ancestors were! They thought the earth was flat! They believed in dragons and fairies! And even when they started to emerge from humanity's childhood, they came up with ideas like phlogiston! And luminiferous aether! Among neuroscientists, one of the most well-known cautionary tales is that of phrenology: the 19th century “science” that claimed to be able to peer into your soul by measuring bumps and dents on your head. The idea was that these hills and valleys were signs of size differences in areas dedicated to mental faculties such as “amativeness”, “concentrativeness”, “aquisitiveness”, “wit” and “conscientiousness”. So a bump near your zone of “amativeness” would mean that your brain has allocated additional resources towards the pursuit of love and sex. It all sounds quaint and Victorian — I imagine steampunk authors have taken the idea and run with it.
But if we strip away the old-fashioned terminology, how different is the concept of a brain area for “wit” from the concept of a “cognitive area” in the brain? How different is the idea of a center of “amativeness” from the idea that oxytocin is a love molecule? And is the idea that conscientiousness is baked into the brain any different from the idea that morality or altruism is baked into the genome?
