Brain Laterality Demands that Two Human Species Exist: Evidence from Hemisity and Familaial Polariity

Abstract

The asymmetric location of functional units in the bilateral brain of animals and humans is the topic of brain laterality. So far, five lateralized functions have been discovered in humans: handedness, language ability, spatial skills, facial recognition, and emotion recognition. Recently a sixth asymmetric functional element bearing upon personality has been discovered. It is the larger side of the split bilateral anterior cingulate cortex (ACC). This appears to be the final output element of the brain’s executive system, of which by logic there can be only one. Hemisity is the binary measure, based upon eight MRI validated biophysical and questionnaire methods. It determines whether a person was born with the larger side of the ACC on the right or left side of the brain. Which side of the ACC is largest varies among the general population in a seemingly random manner, yet with a genetic basis because true-breeding lineages exist. The corpus callosum of subjects was up to three times larger when the larger ACC was on the right, than on the left. There are over 30 measurable differences in in individual characteristics and behaviors of male or female persons whose larger ACC was on the right compared to those with it on the left. Familial Polarity refers to the mating outcomes of the four reproductive pairs: RM-LF; RF-LM; RM-RF; LM-LF. The first two “opposites attract” reproductive pairs were true breeding, producing offspring that were “like father like son, like mother like daughter”. The offspring of the last two “same-same” pairs, were not true breeding, but rather their offspring were random in sex and hemisity. The simplest explanation for these results is that life on earth originated twice, once in deep sea vents and once in warm surface ponds. This resulted in two trees of life, one Patripolar (RM-LF) harem forming, the other Matripolar (RF-LM) territorial. Africa was the first subcontinent to evolve life to the level of primates, which upon docking populated the eastern hemisphere Eurasia in six waves. The first was the patripolar orangutans who settled in the empty far-east to become the orientals. Then next wave was the matripolar bonobos who stopped at India, and was followed by four later waves out of Africa. These alternating populations were immiscible and adversarial, with wars dominating their interfaces. This continues into the present day. Understanding Familial Polarity helps bring understanding and thus peace to the globe.