Tyranny of the Prefrontal Cortex

How the prefrontal cortex has come to dominate human consciousness: Shamanism is one of those controversial terms that can spark innumerable debates among both academics and spiritual seekers, such as whether it should be identified with a specific region, how old it is, and even how it should be defined. For our purposes, a shaman can be understood as a particular person within a hunter-gatherer society who is believed to have the ability to mediate between the everyday world and the spirit worlds (of which there are frequently two: an upper world in the sky and a lower world beneath the earth)