Universal Mind? Nature or Nurture?
I've been reading a book called The Way of The Shaman by Michael Harner. In it, I found three quotes on page 24 which describe how people perceive the world in different ways based on what could be cognitive biases. In the one quote Harner writes, 


  “In engaging in shamanic practice, one moves between what I term an
  Ordinary State of Consciousness (OSC) and a Shamanic State of
  Consciousness (SSC). These states of consciousness are the keys to
  understanding, for example, how Carlos Castaneda can speak of an
  ‘ordinary reality’ and a ‘nonordinary reality.’”


In another quote he writes,


  "To understand the deep-seated, emotional hostility that greeted the
  works of Castaneda in some quarters, one needs to keep in mind that
  this kind of prejudice is often involved. It is the counterpart of
  ethnocentrism between cultures. But in this case it is not the
  narrowness of someone’s cultural experience that is the fundamental
  issue, but the narrowness of someone’s conscious experience. The
  persons most prejudiced against a concept of nonordinary reality are
  those who have never experienced it. This might be termed
  cognicentrism, the analogue in consciousness of ethnocentrism."


In the third quote Harner writes,   


  "Anthropologists teach others to try to avoid the pitfalls of
  ethnocentrism by learning to understand a culture in terms of its own
  assumptions about reality. Western shamans can do a similar service
  with regard to cognicentrism. The anthropologists’ lesson is called
  cultural relativism. What Western shamans can try to create, to some
  degree, is cognitive relativism. Later, when an empirical knowledge of
  the experiences of the SSC is achieved, there may be a respect for its
  own assumptions. Then the time will perhaps be ripe for unprejudiced
  analysis of SSC experiences scientifically in OSC terms.”


I'm not sure if these quotes answer your question well enough since they attempt to explain the mind more than the brain but I thought they were somewhat related to what you've asked.