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Anatomy of the Human Brain: Part 3

Many shudder to think that we may have the brain of a reptile.  It’s what we came in with, which isn’t really that bad since it performs functions the other sections of the brain don’t.  The disheartening thing is that so many of us seldom get out of that part and into the higher forms of brain function.

The reptilian section of the brain is basically the same in humans as has been for millions of years in reptiles, we can only assume that many of the traits of reptiles will be exhibited in human behavior. Social hierarchy is a reptilian brain function, so is maintaining the status quo, the pecking order, bureaucracy and follow the leader.

Maybe it’s not a problem with the brain section.  Genetics is a catch all when all else fails: maybe we just suffer from some basic flaws of logic.

Our favored brain section determines most decisions.

                      The decisions we make determine the lives we lead.

You’ll be glad to know that we’ve evolved far enough to make it to the neo-cortex, intellectual, creative brain.  Sometimes when we’re busy blowing each other up and acting as if we have no brain at all, it makes one stop and wonder whether we really have evolved from the lower reptilian brain and made the jump mentally, or if it’s only been a physical manifestation.

The neo-cortex brain is the most recent to develop.  Humans are the only species to have this part of the total brain package.  This area is where all intellectual, intuitive, conceptual and reasoning begins.  We still rely on the lower brain forms for our connection with the outer environment, expressions, relationships, emotions, social behaviors and cognitive structuring.  If we dwell in, or are too dependent on the intellectual aspects of the brain, it’s possible to lose all social skills.  This is also true if we spend too much time in the left hemisphere of the brain.   

The neo-cortex contains the vast majority of the brains 100 billion neurons, although it’s estimated that only 3 to 10% are actually developed.  Development of this portion of the brain begins at approximately age 4.

Myelination, bridging with fatty substance covered neurons, between the right and left hemispheres doesn’t occur until sometime between the ages of 9 and 12.  The neo-cortex is capable of creating new modes of thinking and responding to internal and external generated ideas.  The areas of association are designed for, and capable of, receiving information from visual, auditory and kinesthetic (through movement and muscles, etc.) sources.  This portion of the brain makes receiving and processing information from all the inner and outer areas and then integrating that with the information received from the various association areas possible.  This creates the feasibility for coordination of thought at a higher level.  The non-specific association areas are 8 layers thick and made up of non-myelinated neurons.  Non-myelination makes it easier for them to make new connections. 

Rational survival planning, unknown in the lower brain forms, came into being with the neo-cortex.  This made it possible for humans to survive in extremely adverse climates and under circumstances where mammals and reptiles, neither environmentally adapted nor possessing this section of brain, would perish.

Sensory input involved with this area of the brain is mainly concerned with visual and auditory sources that originate outside of the body.  When we look at the overall specialization period of development for this area of the brain we generally find that: those who spend an excessive amount of their time in the logic section of the brain during the specialization development period will usually, later in life, consider the body as only something necessary to carry the brain around. 

Those who spend an inordinate amount in the more physical parts of the brain will generally find themselves more academically challenged if they’re involved with athletic scholarships.  If between the ages of 4 and 16, this includes the growth spurt plateaus we briefly looked at previously, a child can develop both hemispheres of the brain through involvement in logical and physical activities.  By doing that they will have the abilities for being more rounded later in life, logically, physically and socially.

The neo-cortex posses the mode for rational thinking, intelligent and abstract thought, the capabilities for innovation and high level creativity and is important in long-term memory storage.  This is the section that loves challenges, change and possibilities.

Learning capabilities connected with this area are the ability to synthesize many different pieces of information, a high level of reasoning and wisdom, not sensory bound, having the capacity for pattern recognition and being able to think things through to an end that is beneficial for all concerned.

There is a portion of the brain that holds the evolutionary potential for the human species.  The frontal lobes, a subdivision of the neo-cortex, are continuing to develop and are sometimes referred to as the “angel brain.”  This area deals with the ability to control ones own behavior, is the center for compassion and altruism, reverence for all life, and the ability to forgo instant gratification.

It’s apparent that everyone’s in different stages of evolutionary brain development.  Some prefer to spend their time in the lower areas, some in the higher and some in between.  No one can claim complete development in the frontal lobes.

Just think, in a few years we can celebrate the 100th anniversary of the “War to end all wars.”

   

        

Larry Miller: I was born in Los Angeles in 1940. My father was a fighter pilot instructor during WWll and we moved from coast to coast, maybe that’s where I got the nomad in my blood. After graduating from high school in 1958 I joined the Marines. That lifestyle wasn’t for me and upon my discharge I went on with my life, and have never looked back. I worked briefly for a Caterpillar dealer in Riverside, CA before moving back to N. California where I was a welder and truck driver for a chemical company. Truck driving wasn’t my calling anymore than being in the Marines, and I went back to work for another Caterpillar dealer steam cleaning dirty tractor parts and welding. They sent me to schools, lots and lots of schools. I spent as much time going to trade schools as I did at work. I went from cleaning parts to apprentice field mechanic, to mechanic to the parts department to satellite store manager in less than two years. They wanted me to move to Sacramento and be a salesman: I moved to Oregon to learn to commune with nature. I went to work for another heavy equipment dealer and was later contacted by the World’s largest Lorraine Crane dealer and offered the position of purchasing agent and general parts manager. In 1967 I was offered a line of automotive parts and supplies and went into business for myself. My business revolved around eleven race cars that we maintained for others, driving race cars professionally and maintaining high end sports cars. I was a championship and regional champion driver. My business was the largest import parts and service, non dealer, in the state until I sold it in 1979. We went sailing in 79, first to Mexico and then Hawaii. I was an award winning Trans-Pacific sailor and sailor of the year, Hawaii, Island of Kauai. An opportunity presented itself in Hawaii during 1981 and I was back in business, importing Japanese auto body and hard parts. I also felt the pull to write and began freelancing for magazines and newspapers in 1982. My main focus in my articles is, and always has been, health, wellness and fitness. Most of us have heard the saying, “Time is all we have.” I disagree. Our health is all we have, because without our health, we have no time. I was a US Olympic team hopeful in racewalking and held all the records for the state of Hawaii. As a sponsored athlete in my forties, I finished first in nine marathons in a row in my division, qualified for the Ironman® and was the state USCF cycling champion five times in Hawaii and Oregon. Celinda and I were married in 1988 after a three year engagement. We sold our businesses and organic farm and sailed back to Oregon. After our sailboat boat was sold, we moved to Joseph, Oregon, two miles from the trailhead into the Eagle Cap Wilderness. We were caregivers for my mother the last ten years she was alive. We moved to New Mexico in 1995 because it was too cold for my mom in Oregon during the winters. Celinda designed, and I engineered and built our strawbale house. I began writing the weekly health column for a local newspaper in 1996, and still do. In 2000, I took the summer off to do a four month, 4000 mile, hike, bike and kayak odyssey. I’d been writing health, fitness and sports articles since 1982 and the journey produced a full-length, nonfiction, first person adventure book, Yol Bolsun, May There Be A Road, which can be bought from Amazon.com and others over the Internet. The summer of 2001 was spent hiking. kayaking, fishing and exploring the southwest. In 2002 Celinda and I spent the summer in Canada learning the hospitality business at a resort in preparation for doing promotion for the resort in the US. Most of 2003 was spent reestablishing the trees and landscape that had died during the stay in Canada. We had a house sitter and the house sitter had an ex-husband, and that’s a long story. In July of 2004 I did a solo kayak trip on the Snake River, taking pictures, writing articles and pencil sketching the journey. I hope to do another kayak adventure on the Snake River during the summer of 2008, on the section I missed in 2000 and 2004. In 2005, I returned to Canada to the resort where we’d spent 2002. I was supposed to be there for the month of June. I’d contacted people I’d met in 2002 and they came back to Canada to fish, hike and spend time at the resort, Echo Valley Ranch and Spa, while I was there. My one month became five and then it was off to Spain to do the El Camino de Santiago as a travel companion with one of the guests who’d returned to Canada in June. During the summer of 2006 a friend from Ireland, who I’d met in Spain the year before, came to visit in NM and we fished, hiked and explored the White Mountains of AZ. He’d never slept out in the wild in a tent before, and it was quite an experience, for both of us. My newspaper articles were put on the Internet beginning in 2002. I was asked to give public speaking engagements, photo and video presentations, on various subjects for the library in Deming, NM and continue to do so. In 2006 I videoed and produced a DVD for the Smithsonian Institute’s travel exhibit “Between Fences.” NMFILMS had a conference by invitation only, which I attended. While attending the conference, I realized that film making wasn’t what I wanted to do but I still wanted to use my sixteen years of experience and enjoyment of videoing and photography. During the winter of 2005, I discovered that no one on record had ever run from the Arizona border to the Texas border, a distance of 165 miles. During the spring and summer of 2006 I trained for the run and the run was completed in October, 2006. In late 2005, I began building and maintaining websites incorporating all the things I enjoyed about video, photography, travel and the out of doors. 2007 has been a summer of upgrading the home and property which resulted in a downgrading of my enthusiasm for being located in one place. If we don’t like what’s happening in our life, we need to change what we’re doing. Celinda and I are ready to pull up roots and move on. I guess I’ve come full circle. I’m ready to revert back to my childhood, and a nomadic lifestyle.
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