Mind has physical existence. Mind is related with brain as brain is center of nervous system. We can precisely say that without brain there cannot be any psychology. Human brain is a very complex system which remains as yet to be understood completely. It is assumed that there are about 86 billion neurons, each connected with ten thousand others. Any physical alteration to the brain causes impact on mind, no matter whether injury or drugs. Human intelligence is connected with evolution of the human brain over the time.
One can say mind is product of the brain. The brain functioning, though complicated, is mostly based on the bio-electric signals. Rather functioning of neurons depends on bio-electricity generated in the body. Mind is overall functioning of the overall excited cells in the brain that varies or fluctuates with several physical reasons and thus changes expressions, moods, understanding etc. It is now proven that body creates electro-magnetic fields as well and also responds to outsider electro-magnetic fields This includes neurons and muscle cells. With magnetic fields many behavioral effects of different intensities have been reported. For example, a pulsed magnetic field originally designed for spectroscopic MRI was found to alleviate symptoms in bipolar patients while another MRI pulse had no effect. A whole-body exposure to a pulsed magnetic field was found to alter standing balance and pain perception in other studies. From this we can surmise that the human mind (brain) responds to the electro-magnetic pulses as the brain too is a generator of such signals of different intensities.
It has been observed that sudden changes in geo-magnetism too, such as geomagnetic storms, heavily impact on the minds of the people. It is not that all cells or neurons in the brain excited all the time. There are many centers in the brain those alternatively get activated with need and in response to the outer world, geo-magnetism is one.
Human psychology is closely associated with brain and so the mind. Brain has physical existence that is made of biological cells of variety of combinations. It has chemistry, also called as neuro-chemistry, that helps overall functioning of the brain, such as generating movement, speaking, thinking, listening, regulating the systems of the body, and countless others. Chemical changes in the brain, intentionally caused or otherwise, impacts feelings and emotions. The overall thinking pattern of the human being is entirely dependent on the bio-chemical activity of the brain. In ordinary course, when there is no sudden change in overall chemistry of the brain, the psychology of the person remains normal.
However, when we say ‘normal psychological condition’, we just want to explain, a psychology that is not disturbing the state of individual mind in question and others. Till the person exhibits accepted norms of the psychology, in thinking and behavior, as similar as others living in his society, the person is considered to be normal, though he may or may not have special qualities. But general psychology of a Mexican and American cannot be the same. Psychology of the Arab and Indian also cannot be the same. In India alone, geographically connected regions, say like Maharashtra and Gujrath, people have different general psychologies. Rather we can see general psychology or the way of thinking of the people changes with region to region that reflects in their culture. However, before going deep into this issue, we shall focus on the brain.
Brain is a physical entity, as I have already mentioned. Mind is product of it and so the individual psychology. No brain, if minutely analyzed, is identical with other and so the mind and psychology too is not identical. It is brain that gives sense of individuality. Besides genetics, individual brains overall chemical composition is unique. A slightest change in the composition can make transformation in individual psychology. Sometimes it is done with drugs or extra intake of minerals or vitamins.
Barring few, humans cannot consume minerals directly. They are mostly in compound form and in traces. Most of the minerals he gets from his diet. The food that he uses as his diet is produced from some land. The mineral composition in the diet depends mostly in which land it is produced. The water he drinks too consists of natural minerals and its composition too will depend on through which kind of rocks it has flowed and was gathered.
We are well aware that water of some wells is not considered to be potable for its being hard and of odd taste whereas some well carries potable water. And taste of well water will change with well to well and village to village…it is not because there is problem with water but the amount of the minerals diluted in the water and through which kind of rock-veins the water has been flown in to the well. Water will taste according to the diluted minerals and its density. It may remain potable or not. The people drinking water from the wells too consume the same minerals to the given amount those can affect their overall chemistry. This would be in very small quantity, but their physical chemistry will slightly differ than of the people those drink water from different well having different chemical composition.
In cosmopolitan era, we have forgotten many things. But if we probe it will dawn on us that the food grains of certain kind and produced in certain regions had different tastes. Brinjols grown around Krishna River and chilly of Kolhapur had distinct taste and flavor. What brings that? Certainly the mineral distribution in the lands where they are grown! The crop consumes the minerals spread in the soil and gives the distinct flavor. We could taste it and even now.
But just imagine the era, not far back…just few decades ago…the people living in the certain regions used to consume the food grown in the same lands for ages and drank water that had similar mineral composition. They ate same animal those grazed in the lands where grass too contained similar mineral composition.
What would be effect?
The overall body and thus brain will essentially contain the chemical composition that was in their regular diet. The people living in certain regions rich with some minerals in soil and devoid of some, show certain genetic deceases. Many deceases occur because of lack of some or other mineral or excess of some minerals. In body (and brain) minerals are in compound form. Chemical imbalance can cause the psychological stresses. Human genetics too is affected by regional geological differences. The regional genetic marks too are a proof to make our statement true. Otherwise how the scientists could define the regional genes?
Human being is thus, though separate from land, still he always is rooted with the land he lives in.
The overall chemical composition, though differing slightly from person to person, will remain identical in broader sense in every human being in certain region over the time. His genetic structure too will be impacted by the land he lives in.
And so will be impacted his general psychology, his way to look at the outer world and the way he expresses will be somewhat identical that makes his culture and language.
We will see in the next chapters, in details, after all it is land which determines the general psychology and language he speaks, he lives in!