Why psychological perception of any danger causes organism response? The answer is in human anatomy, more exactly, in the reasons of pain appearing. Is psychological pain similar to physical one?
How pain occurs? With physical pain everything is quite clear. We do not take into consideration simple motor reflexes that are performed under control of spinal cord.
During physical receptor sensation the nervous impulse is transmitted via nerves to corresponding brain part, then the brain transmits response impulse to an organ. Occurs feeling of pain, in other words klendusity is responding.
How psychological pain occurs? Our organism has such feature as self-regulation of all physiological processes, in other words, brain responses on the change in the chemical processes in the organism.
Probably, under the influence of emotions in the organism occurs some kind of change, for example, in blood composition, then it is transmitted to the brain, and again the response impulse from the brain is transmitted to one of organs and thus pain occurs. Let it call the psychological cause of the pain.
Now we should understand how emotions influence on physical condition of organism. It is necessary to understand the complicated organization both of nervous system and mentality. For that purpose there is need in a specialist.
For example, when you fear darkness you suffer from heartache, woodiness in blossom, discomfort in throat. You feel like somebody stops your breath. Here you fear not darkness itself but a thing that can stand in the darkness. It is based on received information about it during your life. You fear that something can play the devil with you. A little child never fears darkness until he was told what can be in it. Let it call conscious fear.
Such phobias as fear of a concrete situation or object, that frightens you with something and rises the feeling of fear and horror, are also referred to conscious fear because you feel this fear in result of your bad experience or negative information received from someone. What is the nature of this fear? How does this fear occur? What do I feel? Lack of confidence. Embarrassment. Dejection. Inactivity. Anxiety. Blame. Injury. Consternation. Stress. Panic. You feel difficulty in your blossom. Respiratory difficulty. Cold sweat. These are psychological and physical sensations in your body. And that means that fear is interconnected with other negative emotions. One thing causes another, comes from the other, but means one and the same thing.
What about unconscious fear or, in other words, a simple fear not based on the experience? What can it be?
This can be the fear of the uncertainty, fear of the unidentified. For example, children fear noises, unknown things. Generally, from the very beginning of mankind history people always were frightened of inexplicable acts of the nature. Or their fear was based on phenomenon seen before?
For example, fear of unknown future, fear of possible fantasized negative events. How do we find out that these are bad events? We compare possible events with experienced negative ones.
It turns out that we fear unknown things because we fear bad unknown things. We do not fear good unknown things because they arouse joy. And when we feel fear, all good events we do forget. In other words, when we think about an unknown event in our mind a bad image appears, as a result occurs a feeling of fear based on negative early experienced fear. It means that fear of unknown thing is a conscious fear.