Briefly describe the nature of consciousness

1, the nature of consciousness is: generally believed that consciousness is the human brain on the objective things indirect and generalized subjective reflection, a more accurate statement should be: consciousness is the human brain's response to stimuli.

2. Consciousness is also the response of the human brain to stimuli. The result of consciousness acts on the outside world through the organs of the human body on the one hand, and on the other hand, it forms memory by changing the structure of the human brain itself.

Compared with the inorganic steel plate, the structure of the human brain is much more complex: the human brain consists of more than 10 billion brain cells, and each brain nerve cell has many nerve dendrites, which are connected to other brain nerves through synapses. These neural connections are intertwined with each other to form a huge and complicated neural network. This structure of the human brain determines the complexity of the outward form and the inward alteration of consciousness as a response.

We know that the structure of nerve cells is not much different from that of ordinary animal cells, and so far people have not found thinking and memory organizations in brain cells.

When the senses receive stimuli, these are converted into electrical or chemical signals, which are conducted through nerve fibers to the brain, where they are transmitted along connected channels of the neural network. Until the output is terminated by the formation of an effective response to an external stimulus. The process of conduction, i.e., the process of consciousness.

In conduction, the signal stimulation on the nerve channel will be in an active state, so that the attached blood vessels dilate, receive more oxygen for nutrition, and promote the growth of nerve cells and nerve dendrites on the channel, so that the nerve dendrites in the channel are more robust. The next time the same or similar stimulus is encountered, the signal passes through these channels more rapidly, reproducing past consciousness: this is memory.