Introduction:

Throughout history there have been systems of consciousness that allow us to more accurately interpret the environment, which in the case of our species allowed us to dominate matter and develop neurophysiological aspects so complex that they allow our species to wonder about its origin, physiology and existence.

Materials and methods:

Data were collected from various sources from various libraries that include neuroanatomy, psychology and ethology, and data obtained from geology, paleontology and archaeology, which guide us to reconstruct the phylogenetic history and ground it with current knowledge of neurology and psychiatry.

Results:

The appearance of complex systems such as the nervous system in species, expresses its greatest exponent the human nervous system, and based on stable evolutionary strategies, opened the way to develop more sophisticated systems of consciousness like ours.

Discussion:

The various hypotheses that attempt to explain the origin of our brain have revealed data that allow us to understand and interpret various forms of primitive and complex consciousness, which, even with great difficulty, allow us to reconstruct said origin, from various neurophysiological aspects and that lead us to trying to understand the very structure of the psyche, it seems to develop functionally and phylogenetically, from deep layers to superficial layers.

Conclusions:

We understand that the appearance of the nervous system and consciousness have a history, an important process to understand to interpret the origin of our brain and its relationship with consciousness, however, it still leaves many questions to be interpreted.

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