Background history begins century IV BC with Aristotle (384 322 BC). He was born in Estargia, to the North of Greece. Aristotle in Athens dealt with study and explain logic, epistemology, physics, biology, aesthetic and political ethics. He was the first philosopher of science. He created the discipline to analyze certain problems that arise in connection with the scientific explanation. At that time it was believed that there were two worlds: the perfect, unreal world of ideas and the world of the real matter, the imperfect. But Aristotle believed that there was only one world, the real, was considered as something sacred nature. For Aristotle the mind or psyche is the first act of all things, it is what makes possible that we feel and perceive.
In addition, there are three types of psyche: vegetative (of plants), sensitive (of animals) and rational (of man). Human psychology is based on the five senses. He believed that knowledge processes are produced through of the senses. He argued that the mind at the time of the birth is like a tabula rasa, lacked of innate ideas and everything depends on learning. On the other hand, Rene Descartes (1596-1650), considered the first modern man by his thought. He was very interested in mathematics, science and philosophy, and decided to combine their intellectual purposes with trips.
Descartes posited the doctrine of interactionism, whereby the body and mind influence each other to some extent, and the point of interaction between the two found in the pineal gland. Unlike Descartes, Locke (1960) is considered the founder of empiricism, the doctrine that posits that all knowledge (with the possible exception of logic and mathematics) is derived from the experience. Therefore, opposes radically to Plato, the scholastic philosophers and particularly to Descartes, asserting that ideas or intuitive general principles or a priori there are no.