Psychology

Beginning of Western Psychology
Western psychology is based on Greek philosophy, it was considered the study of the soul. In the middle of the 19th century psychology was considereda branch of philosophy and later was influenced by the work of Rene Descartes (1596-1650).
The first philosophers that thought about the mind were Plato and Aristotle,.
“The body andthe mind are two separate entities and mind could exist even after death”. (Aristotle, 2001)
Aristotle, was one of those who said the same thing that Plato, he thought that the bodywas the manifestation of the mind and the mind the manifestation of the body.
In 1879 Wilhelm Wundt, a German scientist, founded the first psychological laboratory in Leipzig,Germany. One of his objectives was to show that is not a physical activity for every mental activity, and one of his opinions was that psychologists should study the perception, emotion andfeeling.

The Emergence of German Experimental Psychology
As we know, that until the middle of 19th century, psychology was considered a branch of philosophy. According To ImmanuelKant (1786) "Psychology can not be made ​​into a" proper” because its phenomena can not science be rendered in mathematical form, among other reasons".
Johann Friedrich Herbartbelieved not the same as Immanuel Kant so he made ​​an attempt to develop a mathematical basis for a scientific psychology.
While that happened, individual differences in reaction timebecame in a critical issue in relation to astronomy, called personal equation.
The first investigations of Wilhelm Bessel Friedrich in Konigsberg Hirsch Adolf that led to the growth ofa highly accurate chronoscope made by Mathias Hip, and at the same time is based on the Charles Wheatstone design for an artifact that can gauge the accelerate of artillery shells.