Answer:
The four main goals of psychology are to describe, explain, predict and control the behavior and mental processes of others.
The person who maintained that the actor should be coldly unemotional was Denis Diderot.
Denis Diderot was a French critic, philosopher, and writer, and he wrote in his "Paradox of the Actor" what a perfect actor would behave like. In his opinion, no emotions should be present when that person acts, but rather the actor should show rational intelligence and aesthetic judgment.
In the field of photography, there was a tough and controversial fight with regards to being considered as art form. Because of the diverse areas photography is used to and the variety of applications it derived into, it is made as a skeptical art medium. But, because of its diverse usage like scientific photography and commercial photography, mass distribution of modern cameras, digital cameras make it hard to be considered as an art form.Nowadays, photography rose to popularity and it is already considered as an art of like any other. Multiple museums and galleries showcasing photographic works are already built pushing it to fame, thus considered as modern art form.
