This article attempts a brief introduction on the topic of cognitive sciences. By emphasizing cognitive linguistics, which separates in two positions will be part of the cognitive Sciences expressed with their linguistic function and is the heart matter, stands for a criticism about their lack of diagnostics. These positions of cognitive linguistics, whose paper are the neuro-linguistics and the cognitive linguistics, are presented in detail and both cognitively linguistic point of views are questioned for their scientific validity. Cognitive Linguistics is a field of cognitive science understood. Cognitive science tries with their research on Imitate human brain, which has arisen from this area, and also Artificial Intelligent researches in which the brain researchers with their colleagues from the field of computer technology try to develop artificialintelligence as an objective. The contribution of the linguistic component directs the Cognitive Linguistics in their research.