The answer is the mental status examination. The mental status examination is an organized evaluation of the interaction of the patient and cognitive operational. It comprises explanations of the appearance of the patient and general behavior, level of awareness and concentration, motor and speech action, mood and affect, thought and insight, assertiveness and understanding, the response induced in the examiner and finally advanced reasoning capabilities. The precise cognitive purposes of attentiveness, dialectal, memory, constructional capability and abstract cognitive are the most clinically significant.