The article presents a historical approach to the study of modern technologies in the field of polygraphology, psychology and psychophysiology of detecting human emotions of international experience. The main purpose of this study is to identify the features of the relationship between the emotional sphere and approaches to detecting lies in humans. A rapidly developing society offers more and more modern technologies that can be overlooked in observation, but the apparatus and knowledge of psychological knowledge will help to build a holistic picture of the nature and behavior of a person, and even more so his intentions and attitudes, and make a true and reliable conclusion.

Lying stands out against the background of unapproved social and moral principles and norms; lying behavior is considered an unacceptable and ineffective model that influences other negative trends in society in a chain. The lie detector device is a complex assessment of the situation through the prism of relevance and adequacy, the ability to understand another person, the ability to understand the nature of emotions.

Constructive and competent examination is the key to peaceful living in society, which can be determined by the level of emotional intelligence.

The article presents modern approaches to the study of human emotions and presents the historical contribution of researchers to the lie detector apparatus.