# The Unique Personality Trait Theory: a general system theory of human personality

Autores UPV | Micó Ruiz, Juan Carlos |
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Año | 2014 |

CONGRESO | The Unique Personality Trait Theory: a general system theory of human personality |

## Abstract

The main objective of General Systems Theory is to find a universal language for science by constructing a general theory of systems. Despite the different attempts to find this language, it is yet far to be reached. However, stating particular theories to solve different general problems of knowledge is a way to reach the subsequent general theory of systems. One of the general problems in the context of the behavioral sciences is to understand human personality. The Unique Personality Trait Theory (UPTT) is the system theory presented in this work to solve this problem. On the base of Salvador Amigó¿s qualitative previuos works, himself together with Antonio Caselles and Joan C. Micó have developed the UPTT as a theory with a hard mathematical content. The main features of the UPTT, described in the different papers published by the three authors, are: 1. The existence of a unique trait to understand the overall human personality: the General Factor of Personality (GFP). 2. The existence of a biological base for the GFP, given by the activation level of the organism¿s stress system. 3. The dynamic nature of the GFP, which can be described by a system of coupled differential equations, called as the response model. 4. The possibility to measure the GFP at the psychological and biological levels, stating relationships between both levels of description and enlarging the way to approach the bodymind problem. Recently, the investigations of the authors have extended the UPTT to describe the different traits with which the GFP is related: the Big Five traits, i.e., Extraversion, Neuroticism, Openness, Conscientiousness and Agreeableness. It has been proved that these traits can be reproduced also mathematically through the response model. In addition, from the proof of the response model invariance among traits, a new model that relates them is found. This model has been called the bridge model.