**Abstract**

This chapter provides a systemic perspective of human behavior, which reformulates the concept of effective behavior and cognition that derive from the classical vision of neuroscience and psychology based on the Cartesian reductionist functionalist paradigm. This systemic perspective, which is based on the theory of autopoiesis, proposes that the act of perceiving proprioception is decisive in the capacity of the human being to differentiate himself from an external space within which he is situated; a phenomenon that we will denominate "proprioceptive perception". This complex phenomenon of dynamic character emerges from the relationship between the domains of the body and language in the individual's relationship with their environment. Furthermore, from this systemic perspective, we will present the emotional states as cognitive states necessary for the conservation of the individual's living identity and the close relationship they have with the sensorimotor patterns and proprioceptive perception. This chapter answers the question of how proprioceptive perception affects the human being's experience of being different from others and from the environment in which they find themselves, having the possibility of being aware of themselves and of the world they perceive - in a present - within the environment in which they find themselves. And it explains how this phenomenon modulates its modes of emotion in congruence with what occurs in its present.

**Keywords:** autopoiesis, three-dimensionality of behavior, emotions, sensorimotor correlation, posture, sensorimotor pattern, emotional states, proprioception, perception
