<unk>  is a psychological analogy of the transient function(s) of the mind, drawn from (amongst other things) the practice of neurology, and the principles of thermodynamics. In more detail,<unk>  is the study of human behavior from the point of view of motivation and drives, depending largely on the functional significance of emotion, and based on the assumption that an individual's total personality and reactions at any given time are the product of the interaction between their conscious/unconscious mind, genetic constitution and their environment.  In medical practice,<unk>  is defined as the systematized study and theory of the psychological forces that underlie human behavior, emphasizing the interplay between unconscious and conscious motivation and the functional significance of emotion. The original concept of<unk> " was developed by Sigmund Freud who, in the late 1870s, began to apply the principles of thermodynamics, predominantly those of Hermann von Helmholtz, to psychology. Freud suggested that psychological processes are flows of psychological energy in a complex brain, establishing<unk> " on the basis of psychological energy, which he referred to as libido.
In general,<unk> , also known as dynamic psychology, is the study of the interrelationship of various parts of the mind, personality, or psyche as they relate to mental, emotional, or motivational forces especially at the unconscious level. The mental forces involved in<unk>  are often divided into two parts: (a) interaction of emotional forces: the interaction of the emotional and motivational forces that affect behavior and mental states, especially on a subconscious level; (b) inner forces affecting behavior: the study of the emotional and motivational forces that affect behavior and states of mind;.
Based on the principles of thermodynamics of closed systems, Freud proposed that psychological energy was constant (hence, emotional changes consisted only in displacements) and that it tended to rest (point attractor) through discharge (catharsis).
In mate selection psychology,<unk>  is defined as the study of the forces, motives, and energy generated by the deepest of human needs.
In general,<unk>  studies the transformations and exchanges of "psychic energy" within the personality. A focus in<unk>  is the connection between the energetics of emotional states in the id, ego, and superego as they relate to early childhood developments and processes. At the heart of psychological processes, according to Freud, is the ego, which he envisions as battling with three forces: the id, the super-ego, and the outside world.  Hence, the basic<unk> model focuses on the dynamic interactions between the id, ego, and superego.<unk> , subsequently, attempts to explain or interpret behavior or mental states in terms of innate emotional forces or processes.
Psychodynamics
Emotion
Face time
Action potential
Symptom
Theory of mind
Face
Face perception