Table 1.

Modeling behavior dynamics.

Number of individuals	Approaches	Instruments and theories
One individual $\{\begin{array}{l}\to ■Inputsystem\\ ■\to Outputsystem\end{array}$ TCP/IP port in NeuroVirtual 3D to create a bridge between real behavior and virtual environments	Psychology Psychophysiology Systems HCI Biofeedback Virtual Reality	• Presence • Virtual environments • Social and cultural cues	Environment affects my behavior
		• Behavior manifestation • Behavior influence on Virtual Environment	My behavior changes the environment
Two individuals ■⋯■Virtual Reality as a tool	Complex systems	$\begin{array}{l}\text{Entropy}\\ \text{Information}\\ \text{Characterization}\end{array}\}$ Mutual exchange of behavior (contagion)
Many individuals Networked and Ubiquitous	Mathematical Theoretical Empirical Social Ubiquitous	Virtual reality and mobile app Random networks and strategic models Network structure System dynamics Discrete event processes
		• Propagation of behaviors
		• Diffusion processes
Many individuals and artificial complex networks NeuroVirtual 3D with simulations and Artificial Life	Psychology Artificial Simulation based Artificial Intelligence Virtual Intelligence	$\begin{array}{l}\text{Agent-based models}\\ \text{Real-based Modeling}\end{array}\}$ Dynamic processes

Approaches, instruments, and theories considered on the basis of the number of individual taken into account: from only one individual interacting with environment to many real and modeled individual.