[Theory of functional systems and integrative physiology]

Area of Science:

• Neuroscience
• Systems Biology

Context:

• The theory of functional systems, proposed by P. K. Anokhin, provides a framework for understanding the body's complex integrative activities.
• Functional systems are conceptualized as fundamental units responsible for these activities, exhibiting self-organization and self-regulation.

Purpose:

• To explore the integrative properties of individual and interacting functional systems within the body.
• To elucidate the brain's integrative mechanisms as revealed by the theory of functional systems.
• To emphasize the role of informational mechanisms in the integrative activities of functional systems.

Summary:

• The theory posits that functional systems are key units of integrative activity, characterized by self-organization, self-regulation, and hierarchical interactions.
• It has uncovered novel brain properties, including specific ascending influences from subcortical to cortical areas, diverse neuronal excitation convergence patterns, and system-specific chemical postsynaptic processes.
• Informational mechanisms underlying these integrative activities are a central focus.

Impact:

• Advances the understanding of the body's integrative processes through the lens of functional systems theory.
• Provides insights into the neurobiological underpinnings of complex behaviors and physiological functions.
• Highlights the importance of information processing in biological systems.