Social engagement and attachment: a phylogenetic perspective

Area of Science:

• Neuroscience
• Behavioral Biology
• Psychology

Background:

• Social engagement is vital for psychological and physical well-being.
• Understanding the neurophysiological underpinnings of social connection is essential.
• The Polyvagal Theory offers a framework for examining social behaviors.

Purpose of the Study:

• To present a model of social engagement based on the Polyvagal Theory.
• To elucidate the phylogenetic organization of neural circuits involved in social behaviors and defense.
• To explain the role of neuroception of safety in facilitating social engagement and bonding.

Main Methods:

• The study proposes a model derived from the Polyvagal Theory.
• It emphasizes a phylogenetic approach to understanding neural mechanisms.
• The model integrates concepts of neuroception, risk assessment, and adaptive behavior regulation.

Main Results:

• Neural circuits for social engagement and defense (fight, flight, freeze) are phylogenetically organized.
• The nervous system non-consciously assesses environmental risk to regulate behavior.
• A neuroception of safety is necessary for social engagement and its benefits.
• Immobilization without fear, essential for bonding, involves oxytocin and co-opts freeze circuits.

Conclusions:

• The presented model offers a phylogenetic interpretation of neural mechanisms.
• It explains behavioral and physiological aspects of stress and psychiatric disorders.
• Social engagement and bonding are fundamentally linked to neuroception of safety and specific neural pathways.