Primary Interoception is the raw, unfiltered sensing of your body's internal state. It is the connection between the brainstem and the insular cortex — the most ancient pathway of self-awareness.
Layers of Interoception
| Layer | What You Sense | Brain Region | |-------|---------------|-------------| | Primary | Heartbeat, breath rhythm, gut motility | Brainstem → Insula | | Emotional | Feelings as body sensations | Insula → Anterior Cingulate | | Reflective | Conscious body awareness | Prefrontal Cortex |
In ONDA Life
Part 1 ("I Am") focuses exclusively on primary interoception — learning to detect the most basic signals before interpreting them emotionally or cognitively. This is the "biological zero" from which all awareness emerges.
Training Primary Interoception
Practices include:
- •Heartbeat detection exercises
- •Breath observation without modification
- •Gut-feeling awareness scans
- •Temperature gradient sensing
References
- •Craig, Nat Rev Neurosci (2009) — interoception and insula