Abstract
Craig reviews interoception — how the brain represents the physiological condition of the body and how that signal grounds awareness, emotion, and motivated action.
Craig, A. D. (2002). Nature Reviews Neuroscience, 3(8), 655–666. DOI
Key findings
- Body-state sense — Interoception is a distinct sensory channel — not reducible to five exteroceptive senses.
- Pathway map — Lamina I spinothalamic routes carry homeostatic signals to insular cortex in his model.
- Feeling bridge — Conscious feelings track integrated body-state representations — story follows signal.
- Action guidance — Interoceptive error drives corrective behaviour — thirst, breath, social pain share logic.
Limits
2002 review — pathways refined in later Craig and colleagues work.