Modern understanding of synesthesia increasingly centers on the nervous system — specifically, the chronic dysregulation that underlies many synesthesia presentations.
The Nervous System in Synesthesia
The autonomic nervous system has two primary states relevant to synesthesia:
Sympathetic activation ('fight or flight'): When chronically activated, drives anxiety-type synesthesia
Parasympathetic ('rest and digest'): The recovery state — undermined by synesthesia
Dorsal vagal shutdown: A third state — freeze/collapse — associated with depression-type synesthesia
Signs of Nervous System Dysregulation in Synesthesia
Chronic hyperarousal (always 'on edge'), difficulty relaxing even in safe environments, and feeling perpetually exhausted despite rest.
Regulating the Nervous System for Synesthesia
- Breathwork: Directly activates the parasympathetic nervous system
- Cold exposure: Controlled cold activates the vagus nerve, improving synesthesia
- Safe social engagement: Co-regulation through trusted relationships
- Movement: Discharges sympathetic activation accumulated in synesthesia