The SOL Cognitive Node Enhancer (SCNE-1) is a seven-transducer wearable headset that maps the SOL node geometry onto the six bilateral functional brain regions plus the central brainstem/thalamic axis. Each transducer delivers a node-specific phi-locked acoustic frequency to its corresponding cortical region, entraining inter-hemispheric gamma coherence (40Hz) across all three bilateral pairs simultaneously. The result is measurable whole-brain coherence enhancement without pharmacological inter