Tapping therapy for Visual Snow Syndrome potentially modulates neurological processing by stimulating acupressure points and activating the parasympathetic nervous system, which may help reduce cortical hyperexcitability and neural hyperarousal associated with the syndrome. The technique is hypothesized to regulate neural signaling pathways and potentially decrease aberrant sensory processing through neuroplastic mechanisms, though more research is needed to fully elucidate its precise pharmacodynamic effects.