Sensory Neurobiology • August 25, 2026
Thalamic Gating Theory: How Psilocybin Modulates Cortico-Striatal Filters
The Thalamic Gating Model explains how 5-HT2A stimulation decreases thalamic filtering, permitting richer sensory streams to reach the prefrontal cortex.
The Thalamus as the Brain’s Sensory Gatekeeper
The thalamus filters millions of environmental sensory data bits per second, preventing executive cortical overload under normal resting conditions.
Opening the Thalamic Gate
5-HT2A agonism in the ventral striatum and thalamic reticular nucleus reduces inhibitory feedback, widening the sensory gate and enriching conscious perception.