Figure 2
From: Nonassociative learning as gated neural integrator and differentiator in stimulus-response pathways
Response desensitization and phantom sensation. A. Schematic illustration of desensitization (D) in relation to habituation (H) and primary sensitization (S). The secondary pathway is desensitized by heterosynaptic STD (filled inner triangle, blue) secondary to the primary stimulus, leaving it dormant (broken line). B. Phantom sensation: following deafferentation, the primary stimulus ceases and the secondary pathway is re-sensitized, producing a phantom sensation.