Figure 1. Relation between the song system in zebra finches and our model.
(A) Diagram of the major brain regions involved in birdsong. (B) Conceptual model inspired by the birdsong system. The line from output to tutor is dashed because the reinforcement signal can reach the tutor either directly or, as in songbirds, indirectly. (C) Plasticity rule measured in bird RA (measurement done in slice). When an HVC burst leads an LMAN burst by about , the HVC–RA synapse is strengthened, while coincident firing leads to suppression. Figure adapted from Mehaffey and Doupe (2015). (D) Plasticity rule in our model that mimics the Mehaffey and Doupe (2015) rule.