eLife Assessment
In this manuscript the authors examine correlations between intrinsic electrophysiological properties of HVC neurons projecting to Area X and the temporal structure of the birds' song. The study provides important insights into how the structure of vocalization can relate to intrinsic physiological properties of the neurons that are essential for learning the behavior. The evidence supporting the idea that song temporal structure is related to intrinsic physiology is solid and this research will be of general interest to researchers in the field and neurophysiologists.