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Title: Comparative approaches to avian song system function: insights into auditory and motor processing. Author: Nealen PM, Schmidt MF. Journal: J Comp Physiol A Neuroethol Sens Neural Behav Physiol; 2002 Dec; 188(11-12):929-41. PubMed ID: 12471492. Abstract: Many fundamental advances in our understanding of basic neural function have been made using bird song learning and performance as a model system. These advances have included a greater understanding of higher-order neural processing, developmental and hormonal influences on behavior, and the realization that neurogenesis plays an important role in normal adult brain function. The great diversity of passerine birds and song-related behaviors they exhibit suggest that oscine songbirds are ideally suited for comparative studies. While the comparative approach has been used successfully in the past to study song-related phenomena at anatomical and behavioral levels, it has been underutilized in addressing questions at the neurophysiological level. Most neurophysiological studies of songbird auditory and motor processing have been performed in one species, the zebra finch (Taeniopygia guttata). We present and compare neurophysiological studies we have performed in zebra finches and song sparrows (Melospiza melodia), species that differ markedly in their singing behavior and song repertoire characteristics. Interspecific similarities, and striking differences, in song neural processing are apparent. While preliminary, these data suggest that comparative neurophysiological studies of species carefully chosen for their vocal repertoire and singing behavior will contribute significantly to our understanding of vertebrate sensory and motor neural processing.[Abstract] [Full Text] [Related] [New Search]