%0 Journal Article %T Optical Imaging of Retinotopic Maps in a Small Songbird, the Zebra Finch %A Nina Keary %A Joe Voss %A Konrad Lehmann %A Hans-Joachim Bischof %A Siegrid L£¿wel %J PLOS ONE %D 2012 %I Public Library of Science (PLoS) %R 10.1371/journal.pone.0011912 %X The primary visual cortex of mammals is characterised by a retinotopic representation of the visual field. It has therefore been speculated that the visual wulst, the avian homologue of the visual cortex, also contains such a retinotopic map. We examined this for the first time by optical imaging of intrinsic signals in zebra finches, a small songbird with laterally placed eyes. In addition to the visual wulst, we visualised the retinotopic map of the optic tectum which is homologue to the superior colliculus in mammals. %U http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0011912