Neurobiology of sound localization
The network underlying sound localization is similar in all vertebrates, although the exact mechanisms underlying the use, the neural extraction and the neural representation may be different in different vertebrate classes. This is not surprising, because, for example birds and mammals have independently developed for several hundreds of millions of years. We study the representation of sound-localization cues at several levels, from the first station of binaural detection in nucleus laminaris to the midbrain-nucleus colliculus inferior, where a first remodeling of the representation occurs and the forebrain, where a further remodeling occurs. We mainly use extracellular recording techniques and combine these with theoretical results. The groups of Thomas Kuenzel and Marcus Wirth complement our approach by working with chicken, an auditory generalist, on the molecular and cellular levels.
Review articles (Übersichtsartikel)
Singheiser M, Gutfreund Y, Wagner H (2012) The representation of sound localization cues in the barn owl’s inferior colliculus. Frontiers in Neural Circuits. doi: 10.3389/fncir.2012.00045.
Wagner H (2004) A comparison of neural computations underlying stereo vision and sound localization. J. Physiol. (Paris) 98: 135-145.