The Zoological Research Museum Alexander Koenig

is a research museum of the Leibniz Association

The Natural History of Sound Localization in Mammals

Date: 
Mon, 11/18/2019 - 5:15pm
Meeting point: 
Poppelsdorfer Schloss
Location: 
Lecture hall
Event type: 
Lecture
Event series: 
Colloquium on evolution and biodiversity
Target group: 
Studierende
Lecturer: 
Prof. Dr. Benedikt Grothe, Ludwig-Maximilians-Universität München

Our concepts of sound localization in the vertebrate brain are widely based on the general assumption that both, the ability to detect and localize air-borne sounds and the underlying neuronal processes, are homologous in archosaurs (and birds) and mammals.

Yet, studies repeatedly report conflicting results on the neuronal circuits and mechanisms as well as the coding strategies between avian and mammalian model systems. I will argue that mammalian and avian phylogeny of spatial hearing is characterized by a convergent evolution of hearing air-borne sounds rather than by homology.

In particular, the different evolutionary origins of tympanic ears and the different availability of binaural cues in early mammals and archosaurs imposed distinct constraints on the respective binaural processing mechanisms and triggered distinct adaptations in the central auditory pathways.

Contact person

Head of Section
+49 228 9122-241
+49 228 9122-295
h.waegele [at] leibniz-zfmk.de

Colloquium on biology

Prof. Dr. H. Wägele
Zoological Research Museum Alexander Koenig,
Adenauerallee 160, 53113 Bonn, Germany
 
Prof. Dr. G. von der Emde
Institute of Zoology, Poppelsdorfer Schloss,
Meckenheimer Allee 169, 53115 Bonn, Germany

Place: Great lecture hall, Poppelsdorfer Schloß
Time: mondays, 17.15 h

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