The UCLA Joint Seminars in Neuroscience Presents - Prof. Dr. Michael Brecht

Tuesday, January 12, 2021 - 12:00pm

The UCLA Joint Seminars in Neuroscience Presents - Prof. Dr. Michael Brecht

"Blood Is Thicker Than Water"

Prof. Dr. Michael Brecht
System Neurobiology and Neural Computation
Institute of Biology, Bernstein Center for Computational Neuroscience
Humboldt University Berlin
Berlin, Germany

Abstract: According to Hamilton’s inclusive fitness hypothesis, kinship is an organizing principle of social behavior. Despite the fundamental importance of kinship behavior, the underlying neural mechanisms are poorly understood. Consistent with earlier work by Hepper, we find a developmental time course for kinship behavior, where rats prefer sibling interactions at young ages and express non-sibling preferences at older ages. We find that aspiration lesions of the lateral septum but not control lesions eliminate these behavioral preferences. In recordings non-kin-odor responsive neurons were found dorsally, while kin-odor responsive neurons were located in ventrally in the lateral septum. We refer to this organization as nepotopy. Thus, our results are consistent with a role of the lateral septum in organizing mammalian kinship behavior. If time permits I will also discuss the role of the lateral septum in human and animal cannibalism.

Host: Stephanie White

Zoom Seminar Registration: https://uclahs.zoom.us/meeting/register/tJMofuqtrzMiG9Q26wDQrpoeNgZ_ymj7...

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