Munich Neuroscience Calendar


05.10.2023, 11:00 Max Planck Institute for Biological Intelligence Campus Martinsried
until 12:00
Event Type: Talk
Speaker: Sam Reiter
Institute: Okinawa Institute of Science and Technology Graduate University (OIST)

Title: Wake-like skin patterning and neural activity during octopus sleep

MPI BI, Seminar room NQ105
Am Klopferspitz 18
82152 Martinsried

Host: Lisa Fenk

While sleeping, many vertebrate groups alternate between at least two sleep stages: rapid eye movement (REM) and slow wave sleep (SWS), in part characterized by wake-like and synchronous brain activity respectively. We will describe neural and behavioral correlates of two stages of sleep in octopuses, marine invertebrates which evolutionarily diverged from vertebrates ~550 MYA and have independently evolved large brains and behavioral sophistication. Octopus "active" sleep bouts interrupt normal "quiet" sleep, and see the animal rapidly transition through a set of brain-controlled skin patterns. Active sleep skin pattern dynamics take the form of pseudo-random transitions over waking skin patterns. In the brain, high-density electrophysiological recordings reveal that the local field potential (LFP) activity during active sleep resembles that of waking. The range of similarities with vertebrates implies that aspects of 2-stage sleep in octopuses may represent convergent features of biological intelligence.

Hybrid seminar
Zoom:, Meeting-ID: 844 7224 0120, Kenncode: 185545

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