15:30 - 17:00
Poster Session - Vertebrate Taste and Olfaction: Periphery
Room: 01 - Quadrat
Rhythmically discharging olfactory receptor neurons can encode the spatiotemporal characteristics of odor signals within complex fluid environments
Yuriy V Bobkov 1, Il Memming Park 2, Brenden T Michaelis 3, Matthew A Reidenbach 3, Barry W Ache 1, 4, Jose C Principe 5
1 Whitney Laboratory for Marine Bioscience, Center for Smell and Taste, University of Florida, Gainesville, 2 Department of Neurobiology and Behavior, SUNY Stony Brook, Stony Brook, NY, 3 Department of Environmental Sciences, University of Virginia, Charlottesville, 4 Department of Biology and Neuroscience, University of Florida, Gainesville, 5 Department of Electrical and Computer Engineering, University of Florida, Gainesville

Sensory signals, including olfactory signals, are typically encoded by tonic receptor neurons. A significant portion of the olfactory receptor neurons in some species is intrinsically rhythmically active or ‘bursting’ (bORNS). Rather than phaso-tonically discharging to the odor onset as characteristic of tonic olfactory receptor neurons, in bORNs the frequency of their inherent burst is entrained by the intermittency inherent in turbulent odor plumes. Each bORN responds to a relatively narrow range of stimulus frequencies (intermittency) based on their inherent rate of bursting discharge and the phase dependency of their response to odor stimulation. Using computational and analytical approaches we have shown that heterogeneous populations of such uncoupled oscillatory neurons have the capacity to reliably encode the temporal properties of intermittent odor signals as long as seconds to many tens of seconds that characterize natural odor plumes. In the present study, we expand our current understanding bORN-based encoding by characterizing the molecular receptive range of bORNs, mapping their central projection, and beginning to identify the strategy for the synaptic processing of bORN-derived information at the first olfactory relay.


Reference:
Th-P-054
Session:
Poster session: Theme II - Vertebrate taste and olfaction: periphery
Presenter/s:
Yuriy V Bobkov
Presentation type:
Poster
Room:
01 - Quadrat
Date:
Thursday, 6 September 2018
Time:
15:30 - 17:00
Session times:
15:30 - 17:00