Neuronal Response Latencies Encode First Odor Identity Information across Subjects.

Autor: Paoli, Marco, Albi, Angela, Zanon, Mirko, Zanini, Damiano, Antolini, Renzo, Haase, Albrecht
Předmět:
Zdroj: Journal of Neuroscience; 10/24/2018, Vol. 38 Issue 43, p9240-9251, 12p
Abstrakt: Odorants are coded in the primary olfactory processing centers by spatially and temporally distributed patterns of glomerular activity. Whereas the spatial distribution of odorant-induced responses is known to be conserved across individuals, the universality of its temporal structure is still debated. Via fast two-photon calcium imaging, we analyzed the early phase of neuronal responses in the form of the activity onset latencies in the antennal lobe projection neurons of honeybee foragers. We show that each odorant evokes a stimulus-specific response latency pattern across the glomerular coding space. Moreover, we investigate these early response features for the first time across animals, revealing that the order of glomerular firing onsets is conserved across individuals and allows them to reliably predict odorant identity, but not concentration. These results suggest that the neuronal response latencies provide the first available code for fast odor identification. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index