016_2009.pdf (2.06 MB)
Differential odor processing in two olfactory pathways in the honeybee
journal contribution
posted on 2023-06-08, 18:23 authored by Nobuhiro Yamagata, Michael SchmukerMichael Schmuker, Paul Szyszka, Makoto Mizunami, Randolf MenzelAn important component in understanding central olfactory processing and coding in the insect brain relates to the characterization of the functional divisions between morphologically distinct types of projection neurons (PN). Using calcium imaging, we investigated how the identity, concentration and mixtures of odors are represented in axon terminals (boutons) of two types of PNs - lPN and mPN. In lPN boutons we found less concentration dependence, narrow tuning profiles at a high concentration, which may be optimized for fine, concentration-invariant odor discrimination. In mPN boutons, however, we found clear rising concentration dependence, broader tuning profiles at a high concentration, which may be optimized for concentration coding. In addition, we found more mixture suppression in lPNs than in mPNs, indicating lPNs better adaptation for synthetic mixture processing. These results suggest a functional division of odor processing in both PN types.
History
Publication status
- Published
File Version
- Published version
Journal
Frontiers in Systems NeuroscienceISSN
1662-5137Publisher
FrontiersExternal DOI
Volume
3Page range
16Department affiliated with
- Informatics Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2014-09-23First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2017-03-09Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC