Differential odor processing in two olfactory pathways in the honeybee
An 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 an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2009-12-01
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| Series: | Frontiers in Systems Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/neuro.06.016.2009/full |
| _version_ | 1819090157215678464 |
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| author | Nobuhiro Yamagata Nobuhiro Yamagata Michael Schmuker Paul Szyszka Makoto Mizunami Randolf Menzel |
| author_facet | Nobuhiro Yamagata Nobuhiro Yamagata Michael Schmuker Paul Szyszka Makoto Mizunami Randolf Menzel |
| author_sort | Nobuhiro Yamagata |
| collection | DOAJ |
| description | An 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. |
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| format | Article |
| id | doaj.art-3e414a1ab7b242c1ac92a78ee0f62354 |
| institution | Directory Open Access Journal |
| issn | 1662-5137 |
| language | English |
| last_indexed | 2024-12-21T22:19:22Z |
| publishDate | 2009-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Systems Neuroscience |
| spelling | doaj.art-3e414a1ab7b242c1ac92a78ee0f623542022-12-21T18:48:23ZengFrontiers Media S.A.Frontiers in Systems Neuroscience1662-51372009-12-01310.3389/neuro.06.016.2009883Differential odor processing in two olfactory pathways in the honeybeeNobuhiro Yamagata0Nobuhiro Yamagata1Michael Schmuker2Paul Szyszka3Makoto Mizunami4Randolf Menzel5Graduate School of Life Sciences, Tohoku UniversityInstitut für Neurobiologie, Freie Universität BerlinInstitut für Neurobiologie, Freie Universität BerlinNeurobiologie, Universität KonstanzGraduate School of Life Sciences, Tohoku UniversityInstitut für Neurobiologie, Freie Universität BerlinAn 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.http://journal.frontiersin.org/Journal/10.3389/neuro.06.016.2009/fullinsectOlfactioncalcium imagingfunctional divisionmushroom bodyparallel processing |
| spellingShingle | Nobuhiro Yamagata Nobuhiro Yamagata Michael Schmuker Paul Szyszka Makoto Mizunami Randolf Menzel Differential odor processing in two olfactory pathways in the honeybee Frontiers in Systems Neuroscience insect Olfaction calcium imaging functional division mushroom body parallel processing |
| title | Differential odor processing in two olfactory pathways in the honeybee |
| title_full | Differential odor processing in two olfactory pathways in the honeybee |
| title_fullStr | Differential odor processing in two olfactory pathways in the honeybee |
| title_full_unstemmed | Differential odor processing in two olfactory pathways in the honeybee |
| title_short | Differential odor processing in two olfactory pathways in the honeybee |
| title_sort | differential odor processing in two olfactory pathways in the honeybee |
| topic | insect Olfaction calcium imaging functional division mushroom body parallel processing |
| url | http://journal.frontiersin.org/Journal/10.3389/neuro.06.016.2009/full |
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