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Multielectrode recordings of cockroach antennal lobe neurons in response to temporal dynamics of odor concentrations.
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- Author(s): Tichy H;Tichy H; Martzok A; Martzok A; Linhart M; Linhart M; Zopf LM; Zopf LM; Hellwig M; Hellwig M
- Source:
Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology [J Comp Physiol A Neuroethol Sens Neural Behav Physiol] 2023 May; Vol. 209 (3), pp. 411-436. Date of Electronic Publication: 2023 Jan 16.
- Publication Type:
Journal Article; Research Support, Non-U.S. Gov't
- Language:
English
- Additional Information
- Source:
Publisher: Springer Country of Publication: Germany NLM ID: 101141792 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1432-1351 (Electronic) Linking ISSN: 03407594 NLM ISO Abbreviation: J Comp Physiol A Neuroethol Sens Neural Behav Physiol Subsets: MEDLINE
- Publication Information:
Original Publication: Berlin ; New York : Springer, c2001-
- Subject Terms:
- Abstract:
The initial representation of the instantaneous temporal information about food odor concentration in the primary olfactory center, the antennal lobe, was examined by simultaneously recording the activity of antagonistic ON and OFF neurons with 4-channel tetrodes. During presentation of pulse-like concentration changes, ON neurons encode the rapid concentration increase at pulse onset and the pulse duration, and OFF neurons the rapid concentration decrease at pulse offset and the duration of the pulse interval. A group of ON neurons establish a concentration-invariant representation of odor pulses. The responses of ON and OFF neurons to oscillating changes in odor concentration are determined by the rate of change in dependence on the duration of the oscillation period. By adjusting sensitivity for fluctuating concentrations, these neurons improve the representation of the rate of the changing concentration. In other ON and OFF neurons, the response to changing concentrations is invariant to large variations in the rate of change due to variations in the oscillation period, facilitating odor identification in the antennal-lobe. The independent processing of odor identity and the temporal dynamics of odor concentration may speed up processing time and improve behavioral performance associated with plume tracking, especially when the air is not moving.
(© 2023. The Author(s).)
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- Grant Information:
P 30594 Austria FWF_ Austrian Science Fund FWF
- Contributed Indexing:
Keywords: Antennal lobe; Cockroach; Electrophysiology; Olfaction; Tetrode
- Publication Date:
Date Created: 20230116 Date Completed: 20231107 Latest Revision: 20231107
- Publication Date:
20231215
- Accession Number:
PMC10102049
- Accession Number:
10.1007/s00359-022-01605-7
- Accession Number:
36645471
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