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Self-organization in the olfactory system: one shot odor recognition in insects

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posted on 2023-06-07, 14:18 authored by Thomas NowotnyThomas Nowotny, Ramon Huerta, Henry D I Abarbanel, Mikhail I Rabinovich
We show in a model of spiking neurons that synaptic plasticity in the mushroom bodies in combination with the general fan-in, fan-out properties of the early processing layers of the olfactory system might be sufficient to account for its efficient recognition of odors. For a large variety of initial conditions the model system consistently finds a working solution without any fine-tuning, and is, therefore, inherently robust. We demonstrate that gain control through the known feedforward inhibition of lateral horn interneurons increases the capacity of the system but is not essential for its general function. We also predict an upper limit for the number of odor classes Drosophila can discriminate based on the number and connectivity of its olfactory neurons.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

Biological Cybernetics

ISSN

1432-0770

Publisher

Springer Verlag

Issue

6

Volume

93

Page range

436-446

Department affiliated with

  • Informatics Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2008-03-07

First Open Access (FOA) Date

2014-03-05

First Compliant Deposit (FCD) Date

2014-03-05

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