Offset response of the olfactory projection neurons in the moth antennal lobe

Biosystems. 2011 Mar;103(3):348-54. doi: 10.1016/j.biosystems.2010.11.007. Epub 2010 Nov 13.

Abstract

We investigated a population activity of central olfactory neurons after the termination of odor input. Olfactory response of projection neurons in the moth primary olfactory center was characterized using in vivo intracellular recording and staining techniques. The population activity changed rapidly to the different states after the stimulus offset. The response after stimulus offset represents information regarding odor identity. We analyzed the spatial distribution of offset-activated glomeruli in a virtual neuronal population that was reconstructed using accumulated individual recordings obtained from different specimens. The offset-activated glomeruli tended to be widely distributed, whereas the onset-activated glomeruli were relatively clustered. These results suggest the importance of lateral interaction in shaping the offset olfactory response.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bombyx / cytology*
  • Bombyx / physiology*
  • Brain / cytology
  • Brain / physiology
  • Central Nervous System / cytology
  • Central Nervous System / physiology
  • Electrophysiology
  • Interneurons / cytology
  • Interneurons / physiology
  • Male
  • Olfactory Pathways / cytology
  • Olfactory Pathways / physiology
  • Olfactory Receptor Neurons / cytology
  • Olfactory Receptor Neurons / physiology*