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. 1992 Sep;171(2):213-30.
doi: 10.1007/BF00188929.

Interneurons of the subesophageal ganglion of Sarcophaga bullata responding to gustatory and mechanosensory stimuli

B K Mitchell  1 , H Itagaki
Affiliations

Interneurons of the subesophageal ganglion of Sarcophaga bullata responding to gustatory and mechanosensory stimuli

B K Mitchell et al. J Comp Physiol A. 1992 Sep.

Abstract

Intracellular recordings were made from interneurons in the subesophageal ganglion (SEG) of Sarcophaga bullata while stimulating the labellar lobes with solutions of sucrose, NaCl and with distilled water. Neurons that responded to sucrose did not respond to NaCl and vice versa, while sucrose-sensitive neurons often responded weakly to water. Several of the recorded neurons were filled with Lucifer Yellow, and their morphology was reconstructed. Most showed extensive arborizations within the SEG, suggesting that they were local interneurons involved in the early stages of gustatory processing. Some of the filled neurons had extensive projections to the brain, in addition to arborizations in the SEG. This is the first published record of gustatory interneurons in the higher flies.

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