locust chordotonal organ coding for proprioceptive and acoustic stimuli

A chordotonal organ in the prothoracic segment of a locust combines features of a proprioceptive mechanoreceptor and an acoustic organ. This organ is closely associated with the tracheal system in the neck. The central nervous projections of the sensory cells contact neuropiles in all thoracic gangl...

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Bibliographic Details
Published in:Journal of Comparative Physiology 1999-02, Vol.184 (2), p.169-183
Main Authors: Pfluger, H.J, Field, L.H
Format: Article
Language:English
Subjects:
Acoustics
anatomy and morphology
animal anatomy
Chordotonal organ
electrophysiology
Fibers
frequency
Ganglia
hearing
Locusta migratoria
mechanical stimulation
mechanoreceptors
Neck
Neural coding
neuroanatomy
neuropiles
Proprioception
sense organs
sounds
stimuli
Tympanic membrane
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Summary:A chordotonal organ in the prothoracic segment of a locust combines features of a proprioceptive mechanoreceptor and an acoustic organ. This organ is closely associated with the tracheal system in the neck. The central nervous projections of the sensory cells contact neuropiles in all thoracic ganglia with the most dense arborizations in the metathoracic ganglion in close proximity, and even with some overlap, to the projections of tympanic fibres. Physiological experiments show that this organ responds to mechanical displacement of its receptor apodeme and, in addition, to acoustic stimulation via either a region of the cervical membrane which may act as a functional tympanic membrane, or via the tracheal system.
ISSN:0340-7594
1432-1351
DOI:10.1007/s003590050316