๐”– Bobbio Scriptorium
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Glial responses during evoked behaviors in the leech

โœ Scribed by Joachim W. Deitmer; William B. Kristan Jr.

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
47 KB
Volume
26
Category
Article
ISSN
0894-1491

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โœฆ Synopsis

Their role in contributing to, or controlling, neural circuits underlying behaviors, however, is completely unknown. We have used semi-intact preparations of the leech Hirudo medicinalis, where behaviors can be elicited and monitored (Kristan et al., J Neurobiol 27:380-389, 1995), to record membrane responses of identified glial cells during whole-body shortening and during fictive swimming. Giant glial cells are located in the neuropil of segmental ganglia, where neuronal axons and dendrites establish numerous synaptic contacts (Coggeshall and Fawcett, J Neurophysiol 27:229-289, 1964). We report here that these glial cells hyperpolarize when the whole-body-shortening response is evoked but not during fictive swimming. To our knowledge, this is the first report that associates a specific behavior with glial cell responses.

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