Muscle Response to Changing Neuronal Input in the Lobster (Panulirus interruptus) Stomatogastric System: Spike Number- versus Spike Frequency-Dependent Domains

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Muscle response to changing neuronal input in the lobster (Panulirus interruptus) stomatogastric system: spike number- versus spike frequency-dependent domains.

We aimed to determine the neuronal parameters controlling the contraction of slowly contracting, non-twitch ("tonic") muscles driven by rhythmic neuronal activity. These muscles are almost completely absent in mammals but are common in lower vertebrates and invertebrates. Slow muscles are often believed to function primarily in tonic motor patterns. However, previous research and data presented...

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Muscle response to changing neuronal input in the lobster (Panulirus interruptus) stomatogastric system: slow muscle properties can transform rhythmic input into tonic output.

Slow, non-twitch muscles are widespread in lower vertebrates and invertebrates and are often assumed to be primarily involved in posture or slow motor patterns. However, in several preparations, including some well known invertebrate "model" preparations, slow muscles are driven by rapid, rhythmic inputs. The response of slow muscles to such inputs is little understood. We are investigating thi...

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Sensory alteration of motor patterns in the stomatogastric nervous system of the spiny lobster Panulirus interruptus.

1. Stretching the pyloric region of the lobster's stomach in a manner that resembles pyloric dilation triggers a prolonged burst of impulses in two interneurones with axons in the inferior ventricular nerve (IVN). The burst is activated in the oesophageal ganglion by sensory axons that traverse the lateral ventricular nerves, the dorsal ventricular nerve and the stomatogastric nerve. These sens...

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Pyloric neuron morphology in the stomatogastric ganglion of the lobster, Panulirus interruptus.

The pyloric network of decapod crustaceans has been intensively studied electrophysiologically in the infraorders Astacidea, Brachyura, and Palinura. The morphology of some or all pyloric neurons has been well described in Astacidea and Brachyura, but less so in Palinura. Given the large evolutionary distance between these three groups, and the large amount of electrophysiology that has been pe...

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Input Sources and Properties of Position- Sensitive Oculomotor Fibres in the Rock Lobster, Panulirus Interruptus (randall)

The positions of the eyecups of stalk-eyed decapod Crustacea are mainly determined by several sets of muscles which influence the angle at which the eyes are kept with regard to the proximal joint of the eyestalk. As the animal's position changes this angle also changes in such a way as to keep the eyes in a horizontal plane, and as near as possible to their former position. In the crayfish the...

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ژورنال

عنوان ژورنال: The Journal of Neuroscience

سال: 1997

ISSN: 0270-6474,1529-2401

DOI: 10.1523/jneurosci.17-15-05956.1997