Variability of Motor Neuron Spike Timing Maintains and Shapes Contractions of the Accessory Radula Closer Muscle of Aplysia
نویسندگان
چکیده
منابع مشابه
Variability of motor neuron spike timing maintains and shapes contractions of the accessory radula closer muscle of Aplysia.
The accessory radula closer (ARC) muscle of Aplysia has long been studied as a typical "slow" muscle, one that would be assumed to respond only to the overall, integrated spike rate of its motor neurons, B15 and B16. The precise timing of the individual spikes should not much matter. However, but real B15 and B16 spike patterns recorded in vivo show great variability that extends down to the ti...
متن کاملEnhancement of Ca current in the accessory radula closer muscle of Aplysia californica by neuromodulators that potentiate its contractions.
A major goal of neuroscience is to identify the neural and cellular mechanisms of behavior and its plasticity. Progress toward this goal has come particularly from work with a small number of tractable model preparations. One of these is the simple neuromuscular circuit consisting of the accessory radula closer (ARC) muscle of the mollusk Aplysia californica and its innervating motor and modula...
متن کاملActivation of K current in the accessory radula closer muscle of Aplysia californica by neuromodulators that depress its contractions.
The neural and cellular mechanisms of plasticity apparent in the feeding behavior of the mollusk Aplysia californica have been extensively studied in a simple neuromuscular circuit consisting of the accessory radula closer (ARC) muscle and its innervating motor and modulatory neurons. In this circuit, the plasticity is largely due to modulation of the amplitude and duration of the contractions ...
متن کاملCostorage and corelease of modulatory peptide cotransmitters with partially antagonistic actions on the accessory radula closer muscle of Aplysia californica.
Many neurons that contain a classical neurotransmitter also contain modulatory peptides, but it has been difficult to establish unequivocally that these peptides are functional cotransmitters. Here, we provide evidence for functional cotransmission in a neuromuscular system of Aplysia. Using immunocytochemical techniques, we localize members of two peptide families, the small cardioactive pepti...
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ژورنال
عنوان ژورنال: Journal of Neuroscience
سال: 2006
ISSN: 0270-6474,1529-2401
DOI: 10.1523/jneurosci.5277-05.2006