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Relevant bibliographies by topics / Gastric mill rhythm

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Journal articles

Academic literature on the topic 'Gastric mill rhythm'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Gastric mill rhythm"

1

Wood, Debra E., Melissa Varrecchia, Michael Papernov, Denise Cook, and Devon C. Crawford. "Hormonal Modulation of Two Coordinated Rhythmic Motor Patterns." Journal of Neurophysiology 104, no. 2 (2010): 654–64. http://dx.doi.org/10.1152/jn.00846.2009.

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Neuromodulation is well known to provide plasticity in pattern generating circuits, but few details are available concerning modulation of motor pattern coordination. We are using the crustacean stomatogastric nervous system to examine how co-expressed rhythms are modulated to regulate frequency and maintain coordination. The system produces two related motor patterns, the gastric mill rhythm that regulates protraction and retraction of the teeth and the pyloric rhythm that filters food. These rhythms have different frequencies and are controlled by distinct mechanisms, but each circuit influe

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2

Norris, B. J., M. J. Coleman, and M. P. Nusbaum. "Recruitment of a projection neuron determines gastric mill motor pattern selection in the stomatogastric nervous system of the crab, Cancer borealis." Journal of Neurophysiology 72, no. 4 (1994): 1451–63. http://dx.doi.org/10.1152/jn.1994.72.4.1451.

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1. In the isolated stomatogastric nervous system of the crab Cancer borealis (Fig. 1), the muscarinic agonist oxotremorine elicits several distinct gastric mill motor patterns from neurons in the stomatogastric ganglion (STG; Fig. 2). Selection of a particular gastric mill rhythm is determined by activation of distinct projection neurons that influence gastric mill neurons within the STG. In this paper we identify one such neuron, called commissural projection neuron 2 (CPN2), whose rhythmic activity is integral in producing one form of the gastric mill rhythm. 2. There is a CPN2 soma and neur

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3

Weimann, J. M., P. Meyrand, and E. Marder. "Neurons that form multiple pattern generators: identification and multiple activity patterns of gastric/pyloric neurons in the crab stomatogastric system." Journal of Neurophysiology 65, no. 1 (1991): 111–22. http://dx.doi.org/10.1152/jn.1991.65.1.111.

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1. The stomatogastric ganglion (STG) of decapod crustaceans has been characterized by its production of two motor patterns, the gastric mill rhythm and the pyloric rhythm. The period of the gastric rhythm is typically 5-10 s, whereas the period of the pyloric rhythm is approximately 1 s. 2. In the STG of the crab, Cancer borealis, we find routinely that many motor neurons are active in time with both the pyloric and gastric rhythms. We rigorously identified the motor neurons according to the muscles they innervate. Some neurons usually classified as members of the pyloric network can be active

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4

Kirby, Matthew S., and Michael P. Nusbaum. "Peptide Hormone Modulation of a Neuronally Modulated Motor Circuit." Journal of Neurophysiology 98, no. 6 (2007): 3206–20. http://dx.doi.org/10.1152/jn.00795.2006.

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Rhythmically active motor circuits are influenced by neuronally released and circulating hormone modulators, but there are few systems in which the influence of a peptide hormone modulator on a neuronally modulated motor circuit has been determined. We performed such an analysis in the isolated crab stomatogastric nervous system by assessing the influence of the hormone crustacean cardioactive peptide (CCAP) on the gastric mill (chewing) rhythm elicited by identified modulatory projection neurons. The gastric mill circuit is located in the stomatogastric ganglion. In situ, this ganglion is loc

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5

Rehm, Kristina J., Adam L. Taylor, Stefan R. Pulver, and Eve Marder. "Spectral Analyses Reveal the Presence of Adult-Like Activity in the Embryonic Stomatogastric Motor Patterns of the Lobster, Homarus americanus." Journal of Neurophysiology 99, no. 6 (2008): 3104–22. http://dx.doi.org/10.1152/jn.00042.2008.

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The stomatogastric nervous system (STNS) of the embryonic lobster is rhythmically active prior to hatching, before the network is needed for feeding. In the adult lobster, two rhythms are typically observed: the slow gastric mill rhythm and the more rapid pyloric rhythm. In the embryo, rhythmic activity in both embryonic gastric mill and pyloric neurons occurs at a similar frequency, which is slightly slower than the adult pyloric frequency. However, embryonic motor patterns are highly irregular, making traditional burst quantification difficult. Consequently, we used spectral analysis to anal

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6

White, Rachel S., Robert M. Spencer, Michael P. Nusbaum, and Dawn M. Blitz. "State-dependent sensorimotor gating in a rhythmic motor system." Journal of Neurophysiology 118, no. 5 (2017): 2806–18. http://dx.doi.org/10.1152/jn.00420.2017.

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Sensory feedback influences motor circuits and/or their projection neuron inputs to adjust ongoing motor activity, but its efficacy varies. Currently, less is known about regulation of sensory feedback onto projection neurons that control downstream motor circuits than about sensory regulation of the motor circuit neurons themselves. In this study, we tested whether sensory feedback onto projection neurons is sensitive only to activation of a motor system, or also to the modulatory state underlying that activation, using the crab Cancer borealis stomatogastric nervous system. We examined how p

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7

Saideman, Shari R., Mingming Ma, Kimberly K. Kutz-Naber, et al. "Modulation of Rhythmic Motor Activity by Pyrokinin Peptides." Journal of Neurophysiology 97, no. 1 (2007): 579–95. http://dx.doi.org/10.1152/jn.00772.2006.

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Pyrokinin (PK) peptides localize to the central and peripheral nervous systems of arthropods, but their actions in the CNS have yet to be studied in any species. Here, we identify PK peptide family members in the crab Cancer borealis and characterize their actions on the gastric mill (chewing) and pyloric (filtering) motor circuits in the stomatogastric ganglion (STG). We identified PK-like immunolabeling in the STG neuropil, in projection neuron inputs to this ganglion, and in the neuroendocrine pericardial organs. By combining MALDI mass spectrometry (MS) and ESI tandem MS techniques, we ide

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8

Zhu, Lin, Allen I. Selverston, and Joseph Ayers. "Role of Ih in differentiating the dynamics of the gastric and pyloric neurons in the stomatogastric ganglion of the lobster, Homarus americanus." Journal of Neurophysiology 115, no. 5 (2016): 2434–45. http://dx.doi.org/10.1152/jn.00737.2015.

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The hyperpolarization-activated inward cationic current ( Ih) is known to regulate the rhythmicity, excitability, and synaptic transmission in heart cells and many types of neurons across a variety of species, including some pyloric and gastric mill neurons in the stomatogastric ganglion (STG) in Cancer borealis and Panulirus interruptus. However, little is known about the role of Ih in regulating the gastric mill dynamics and its contribution to the dynamical bifurcation of the gastric mill and pyloric networks. We investigated the role of Ih in the rhythmic activity and cellular excitability

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9

Russell, D. F. "Pattern and reset analysis of the gastric mill rhythm in a spiny lobster, Panulirus interruptus." Journal of Experimental Biology 114, no. 1 (1985): 71–98. http://dx.doi.org/10.1242/jeb.114.1.71.

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The burst pattern of the gastric mill rhythm was studied by varying its cycle period in in vitro preparations comprising the stomatogastric (STG), oesophageal and (paired) commissural ganglia. Reset tests using intracellular polarization of identified STG neurones showed that the CI, LC, GP and GM cells can all strongly affect the cycle period, and therefore apparently play a role in generating the gastric rhythm. Variation in the cycle period could be obtained by: (i) cutting certain input nerves; (ii) relative coordination between the gastric and oesophageal rhythms; or (iii) intracellular p

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10

Turrigiano, G. G., A. Van Wormhoudt, L. Ogden, and A. I. Selverston. "Partial purification, tissue distribution and modulatory activity of a crustacean cholecystokinin-like peptide." Journal of Experimental Biology 187, no. 1 (1994): 181–200. http://dx.doi.org/10.1242/jeb.187.1.181.

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Reversed-phase chromatography was used to separate several forms of cholecystokinin-like peptides (CCKLP) from the pericardial organs (PCOs) of the spiny lobster Panulirus interruptus. Fast protein liquid chromatography of PCOs, stomatogastric ganglia (STGs) and eyestalks revealed five peaks of CCKLP (peaks A-E) that were common to all three tissues, as well as two additional peaks (peaks F and G) in the STG. Peaks A-E were present in the hemolymph of fed, but not starved, lobsters. The bioactivity of peaks A-E was tested on the gastric mill rhythm of the isolated STG. Only peak E elicited act

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