Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Cancer borealis"”.
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Translation and transcription are required for endogenous bursting after long term removal of neuromodulators
… the network activity. The pyloric network of the Cancer borealis stomatogastric ganglion (STG), a rhythmic motor pattern-generating network, requires modulatory inputs to generate this activity. When neuromodulatory inputs are removed, the pyloric network falls silent. However, patterned pyloric …
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Motor neuron output in the crustacean cardiac ganglion is organized and maintained by homeostatic conductance relationships
… Here we utilize large cell motor neurons of the Cancer borealis cardiac ganglion to investigate how these cell's important burst output is generated, maintained and synchronized across cells in a rhythmic motor network. We find that large cell motor neurons utilize multiple intrinsic currents to …
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The control of frequency of a conditional oscillator simultaneously subjected to multiple oscillatory inputs
… of the stomatogastric ganglion of the crab Cancer borealis which requires modulatory input from outside the stomatogastric ganglion and fast input from the pyloric network of the animal in order to become active. This dissertation studies how the frequency of the gastric mill network is …
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Mechanisms of ionic current changes underlying rhythmic activity recovery after decentralization
… used the pyloric network of the crab Cancer borealis to identify potential mechanisms that ensure stability and adaptation of rhythm generation by neuronal networks under changing environmental conditions, in particular after the removal of neuromodulatory input to this network …
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Biogeographic Patterns, Predator Identity, and Chemical Signals Influence the Occurrence and Magnitude of Non-lethal Predator Effects
… a suite of its predators, the native rock crab Cancer irroratus (Say, 1817), Jonah crab Cancer borealis (Stimpson, 1859), and the invasive green crab Carcinus maenas (Linnaeus, 1758). Nucella use chemical cues emanating from their most common predator (Carcinus maenas) and crushed conspecifics …
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Modeling projection neuron and neuromodulatory effects on a rhythmic neuronal network
… mill (chewing) motor network of the crab, Cancer borealis. The projection neuron MCN1 elicits a gastric mill rhythm in which the LG neuron and INTl burst in anti-phase due to their reciprocal inhibition. However, bath application of the neuromodulator PK elicits a similar gastric mill …
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Biophysical mechanisms of frequency-dependence and its neuromodulation in neurons in oscillatory networks
… central pattern generator network of the crab Cancer borealis, for example, the pacemaker group pyloric dilator neurons show MPR at a frequency that is correlated with the network frequency. This dissertation uses the crab pyloric CPG to examine how, in one neuron type, interactions of ionic …
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Determining how stable network oscillations arise from neuronal and synaptic mechanisms
… model system, the pyloric network of the crab Cancer borealis. The pyloric network has endogenously oscillating 'pacemaker' neurons that inhibit 'follower' neurons, which in turn feed back onto the pacemaker neurons. The focus of this thesis was to determine the methods by which phase …