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 13 of 13 for “"Pleurobranchaea"”.
-
Interacting Premotor Networks Mediating Behavioral Selection in the Predatory Marine Snail Pleurobranchaea Californica
These results suggest that premotor neurons may have distinct multifunctional or dedicated roles in behavioral selection. Multifunctional neurons like As1-4 may excite multiple networks, whereas one role for dedicated network neurons is to exclude incompatible behavior by inhibiting other …
-
Interacting Premotor Networks Mediating Behavioral Selection in the Predatory Marine Snail Pleurobranchaea Californica
These results suggest that premotor neurons may have distinct multifunctional or dedicated roles in behavioral selection. Multifunctional neurons like As1-4 may excite multiple networks, whereas one role for dedicated network neurons is to exclude incompatible behavior by inhibiting other …
-
Prey avoidance learning and neuronal elements mediating behavioral switching in the predatory sea-slug Pleurobranchaea californica
… in investigating how the predatory sea-slug Pleurobranchaea californica makes behavioral choices. Pleurobranchaea is a predatory generalist that surveys its environment for potential prey in a trial-and-error fashion. When encountering the Nudibranch Flabellina iodinea and its noxious defense …
-
Electrophysiology, agent-based modeling and inverse optimal control applications in neuroethology
… and time minimization. The predatory sea-slug Pleurobranchaea californica has a simple, accessible nervous system and exhibits a repertory of simple behavioral elements that constitute effective foraging strategies. In this thesis, we introduce initial findings of sensory neurons identified …
-
Neural Mechanisms of Decision-Making: Modulation of the Feeding Neural Network by Nitric Oxide and Serotonin in the Predatory Marine Snail Pleurobranchaea Californica
… activity within the feeding neural network in Pleurobranchaea californica, a predatory sea slug that makes stereotypic feeding and avoidance decisions based on its hunger state within the structure of a relatively simple nervous system. NO selectively depolarizes key feeding elements in the CNS …
-
A Comparison of Light-Activated Enzymes From Vertebrate and Invertebrate Photoreceptors
… of phosphodiesterase in neurons of the mollusc Pleurobranchaea.
-
Characterization of Novel Serotonin Metabolites in Selected Model Neuronal Systems
… 5-HT pathways were identified in Aplysia and Pleurobranchaea californica and Rattus norvegicus, via a capillary electrophoresis system with wavelength-resolved fluorescence detection. This method allows sensitive indole detection from samples as small as single cells. Compounds that natively …
-
Characterization of an Inhibitory Pathway to Feeding Command Neurons in the Brain of Pleurobranchaea Californica and an Analysis of the Changes in This Pathway That Occur as a Result of Food-Avoidance Conditioning
… pathway in the brain of the marine mollusc, Pleurobranchaea californica which influences the activity of the feeding command neurons, the paracerebral neurons (PCNs) is described and the pathway's role in feeding is analyzed. A study of the location of the oscillators which initiate and …
-
The cyclic AMP-activated sodium current in the molluscan neuron: A kinetic analysis of regulation by diffusion, phosphodiesterase and calcium ion
… AMP on pedal neurons of the marine mollusc, Pleurobranchaea californica were studied by intracellular iontophoresis of cyclic AMP under voltage clamp condition. The I$\sb{\rm Na,cAMP}$ response to cyclic AMP injection is resistant to protein kinase inhibitors, and is very likely mediated by …
-
Reciprocal interactions between feeding and turning motor networks mediate foraging decisions in a predatory sea-slug
… learning. As a generalist predator, the sea-slug Pleurobranchaea californica confronts a variety of approach-avoidance foraging decisions. Its simple nervous system and behaviors have enabled the neural correlates of these foraging decisions, including those related to sensation, feeding, and …
-
Initiation, Maintenance, and Termination of Bursting in an Endogenously Bursting Molluscan Nerve Cell (cyclic-Amp)
… ventral white cells (VWC) of the marine mollusc Pleurobranchaea californica become endogenous bursters when the intracellular levels of cyclic 3'5' adenosine monophosphate (cAMP) are raised. cAMP increases the opening frequency of membrane sodium iontophores eliciting an inward current which …
-
A neuronal switch for approach/avoidance in cost-benefit decision
… are accessible in the predatory sea- slug Pleurobranchaea, which has a very simple nervous system. Orienting and avoidance responses are dependent on the appetitive state, such that very hungry animals may attack noxious stimuli and satiated animals will avoid appetitive stimuli. A …
-
Mass spectrometric analysis of signaling peptides in single neurons and their classification
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01