Feeding state-dependent modulation of feeding-related motor patterns
Aaron P. Cook, Michael P. Nusbaum
Abstract
Little is known about behavior-linked modulation of microcircuit activity. We show that the VCN-triggered gastric mill (chewing) and pyloric (food filtering) rhythms in the isolated crab Cancer borealis stomatogastric nervous system were changed by applying hemolymph from recently fed but not unfed crabs. This included some distinct parameter changes during each examined post-fed hemolymph time-point. These results suggest the presence of feeding-related changes in circulating hormones that regulate consummatory microcircuit activity.
Topics & Concepts
HemolymphStomatogastric ganglionBiologyNeuronNeuroscienceAnatomyRhythmInternal medicineCentral pattern generatorEcologyMedicineNeurobiology and Insect Physiology ResearchPhysiological and biochemical adaptationsCrustacean biology and ecology