Charakterisierung intrinsischer Eigenschaften eines Propriozeptors und deren Beitrag zur sensorischen Informationsverarbeitung
FacultiesFakultät für Naturwissenschaften
LicenseStandard (Fassung vom 01.10.2008)
Interaction with the environment is an important part of animal behavior. Sensory feedback provides necessary information for the body to generate an adequate behavior. The cellular properties and their importance for sensory feedback, however, are often unclear. The stomatogastric nervous system of the crab, Cancer pagurus, is a model system to investigate the basics of neuronal information processing on the cellular level. Two central pattern generators (CPGs) are located in the stomatogastric ganglion and generate two motor patterns: the pyloric rhythm is responsible for food filtering, while the gastric mill rhythm (GMR) drives the movement of internal teeth during chewing. The underlying CPGs have been characterized on both, cellular and network levels. They are under modulatory control of higher centers and receive information from multiple sense organs. The latter, often single neurons, can be studied with intracellular recordings. In this work I investigated the functional impact of cellular properties of a proprioceptor (the anterior gastric receptor) on the motor output. My thesis shows that cellular properties of sense organs have a strong influence on sensory actions and that they can even add additional functions to the sense organ, for example that of an interneuron.
Subject HeadingsPropriozeptor [GND]