Date: July 23, 2020. 12:00
Location: Online (webinar)
To attend this webinar (open session) please register here.
Title: The complexity of the ordinary – neural control of locomotion
Affiliation: University of Cologne
Today, considerable information is available on the organization and operation of the neural networks that generate the motor output for animal locomotion, such as swimming, walking, or flying. In recent years, the question of which neural mechanisms are responsible for task-specific and flexible adaptations of locomotor patterns has gained increased attention in the field of motor control. I will report on advances we made with respect to this topic for walking in insects, i.e. the leg muscle control system of phasmids and fruit flies. I will present insights into the neural basis of speed control, heading, walking direction, and the role of ground contact in insect walking, both for local control and intersegmental coordination. For these changes in motor activity modifications in the processing of sensory feedback signals play a pivotal role, for instance for movement and load signals in heading and curve walking or for movement signals that contribute to intersegmental coordination. Our recent findings prompt future investigations that aim to elucidate the mechanisms by which descending and intersegmental signals interact with local networks in the generation of motor flexibility during walking in animals.
Bio: Ansgar Büschges is Head of Dept. of Animal Physiology at the University of Cologne (UoC; GER). He studied biology at U Bielefeld (GER) and did his PhD thesis at U Kaiserslautern (GER). After postdocs at U of Alberta (CDN), U Kaiserslautern and the Karolinska Inst. for Neurophysiol. (SWE) he moved to UoC as full professor. He investigates neural and muscular mechanisms of locomotor behavior. Currently his lab focuses on the neural basis of motor flexibility in walking fruit flies and stick insects.