Thorax-Segment- and Leg-Segment-Specific Motor Control for Adaptive Behavior.

ABSTRACT: We have just started to understand the mechanisms underlying flexibility of motor programs among segmental neural networks that control each individual leg during walking in vertebrates and invertebrates. Here, we investigated the mechanisms underlying curve walking in the stick insect Carausius morosus during optomotor-induced turning. We wanted to know, whether the previously reported body-side specific changes in a two-front leg turning animal are also observed in the other thoracic leg segments. The motor activity of the three major leg joints showed three types of responses: 1) a context-dependent increase or decrease in motor neuron (MN) activity of the antagonistic MN pools of the thorax-coxa (ThC)-joint during inside and outside turns; 2) an activation of 1 MN pool with simu

SUBMITTER: Hammel E 

PROVIDER: S-EPMC9114818 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature