Effects of central nervous system lesions on leg lift learning in the cockroach, P. americana

When headless and intact cockroaches were trained to keep their prothoracic legs flexed to avoid electric shock, headless animals reached an asymptote more quickly than intact animals. Three behavioral measures were examined for experimental and yoked control animals to analyze differences between headless and intact animals. When cycloheximide (CXM) was injected before leg lift training, cycloheximide-injected headless animals reached an asymptote more slowly than control headless animals. However, cycloheximide did not impair leg lift learning in intact animals.