Purposeless motor activity and agitation.
Example: The patient runs aimlessly through the lunchroom due to an episode of catatonic excitement, knocking over objects without apparent regard, and ignoring all outside attempts to stop or redirect her.
Grinnell, R. (2008). Catatonic Excitement. Psych Central. Retrieved on February 7, 2016, from http://psychcentral.com/encyclopedia/catatonic-excitement/