the event occurring of a fixed-action pattern during the absence of the usual exterior stimulant which elicits the pattern. This is thought to be elicited by a build-up of action-specific or motivational energy which overrides the inborn or natural dispersing tool.

VACUUM ACTIVITY: "Vacuum activity as originally posited by Konrad Z. Lorenz, an Austrian ethologist."
Cite this page: N., Pam M.S., "VACUUM ACTIVITY," in, April 29, 2013, (accessed October 24, 2020).