Learned helplessness in the gerbil?

27 male Mongolian gerbils were assigned to escapable, inescapable, and control groups and subjected to 2 consecutive days of jump-up escape followed 24 hrs later by testing in a barpress escape task. Reliable differences occurred between escapable and inescapable Ss and between inescapable and control Ss. Findings provide evidence of learned helplessness in Mongolian gerbils. (14 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)