Fig. 1: Avoidance conditioning lasting 8d vs. 20d.
From: Prolonged avoidance training exacerbates OCD-like behaviors in a rodent model
a Rats pressing for sucrose pellets were trained to avoid a tone signaled foot-shock by stepping onto a nearby platform. b One group (8d) was conditioned over 8 days. As avoidance increased, freezing to the tone gradually decreased and bar pressing during the pre-tone interval gradually returned to preconditioning levels. c A different group (20d) was conditioned over 20 days. d 8d and 20d groups showed equivalent levels of avoidance, pressing, and freezing at the end of conditioning. 8d group: n = 38; 20d group: n = 40. All data are shown of blocks of three trials as mean ± SEM.
