Figure 10.

Unilateral and bilateral inactivation of the amygdala with muscimol impairs both trace and delay conditional freezing. Trace conditioned rats injected with muscimol prior to training exhibit impaired conditional freezing during the CS retention test (A) and during the context retention test (B) compared with saline controls. Similarly, muscimol-injected delay conditioned rats show impaired conditional freezing to the CS (C) and context (D). Unilateral inactivation of the amygdala produces an intermediate deficit in memory formation for delay conditioned rats. * p<0.05 relative to SAL; # p<0.05 relative to MUS-UNI.