Fig. 4.

αCaMKII autophosphorylation in central amygdala in young and aged mice after contextual fear conditioning. A) Representative images of phosphorylated and total αCaMKII in the central amygdala. Total αCaMKII stained using dsRed (red), phosphorylated αCaMKII stained using eGFP (green). Young untrained (far left), young trained (centre left), aged untrained (centre right), aged trained (far right), scale 20 μm. B) Contextual fear conditioning does not alter total αCaMKII levels in the central amygdala in young and aged mice. C) Contextual fear conditioning does not alter αCaMKII autophosphorylation in young and aged mice. D) Contextual fear conditioning does not alter the ratio of phosphorylated:total αCaMKII in the central amygdala in young and aged mice. Mean ± standard error of mean. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)