(a) Correlation analysis revealed that truncated tau (CTau) levels showed no significant association with the learning index (P=0.5434, R2=0.02087) or (b) the latency to fall (P=0.0560, R2=0.1882). (c) Similarly, increased caspase activity showed no significant association with the learning index (P=0.0947, R2=0.0.1474). (d) In contrast increased caspase activity showed a significant negative association with the latency to fall (P=0.0191, R2=0.2690). Square symbols represent young, triangles represent aged. n = 10 mice per group.