Figure 6. Type II rats showed delayed OP implicit times in OP2 through OP4 in response to dim stimuli. Oscillatory potentials taken at −1.9 log cd s/m² showing implicit times for OP1 (A), OP2 (B), OP3 (C), and OP4 (D) at 8 weeks post-hyperglycemia. The colored asterisks correspond to a significant difference with the group that shares the color of the asterisks. Black asterisks correspond to a significant difference with every other group. * p<0.05, ** p<0.01. Results expressed as mean ± SEM.