Fig. 4. Extensive training on the MCOAT does not alter female bias toward avoiding aversive stimuli.

a Schematic of extensive discrimination and conflict task. b Males, but not females, significantly changed their bias over extensive experience with the task. c There was no difference in the number of days to criterion between sexes. d Once both groups met discrimination criterion, they demonstrated similar levels of discrimination. Following extended discrimination training, males and females both showed a response bias for shock avoidance in conflict trials. e Both males and females showed increased Log d values with extended discrimination. f At the end of the extended discrimination phase, males and females show similar Log d and Log b values. Data represented as mean ± S.E.M. **p < 0.01.