Figure 2.
Reaction times (± SEM) plotted for each of the six delays for both groups on a.) easy and b.) hard choice trials. FH− (open circles) and FH+ (filled circles). Group differences were seen for both easy and hard choice reaction times [easy choice RT: F (1, 26) = 12.20, p = .002; hard choice RT: F (1, 26) = 4.22, p = .05]. c.) Reaction times (± SEM) on control trials for each group [t(21.1) = −2.61, p = .016]. d.) Summary graph showing easy and hard choices collapsed across the six delays for both groups. * denotes p = .01 between-subjects main effect on reaction time.