Figure 5. Reactivation of individual cue odors during maintenance.

In PCx, working memory content during the delay period was decoded using a classifier trained on cue odor-induced patterns of theta-coupled gamma. When including all maintenance trials, classification accuracy for the three in-trial cue odors was higher than for the seven out-of-trial odors (paired-sample t-test, *p < 0.05). Model performance further improved when classification was limited to maintenance trials preceding a correct identity match judgment (hit or correct rejection [CR]; **p < 0.01). For the set of identity correct trials, decoding accuracies for cue odors presented in each of the three sequence positions were each higher vs. out-of-trial odors. Horizontal dashed line indicates chance-level accuracy; colors indicate individual subjects.