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Average change in RT and search-related activity in no-perturbation trials. a, Average and SE of percentage change in RT in trials with (RTPB) relative to those without perturbations (RTNOPB) [(RTPB − RTNOPB)/RTNOPB], where RT is the average reaction time in each condition for each context and PTOA. *p < 0.01 relative to 0 (t test). b, Population neuronal responses on no-perturbation trials in the SAME condition (average and SE) when either the target or a distractor were in the RF.
