All correctly performed trials were included in analyses. All analyses of individual MUA and LFP channels were averaged across all electrodes in each hemisphere, and analyses of channel pairs were averaged across all between-hemisphere or all within-hemisphere pairs. Analysis was initially performed separately for each prefrontal hemisphere and sample object hemifield. Results were then pooled based on whether the sample was contralateral or ipsilateral to a given hemisphere by averaging across appropriate hemisphere/hemifield combinations. This resulted in a set of observations for each experimental session. All plots depict means and standard errors across all 56 sessions in this dataset, and all statistics were performed with sessions treated as observations (n = 56). All preprocessing and analysis was performed in Python 3.6 or MATLAB R2019b (The Mathworks, Inc, Natick, MA).
