Single trial data from the two experiments reported in the following paper are published here in MATLAB and CSV formats: **Visual working memory is independent of the cortical spacing between memoranda. Harrison WJ & Bays PM. Journal of Neuroscience 38(12): 3116-3123 (2018)** *Experiment 1* Column headers for columns 1 - 6 should be self-explanatory. Column 7 (“whichCond”) specifies radial (1) or tangential (2) arrangement of stimuli. Column 8 gives the temporal order of probed stimulus. Column 9 gives the specific probe position as follows: 1) Centre stimulus (radial configuration) 2) Inner most stimulus (radial configuration) 3) Outer most stimulus (radial configuration) 4) Centre stimulus (tangential configuration) 5) Stop stimulus (tangential configuration) 6) Bottom stimulus (tangential configuration) *Experiment 2* Note the .mat file includes two variables - a table (‘allData’) and a vector (‘threshold’) - the latter reports the crowding threshold for each participant. Column headers are the same as for Experiment 1 with the following important differences: Column 7 (whichCond) indicates crowded (0) or uncrowded (1) stimuli. Column 9 gives the specific probe position as follows: 1) left stimulus (crowded configuration) 2) centre stimulus (crowded configuration) 3) right stimulus (crowded configuration) 4) left stimulus (uncrowded configuration) 5) centre stimulus (uncrowded configuration) 6) right stimulus (uncrowded configuration)