ERP Correlates of Continuous Recognition Memory for Natural Scenes: Data

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Continuous EEG data were converted to EEGLAB/Matlab format and resampled to 1024 Hz. The datasets are otherwise unprocessed, except for updates to the EEG.event structure, which includes stimulus information, experimental conditions, and behavioral performance. Each .zip file crt_XX-XX_events.zip includes a batch of up to 8 to 9 datasets. Event information is also provided in the behavioral data files in Behavior.zip. Each row corresponds to a single trial, ordered in the sequence of presentation during the experiment. Columns encode the corresponding event and trial-level variables, including stimulus identity, condition labels, and behavioral responses. Column Description trial_no Sequential trial number within the experiment session. imgOnsetTime Time of stimulus onset in seconds relative to the start of the experiment filename Filename of the image stimulus shown on this trial. category_name Semantic category of the image (beaches, building, forest, highway). nPres Presentation number of this image: 1 = first time shown, 2 = second time, etc. maxPres Total number of times this image is presented across the entire session. lastTime Time in seconds that has passed since the previous presentation of this item. nextTime Time in seconds until the next presentation of this item. lastPres Trial number of the previous presentation of this image. 0 if this is the first presentation. nextPres Trial number of the next presentation of this image. NaN if this is the last presentation. ISI Inter-stimulus interval following this trial (seconds). report Raw response code recorded by the experiment software. reportOld Participant's recognition response: 1 = "old" (seen before), 0 = "new" (not seen before). reportCorrect Whether the recognition response was correct: 1 = correct, 0 = incorrect. rt Reaction time of the recognition response (seconds). subsCorrect Whether the immediately following presentation of this image was answered correctly. NaN if this is the last presentation. prevCorrect Whether the immediately preceding presentation of this image was answered correctly. NaN if this is the first presentation. SDT Signal detection theory classification of the trial: Hit (old item, responded "old"), Miss (old item, responded "new"), False Alarm (new item, responded "old"), or Correct Rejection (new item, responded "new"). Note: image material used in this experiment is available at: https://doi.org/10.17879/pnqjm-w5s77

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