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Associations Among Attentional State, Retrieval Quality, and Mnemonic Discrimination
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Description: Memory specificity is shown when participants reject lures that are similar to studied objects. Lure rejections may reflect hippocampal pattern separation that encodes objects distinctively. However, lure features shared with studied objects may evoke pattern completion of varying quality. This was shown when self-reported attention during study promoted lure rejections and false alarms. We used an experimental and individual differences approach to examine the roles of attentive encoding and retrieval quality in lure classifications. An object-based mnemonic discrimination task included thought probes during study and subjective retrieval reports after recognition responses. On-task reports reflecting attentive encoding were associated with lure rejections and false alarms within-and between-subjects. Additionally, accurate lure and target classifications were more strongly associated with subjective recollection following on- than off-task reports. Collectively, these results suggest that attention during study was associated with recollection of criterial features that differentiated existing memories from perceptual inputs.