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We used a continuous-response memory precision task to measure the quality of remembered experiences that underlie two different types of reality monitoring decisions: self\/experimenter decisions that distinguish actions performed by participants and the experimenter and imagined\/perceived decisions that distinguish imagined and perceived experiences. The data revealed memory precision to be associated with higher accuracy in both self\/experimenter and imagined\/perceived reality monitoring decisions, with lower precision linked with a tendency to misattribute self-generated experiences to external sources. We then sought to investigate the possible neurocognitive basis of these observed associations by applying brain stimulation to a region that has been implicated in precise recollection of personal events, the left angular gyrus. Stimulation of angular gyrus selectively reduced the association between memory precision and self-referential reality monitoring decisions, relative to control site stimulation. The angular gyrus may, therefore, be important for the mnemonic processes involved in representing remembered experiences that give rise to a sense of self-agency, a key component of \u201cautonoetic consciousness\u201d that characterizes episodic memory.<\/jats:p>","DOI":"10.1162\/jocn_a_01814","type":"journal-article","created":{"date-parts":[[2022,1,11]],"date-time":"2022-01-11T14:42:49Z","timestamp":1641912169000},"page":"687-698","update-policy":"https:\/\/doi.org\/10.1162\/mitpressjournals.corrections.policy","source":"Crossref","is-referenced-by-count":12,"title":["Episodic Memory Precision and Reality Monitoring Following Stimulation of Angular Gyrus"],"prefix":"10.1162","volume":"34","author":[{"given":"Simon","family":"Kwon","sequence":"first","affiliation":[{"name":"University of Cambridge"}]},{"given":"Franziska R.","family":"Richter","sequence":"additional","affiliation":[{"name":"University of Leiden"}]},{"given":"Michael 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