Introduction and objectives. - The two objectives of this study are to examine the effects of the introduction of post-event information (correct and incorrect) on the memory of the central and peripheral aspects of a given situation and to determine the effects of this additional information on the level of confidence claimed by the participants regarding their reported memories. Method. - One hour and a half after watching a film, the participants were presented with three types of information, by means of open questions: leading, misleading and neutral. One week later, they carried out a recognition task, during which they had to assess to what extent they were sure of their answers. Results. - While the memory of the event was more accurate concerning the central aspects of the event than the peripheral elements, the misinformation effect appeared only in the central condition. In addition, following the presentation of incorrect information, the participants were more certain of their answers related to the central aspects. Conclusion. - These results highlight the importance of taking into account the centrality factor in studies about the misinformation phenomenon. (c) 2015 Elsevier Masson SAS. All rights reserved.