Revisiting the Blind Implantation Paradigm: Robustness of False Memory Induction Under Controlled Conditions

The Blind Implantation paradigm was introduced as a scalable method for inducing false autobiographical memories without human interaction (Otgaar et al., 2022). We conducted a conceptual replication (N = 348) with a sample three times the size of the original, using a multi-target event design and a non-suggestive control group. Results confirm that the procedure reliably induces false beliefs and memories, supporting the reconstructive nature of memory. However, induction rates (12–15% for beliefs; 8.5% for memories) were substantially lower than in the original study. Furthermore, we found no evidence of an imagination effect, likely attributable to low task compliance. Exploratory analyses of written accounts support the validity of the paradigm and the utilized self-report scales. We discuss the implications for the scalability of memory research, emphasizing the need for comprehensive construct validation to assure differentiation of genuine memory distortion from other experimental effects in unmonitored online settings.