Academic studies on claimed past-life memories: A scoping review

This study reviews observational studies regarding alleged past-life memories published as scientific articles, and points out their bibliometric and methodological characteristics. Scientific databases were screened (Scopus, Web of Science, PubMed/Medline, PsycINFO, Scielo, and OpenGrey). The 78 included studies were classified by their methodological and bibliometric characteristics. The peak of publications occurred from 1990 to 2010 (45%), and Asia was the most investigated territory (58 studies); most of investigations were related to children (84%) and case report was the predominant study design (60%). Interview was the predominant methodological approach (73%), followed by documental analysis (50%). Claimed past-life memories (100%), unusual behaviors (74%) and birthmarks/defects (37%) were the most investigated variables. Investigations of past-life memories should be encouraged around all cultures, and future studies should consider previous methodological features and try to overcome their limitations.