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- Mandela Effect
- Episode 6
Mandela Effect: False Memory. Shared. Everywhere.Episode 61:50
The Four-Way Test for a Memory That Never Happened
A source test reveals that remembering a false detail and believing it came from the original event are not the same failure.
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Transcript
At Dragon Con, others believed Nelson Mandela died in prison in the 1980s.
That false memory gave a name to a phenomenon groups now call the Mandela Effect.
The record says Mandela was released in 1990, became president, died in 2013.
A 2013 study tested false recall and false recognition in a social contagion of memory paradigm.
Six scenes appeared 15 seconds each: toolbox, bathroom, kitchen, bedroom, closet, desk.
Then came erroneous items, presented as answers from five people who supposedly went first.
A confederate introduced items that were not present in the studied scenes.
The suggested items later appeared in individual memory tests.
At final test, each item had four sources: original, later information, both, or neither.
Across conditions, participants reported incorrect items, and initial testing didn't affect false recall.
Testing reduced false source recognition: fewer blamed the original scene for wrong details.
The authors concluded initial testing may protect memory from erroneous suggestions. Memory can feel certain while its source quietly slips away.
In 2010, Fiona Broome coined The Mandela Effect after finding this belief at Dragon Con.
The original study and later replication each tested 40 popular logo and character images.
Each set showed one correct version beside two subtle alterations.
The main findings replicated, but some chose the wrong icon minutes after seeing the correct one.
But even after looking directly at the correct icon area, some immediately chose the false version.
Where it leaves off
But even after viewers looked directly at the correct part of an icon, some immediately chose the false version.
Next: Episode 7, The False Icon Chosen After Seeing the Real One
Sources
- The Mandela Effect | Know Your Memeknowyourmeme.comsecondary
- The Mandela effect tricks our brains with false memories. Is AI making it worse? | National Geographicnationalgeographic.comsecondary
- Mandela Effect: 10 Examples of False Memorieshealth.clevelandclinic.orgsecondary
- The effects of initial testing on false recall and false recognitionmontana.edusecondary
- » Report #8: Replication of a study from “The Visual Mandela Effect as Evidence for Shared and Specific False Memories Across People” (Psychological Science | Prasad & Bainbridge 2022)replications.clearerthinking.orgprimary
- New Study Seeks To Explain The ‘Mandela Effect’ – The Bizarre Phenomenon Of Shared False Memories | Omaha Daily Recordomahadailyrecord.comsecondary
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