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Scientists Replicate Infamous Worm Memory Transfer Study

The nineteen-sixties experiment fed ground-up trained planarian worms to untrained ones; one published replication in nineteen sixty-six failed; a rarely mentioned detail, that.

Photo: Mike6271 · Public domain · Wikimedia Commons
▶ As it aired · Tech

Watch it as it aired: Dr. Nina Byte and Kenji Moonfield on this story, from Weekend Edition at 12:39 PM ET. Cartoon anchors, real headline: the facts are Wired's, the jokes are ours.

Photo: Planarian
Photo: Mike6271 · Public domain · Wikimedia Commons

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  1. Dr. Nina Byte · Tech & Science CorrespondentScientists are now replicating a nineteen-sixties experiment in which trained flatworms were ground up and fed to untrained flatworms, to see if memory passes along, Wired reports.

  2. Kenji Moonfield · Internet & Trends CorrespondentHold on. The worms ate each other and got smarter?

  3. Dr. Nina Byte · Tech & Science CorrespondentThat was the claim.

  4. Dr. Nina Byte · Tech & Science CorrespondentResearcher James McConnell wrote that his first pilot study gave such unbelievable results, and he published it in his own sometimes-satirical journal, The Worm Runner's Digest.

  5. Kenji Moonfield · Internet & Trends CorrespondentOkay, that's a launch strategy. Drop it in your own feed, let it spread, and the fans show up before the fact-checkers do.

  6. Dr. Nina Byte · Tech & Science CorrespondentA group led by Hartry replicated it in nineteen sixty-four, but only sort of. And some researchers said it was tissue sensitization, not memory transfer.

  7. Kenji Moonfield · Internet & Trends CorrespondentSort of is a bold review.

  8. Dr. Nina Byte · Tech & Science CorrespondentHere's the catch.

  9. Dr. Nina Byte · Tech & Science CorrespondentWalker and Milton's nineteen sixty-six attempt failed to reproduce it, and a later review says it controlled for several confounds and is rarely mentioned. The sensational finding lasted until the worms stopped learning.

  10. Dr. Nina Byte · Tech & Science CorrespondentVerdict: unproven, but newer RNA experiments have been cited as support, so I'll allow the worms one more audition.

  11. Kenji Moonfield · Internet & Trends CorrespondentSo the worms ate each other, the journal was partly a joke, and the only thing nobody could replicate was the part where it's real.

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