Within Memory
When UFO Sounds Grow More Detailed Later
Repeated retellings can turn a simple hum into a richer description without the witness intending to mislead anyone.
On this page
- The difference between first reports and later accounts
- How repetition can strengthen confidence
- Why investigators separate early and late sound claims
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Introduction
Many UFO reports do not stay fixed. A witness may initially describe a simple hum, buzz or vibration, only for later interviews to include much richer sound details. Years after the event, the remembered noise may be compared to electrical transformers, turbines, high-voltage cables, jet engines or even sounds felt inside the body rather than heard through the ears.
This pattern does not automatically mean a witness is fabricating a story. Research on eyewitness memory shows that recollections are reconstructed rather than replayed like recordings. Repeated retellings, conversations, documentaries, books and investigator interviews can all influence how a remembered sound is described. For investigators studying UFO noises, the gap between an earliest report and a much later retelling is often as important as the sound claim itself. [PMC]pmc.ncbi.nlm.nih.govPMCThe Neuroscience of Memory: Implications for the Courtroomby JW Lacy · 2013 · Cited by 263 — This 'misinformation' is considered misle… [American Psychological Association]apa.orgAmerican Psychological AssociationHow memory can be manipulated, with Elizabeth Loftus, PhDElizabeth Loftus, PhD, is one of the nation's…
The Difference Between First Reports and Later Accounts
One recurring feature in UFO case files is the expansion of sensory detail over time.
An early statement might contain only a brief reference:
“There was a humming sound.”
Years later, the same witness may remember:
“It sounded like a giant electrical transformer combined with a turbine.”
The later description often feels more informative and convincing because it provides concrete comparisons. Yet memory researchers have repeatedly found that people naturally fill in incomplete recollections with interpretations that make an event easier to understand and describe. The process is usually unconscious. Witnesses often experience the newer version as a clearer recovery of the original memory rather than a modification of it. [PMC]pmc.ncbi.nlm.nih.govPMCThe Neuroscience of Memory: Implications for the Courtroomby JW Lacy · 2013 · Cited by 263 — This 'misinformation' is considered misle… [American Psychological Association]apa.orgAmerican Psychological AssociationHow memory can be manipulated, with Elizabeth Loftus, PhDElizabeth Loftus, PhD, is one of the nation's…
This matters especially for sound. Most people do not catalogue unusual noises with technical precision during a startling event. They may register only that a sound was present, absent or strange. Later comparisons to machinery, electrical systems or aircraft can emerge after years of reflection and discussion.
In UFO investigations, early notes, police statements, newspaper interviews and contemporaneous letters therefore carry special value. They provide a snapshot of what the witness reported before later interpretation accumulated.
How Repetition Can Strengthen Confidence
One of the most misunderstood aspects of eyewitness memory is the relationship between confidence and accuracy.
Repeated retelling often increases a person’s confidence in a memory. Each recounting reinforces a coherent narrative, even if some details have gradually shifted. Psychologists studying eyewitness testimony have shown that post-event information can become integrated into memory while still feeling completely authentic to the witness. [Publishing Services]open.lib.umn.eduPublishing Services13Problems with Memory: Eyewitness TestimonyCognitive psychologist Elizabeth Loftus has conducted extensive research on memory. She has stu…
In UFO cases, repetition can occur through:
- Interviews with investigators.
- Conversations with family members.
- Media coverage.
- UFO conferences and discussion groups.
- Documentary productions.
- Reading other UFO reports.
A witness who repeatedly explains an event may gradually settle on a particular sound comparison because it communicates the experience effectively. Once that comparison becomes attached to the memory, it may be recalled as part of the original perception rather than as a later descriptive aid.
Research into the misinformation effect demonstrates that later information can alter recollections of earlier events. The altered memory is often sincerely believed rather than intentionally invented. [BPS Psych Hub]bpspsychub.onlinelibrary.wiley.comBPS Psych Hub The history of an idea: The misinformation effectBPS Psych HubThe history of an idea: The misinformation effect - Loftus24 Dec 2025 — These impairments in a person's memory after exposur… [Wikipedia]WikipediaMisinformation effectMisinformation effect
Why UFO Sound Details Are Especially Vulnerable
Visual details can sometimes be checked against photographs, radar records or environmental conditions. Sound memories usually lack that kind of independent verification.
Several factors make UFO noise descriptions unusually susceptible to later elaboration:
Sound is fleeting. Witnesses cannot revisit the original sensory experience in the way they might revisit a photograph.
Language is approximate. People often describe unfamiliar sounds by analogy. A hum may later become an electrical hum, then a transformer hum, then a specific industrial noise.
Expectation shapes interpretation. Exposure to other UFO reports can provide a vocabulary for describing unusual sounds. Witnesses who initially lacked a comparison may later adopt one that seems to fit.
Interview questions matter. Leading or suggestive questioning can encourage witnesses to search for details they never originally reported. Studies of eyewitness testimony have shown that wording and post-event discussion can influence later recall. Office of Justice Programs [Psychologist World]psychologistworld.comLeading Questions: How Interviewers Influence Eyewitness…Intentionally or accidentally, leading questions can impact on the testimonie…
The result is not necessarily a false memory of the entire event. Instead, a real perception may acquire increasingly specific characteristics over time.
When Community Narratives Influence Sound Memories
UFO reports rarely remain private. Once a case becomes widely discussed, witnesses are exposed to descriptions from other observers, investigators and commentators.
Memory researchers have found that social discussion can contaminate recall. People sometimes incorporate information from others into their own memories without recognising its source. [PMC]pmc.ncbi.nlm.nih.govPMCThe Neuroscience of Memory: Implications for the Courtroomby JW Lacy · 2013 · Cited by 263 — This 'misinformation' is considered misle… [Lumen Learning]courses.lumenlearning.comTestimony and Memory ConstructionOther studies have shown that misinformation can corrupt memory even more easily when it is encountered…
In the UFO field, this can happen when witnesses hear recurring themes such as:
- A low-frequency vibration.
- An electrical buzzing sound. [nicap.org]nicap.orgpilots. The mechanism for…Read more…
- A silent object that suddenly emitted a hum.
- A sound that seemed to come from inside the head.
- A vibration felt through the ground.
Once these ideas become familiar, they can provide a framework for interpreting an ambiguous original experience.
This does not require deliberate influence. A witness may simply encounter a description that resonates with their memory and gradually come to believe it captures what they heard all along.
Case Files Often Preserve the Growth of Detail
Historical UFO archives sometimes reveal differences between contemporary reports and later retellings.
Many archived reports contain sparse sound descriptions such as “humming”, “buzzing”, “whirring” or “vibration”. For example, some NICAP records preserve relatively brief references to a high-frequency hum or vibration associated with an overhead object. [NICAP]nicap.orgNICAPUFO ReportCase Directory Category 1, Distant Encounters Preliminary Rating: 5… Humming Sound June 23, 1957. Carmichael… hum or…
When the same events are discussed years later in books, documentaries or retrospective interviews, the sound descriptions can become more elaborate. The change is not always dramatic, but investigators frequently note that later narratives contain more sensory texture than the earliest available records.
This pattern is not unique to UFO reports. It mirrors broader findings from eyewitness research, where recollections often become more detailed and story-like over time even when objective accuracy does not improve. [ScienceDirect]sciencedirect.comScienceDirect Misinformation EffectMisinformation Effect - an overviewThe misinformation effect refers to the phenomenon whereby misleading or incorrect information receive… [YMAWS For that reason]sciencedirect.comWork by Elizabeth Loftus and her colleagues in the 1970s showed that eyewitness memory, like any…Read more…, experienced researchers often compare multiple versions of the same account rather than relying on a single late retelling.
Why Investigators Separate Early and Late Sound Claims
Investigators who treat witness testimony as evidence often distinguish between information reported immediately after an event and information that appeared later.
The distinction serves several purposes.
First, early statements are generally less exposed to outside influence. The witness has had less opportunity to absorb media coverage, discuss the event extensively or encounter competing interpretations.
Second, comparing versions can reveal which details remained stable. If a witness described a humming noise from the beginning, that element may carry more evidential weight than a later claim that the sound resembled a specific type of industrial machinery.
Third, the comparison can help identify memory contamination. Modern cognitive science increasingly treats eyewitness memory as evidence that can become contaminated rather than as a perfect recording of events. Early, uncontaminated accounts are therefore particularly valuable. [ScienceDirect]sciencedirect.comScienceDirect Misinformation EffectMisinformation Effect - an overviewThe misinformation effect refers to the phenomenon whereby misleading or incorrect information receive…
A growing sound description does not automatically invalidate a sighting. It does, however, change how that description should be evaluated.
The Key Question Is Timing, Not Drama
Readers often assume that a richer account is a better account. In UFO sound reports, that assumption can be misleading.
A witness who later recalls a highly detailed electrical buzz may be describing a genuine memory, a reconstructed memory or a mixture of both. The important question is not whether the later description sounds dramatic or convincing. It is when each detail first appeared.
For investigators examining UFO noises, chronology matters. A simple hum reported immediately after an event may ultimately be more reliable evidence than a vivid sound analogy that emerged decades later. Memory research suggests that confidence, detail and sincerity can all increase as a story is retold, even when the original sensory experience was far less specific. Noba [American Psychological Association]apa.orgAmerican Psychological AssociationHow memory can be manipulated, with Elizabeth Loftus, PhDElizabeth Loftus, PhD, is one of the nation's… [Wikipedia]WikipediaUFO reports and disinformationUFO reports and disinformationIn the era of flight, governments began using these techniques to protect secret aerial objects, sometim…
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UFOs
Provides witness cases and reporting examples that readers can compare against discussions of changing testimony and recollection.
The Believing Brain
Explains how memory, belief formation, pattern recognition and retrospective interpretation can reshape recollections over time.
The Demon-Haunted World
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Addresses extraordinary claims, evidence evaluation and the importance of distinguishing observation from interpretation.
Mistakes Were Made (but Not by Me)
Useful for understanding how confidence in memories and narratives can strengthen through repetition and self-justification.
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Endnotes
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PMCThe Neuroscience of Memory: Implications for the Courtroomby JW Lacy · 2013 · Cited by 263 — This 'misinformation' is considered misle...
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Title: Misinformation effect
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Title: ScienceDirect Misinformation Effect
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Misinformation Effect - an overviewThe misinformation effect refers to the phenomenon whereby misleading or incorrect information receive...
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PMCby M Kękuś · 2024 · Cited by 2 — The confident co-witness: the effects of misinformation on memory after collaborative discussion. App...
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NICAPUFO ReportCase Directory Category 1, Distant Encounters Preliminary Rating: 5... Humming Sound June 23, 1957. Carmichael... hum or...
Published: June 23, 1957
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ation that could be barely felt...
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UFO reports and disinformationIn the era of flight, governments began using these techniques to protect secret aerial objects, sometim...
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Title: Elizabeth Loftus
Link: https://en.wikipedia.org/wiki/Elizabeth_LoftusSource snippet
Elizabeth LoftusLoftus (born 1944) is an American psychologist who is best known in relation to the misinformation effect, false memor...
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Title: List of reported UFO sightings
Link: https://en.wikipedia.org/wiki/List_of_reported_UFO_sightingsSource snippet
List of reported UFO sightingsAt least three UFOs that looked like missiles but emitted no noise were spotted over Harbour Mille. 2010...
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Link: https://www.nicap.org/chronos/1975fullrep.htmSource snippet
1975 UFO Chronology15 Jun 2007 — Map prepared by Center for UFO Studies shows MUFON and CUFOS investigators.. January - March, 1975; Alge...
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pilots. The mechanism for...Read more...
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UFO ChronologyProduced for released: April 18, 2013. This is an 8-page chronology of UFO incidents and events for 1971. Our thanks for th...
Published: April 18, 2013
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Psychological aspects of the alien contact experienceby CC French · 2008 · Cited by 119 — Previous research has shown that people reporti...
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2008, Cortex. Citation Excerpt: Previous research has shown that sizeable minorities of respondents...Read m...
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Elizabeth Loftus - The Origins Podcast with Lawrence Krauss - FULL VIDEO...
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Elizabeth F. Loftus - False Memories...
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American Psychological AssociationHow memory can be manipulated, with Elizabeth Loftus, PhDElizabeth Loftus, PhD, is one of the nation's...
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Title: Publishing Services13
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Problems with Memory: Eyewitness TestimonyCognitive psychologist Elizabeth Loftus has conducted extensive research on memory. She has stu...
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Title: BPS Psych Hub The history of an idea: The misinformation effect
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BPS Psych HubThe history of an idea: The misinformation effect - Loftus24 Dec 2025 — These impairments in a person's memory after exposur...
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Link: https://www.psychologistworld.com/memory/leading-questions-eyewitness-testimonySource snippet
Leading Questions: How Interviewers Influence Eyewitness...Intentionally or accidentally, leading questions can impact on the testimonie...
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Link: https://courses.lumenlearning.com/waymaker-psychology/chapter/reading-eyewitness-testimony-and-memory-construction/Source snippet
Testimony and Memory ConstructionOther studies have shown that misinformation can corrupt memory even more easily when it is encountered...
Additional References
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Link: https://www.ted.com/talks/elizabeth_loftus_how_reliable_is_your_memorySource snippet
Elizabeth Loftus: How reliable is your memory? | TED TalkPsychologist Elizabeth Loftus studies memories. More precisely, she studies fals...
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Link: https://nobaproject.com/modules/eyewitness-testimony-and-memory-biasesSource snippet
Eyewitness Testimony and Memory BiasesHundreds of subsequent studies have demonstrated that memory can be contaminated by erroneous infor...
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Link: https://stanfordmag.org/contents/how-the-truth-gets-twistedSource snippet
Stanford MagazineHow the Truth Gets Twisted"People embrace eyewitness testimony so uncritically," Loftus says, "because they believe that...
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The Misinformation EffectThe misinformation effect happens when our memory for past events is altered after exposure to misleading inform...
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Link: https://zenodo.org/records/10588816Source snippet
The Weakest Link in the Chain of UFO EvidenceEyewitness reports of observations of UFOs are still the central argument in all discussions...
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Link: https://medium.com/resonant-archive/close-encounters-and-information-theory-why-ufo-reports-read-like-corrupted-data-2fe7709828edSource snippet
Why UFO Reports Read Like Corrupted DataCurrent UFO reports depend on eyewitness testimony. Terrible data source. Augment with better sen...
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Source: psychstory.co.uk
Link: https://www.psychstory.co.uk/memory/eye-witness-testimonySource snippet
factors affecting the accuracy of eye witness testimonyThe researchers found that children who engaged in conversation with co-witnesses...
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Dr. Loftus first became involved in studying false memory in the 1970s after doing theoretical studies of memory in graduate...Read more...
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Title: research report april 8 1955 cherry valley rockford il ufo incidentoverviewon ap
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April 8, 1955 – Cherry Valley / Rockford, IL UFO Incident...pdf nicap.org #RockfordScanner #Rockford #Illinois #paranormal #ufos #UAP #k...
Published: April 8, 1955
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Office of Justice ProgramsEyewitness Responses to Leading and Misleading...by RE Geiselman · 1986 · Cited by 228 — Instead, they volunte...
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