Wednesday, June 18, 2025

Haunted by infrasound (part 2)

 


More from ChatGPT on infrasound, haunted houses, and such. Continued from previous blog post. 

Yes, please.

Great — let’s explore how infrasound is intentionally used in modern haunted house design, psychological studies, and paranormal research to mimic or provoke supernatural experiences.


🎢 1. Infrasound in Haunted House Attractions

🎧 How It’s Used:

  • Low-frequency speakers (subwoofers) are placed in rooms or hidden under floors.

  • These emit infrasound frequencies between 17–20 Hz, often just below conscious hearing.

  • Combined with dark lighting, sudden temperature shifts, or flickering lights, infrasound increases feelings of unease and dread.

💀 Effects on Visitors:

  • Even without seeing anything, visitors may report:

    • Feeling watched or followed

    • “Chills” or goosebumps

    • Nausea or unease

    • Hearing whispers or footsteps

  • Many haunted house designers call infrasound a “fear tone” — it primes the brain to interpret neutral stimuli as threatening.


🧪 2. Scientific Studies of Infrasound and Paranormal Sensation

🎼 The “Infrasonic Concert” Study (UK, 2003)

  • Researchers added 17 Hz tones to a live music concert without telling the audience.

  • Results:

    • Audience members reported:

      • Anxiety, chills, sorrow, or euphoria

      • Vague sense of a presence or floating sensation

    • Many were convinced something “paranormal” had occurred.

📚 Citation: “The Effect of Infrasound on Humans” – conducted at the Royal Festival Hall, London, by Richard Lord and collaborators.


🧪 The “Ghost Room” Experiment (2004, Richard Wiseman)

  • Set up: Participants entered a “haunted” room engineered to subtly contain infrasound, magnetic fields, and visual ambiguity (e.g., dim lighting, weird angles).

  • Outcome:

    • People reported strange sensations, including being touched or watched.

    • Most attributed it to ghosts or spirits, even though the room was artificially designed.


🧠 Summary of Lab Results

ConditionCommon Response
Infrasound (~17 Hz)Dread, chills, heart flutter, “presence”
Magnetic fields (ELF)Odd sensations, visual distortions
Dim lighting/ambiguityIncreased pareidolia (seeing faces/forms)

🏠 3. Infrasound in Allegedly Haunted Buildings

Researchers investigating haunted castles, tunnels, and hospitals often find:

  • Old pipes, HVAC systems, or even wind blowing through cracks creating persistent infrasound.

  • Basement boiler rooms, subway tunnels, and catacombs often resonate at 17–20 Hz.

  • When this is corrected (e.g., soundproofing or mechanical repair), the paranormal reports often diminish or disappear.


⚙️ 4. Portable “Ghost Generators” in Experimental Design

  • Some investigators and skeptics use portable infrasound generators to reproduce paranormal effects in field studies.

  • These can simulate:

    • “Haunted” sensations in supposedly non-haunted rooms

    • Changes in perception during paranormal investigation recreations


👻 Why Infrasound Tricks the Brain

  • Infrasound may stimulate the vestibular system, amygdala, or temporal lobes.

  • These areas regulate:

    • Balance and spatial orientation

    • Fear, emotional memory

    • Visual and auditory processing

This explains why people feel disoriented, afraid, or sense a presence — even when no threat is present.


🧭 Conclusion: Natural Causes, Supernatural Feelings

Infrasound is a powerful environmental factor that can:

  • Mimic the core elements of a haunting

  • Explain the physiological effects of “ghosts” or “spirits”

  • Be used deliberately to amplify fear or awe

🧠 We’re wired to explain mysterious bodily sensations with supernatural interpretations, especially when culturally primed to do so.


Would you like to explore magnetic fields, carbon monoxide poisoning, or pareidolia as other natural causes of “ghostly” encounters? 

Yes, carbon monoxide poisoning.

Great choice! Carbon monoxide (CO) poisoning is a very interesting and often overlooked natural cause behind many reports of paranormal experiences or "hauntings."


🧪 What Is Carbon Monoxide (CO)?

  • Carbon monoxide is a colorless, odorless, and tasteless gas produced by incomplete combustion of fuels (like wood, gas, or coal).

  • Common sources in homes include faulty furnaces, gas stoves, fireplaces, or blocked chimneys.


⚠️ How CO Affects Humans

CO binds to hemoglobin in the blood much more strongly than oxygen, reducing oxygen delivery to organs, especially the brain. This causes hypoxia (oxygen deprivation), leading to a variety of symptoms:

Exposure LevelSymptoms
LowHeadache, dizziness, nausea, fatigue
ModerateConfusion, blurred vision, shortness of breath
HighHallucinations, loss of consciousness, death

👻 CO and Paranormal Experiences

  • Early symptoms of CO poisoning (dizziness, headaches, confusion) can be mistaken for anxiety or a supernatural presence.

  • Moderate exposure can cause visual and auditory hallucinations, making people see or hear things that aren’t there.

  • People sometimes report:

    • Feeling watched or touched

    • Hearing footsteps, whispers, or voices

    • Seeing apparitions or shadowy figures

  • Because CO poisoning often occurs during cold weather when windows and doors are closed, people might attribute these sensations to ghosts or spirits.


🔍 Famous Cases and Investigations

  • Some “haunted house” investigations discovered elevated CO levels due to faulty heating systems.

  • In a few tragic cases, entire families suffered CO poisoning, which was misinterpreted as a curse or haunting before proper testing.

  • Paranormal researchers now advise checking for CO leaks when investigating “haunted” locations.


🧠 Why CO Causes Hallucinations

  • The brain’s oxygen deprivation disrupts normal neural activity, particularly in areas responsible for sensory processing and consciousness.

  • This can produce vivid, dreamlike experiences while awake.

  • Unlike infrasound or magnetic fields, CO is a toxic physical agent, so symptoms worsen over time without treatment.


Summary Table

CO EffectDescriptionParanormal Interpretation
Headache, nauseaPhysical discomfortFeeling “unwell” or uneasy
Confusion, dizzinessImpaired thinking“Foggy mind” or disorientation
HallucinationsSeeing/hearing things that aren’t realGhosts, spirits, poltergeist events
Loss of consciousnessFainting or blackouts“Spirit attacks” or possession

🚨 Safety Note

Because CO is deadly, any report of strange experiences accompanied by physical symptoms in an enclosed space should trigger immediate testing for CO leaks.


Would you like to learn about pareidolia next? It’s another fascinating psychological phenomenon behind many supernatural sightings!

So there are actually architects who design "real" haunted houses? For what purpose? Amusement parks? 

Yes! There really are architects and designers who specialize in creating “real” haunted houses, and they do so for various purposes — mostly entertainment, but also experimental and educational. Here’s the scoop:


🎃 Haunted House Design: The Real Deal

Who Designs Them?

  • Specialized set designers, architects, and theatrical designers work together to build immersive haunted attractions.

  • They often have backgrounds in theater, special effects, psychology, and architecture.

Why Design Haunted Houses?

  1. Entertainment & Amusement Parks

    • The most common reason.

    • Places like Universal Studios’ Halloween Horror Nights, Knott’s Scary Farm, and other theme parks commission realistic haunted houses to thrill visitors.

    • Designs incorporate lighting, sound, infrasound, visual effects, animatronics, and maze layouts to maximize fear and excitement.

  2. Seasonal Attractions

    • Haunted houses pop up around Halloween in many cities, often run by companies or volunteers.

    • Designed to create a safe but intense “fear experience.”

  3. Psychological Experimentation

    • Some haunted house designers collaborate with psychologists to study fear responses and how people react to environmental stimuli.

    • Controlled environments can be used to test effects of infrasound, lighting, and spatial design on human perception.

  4. Escape Rooms / Immersive Theater

    • Some haunted house experiences blend storytelling, puzzles, and scares.

    • These are used for team-building, entertainment, or art installations.


🎯 Can They Be Used to Get Genuine Paranormal Experiences?

  • No evidence that haunted houses create “real” paranormal phenomena.

  • However, well-designed haunted houses can trigger very real psychological and physiological responses that mimic classic ghost encounters:

    • Feelings of presence or being watched

    • Hallucinations (visual or auditory)

    • Increased heart rate, adrenaline rush


🎛️ Design Techniques Used

  • Infrasound generators (below 20 Hz) to induce unease.

  • Strobe lighting and shadow play to confuse vision.

  • Hidden speakers and directional sound for whispers or footsteps.

  • Temperature control to create sudden cold spots.

  • Maze layouts to disorient visitors.

  • Tactile effects like brushes or vibrations to simulate touch.


Summary

PurposeDescription
Amusement/Theme ParksEntertainment, thrill-seeking visitors
Seasonal Haunted AttractionsCommunity events during Halloween
Psychological ResearchStudy of fear and perception
Immersive Theater/Escape RoomsBlending storytelling with scares

If you want, I can share some examples of famous haunted houses or designers in the industry! Would you like that?

Haunted by infrasound (part 1)

 


Here we go! More skepticisim from ChatGPT. 

Can you tell me more about the effects of infrasound on humans and human perception?

Absolutely — infrasound is one of the most fascinating and eerie natural phenomena that can influence human perception, emotion, and even hallucination.


🔊 What Is Infrasound?

  • Infrasound refers to sound waves below 20 Hz, beneath the range of human hearing.

  • Though we can’t consciously hear infrasound, our bodies can detect it, especially through pressure-sensitive organs like the inner ear, chest cavity, and gut.

  • Sources can be natural (earthquakes, volcanoes, ocean waves, wind through caves) or man-made (engines, fans, HVAC systems, industrial machinery).


🧠 Effects of Infrasound on Humans

Research has shown that exposure to infrasound can cause a range of psychological and physical effects, especially in specific frequency bands and intensities:

😨 1. Feelings of Unease or Anxiety

  • People often report a sense of dread, panic, or being watched.

  • Even short exposure (e.g., in experiments or near turbines) can cause unexplained fear or discomfort.

This is sometimes called the "haunted house effect" — infrasound in old buildings or tunnels may explain ghost sightings.


👁️ 2. Visual Distortions and Hallucinations

  • At ~18.9 Hz, infrasound can cause the eyeball to vibrate slightly — possibly producing blurred vision, shadowy movements, or phantom shapes.

  • This may explain apparitions seen in caves, catacombs, or old castles where low-frequency resonances occur.

British researcher Vic Tandy discovered this in the 1990s while working in a lab where people reported ghosts — later traced to an infrasound-emitting fan.


💓 3. Physical Sensations

  • Chest pressure, nausea, dizziness, headaches, and even minor trembling can result from strong infrasound.

  • Some people feel heart palpitations or difficulty breathing when exposed.


💤 4. Sleep Disturbance and Disorientation

  • Continuous infrasound (even at low levels) can disrupt sleep cycles, increase stress hormones, and impair cognitive focus.

  • Can feel like a form of low-grade sensory torture — deeply unsettling even when the source is unknown.


🧪 5. Mood Alteration and Emotional Impact

  • Studies suggest infrasound might influence emotion regulation by stimulating the amygdala or triggering fight-or-flight responses.

  • Even during controlled concerts with added infrasound (like one experiment in the UK), audiences reported:

    • Sudden sadness

    • Chills

    • Nervousness

    • A “sense of presence”


🗿 Infrasound in Sacred and Haunted Locations

Many traditional “mystical” or “haunted” sites may coincidentally amplify or resonate with low-frequency sound:

  • Caves, cathedrals, megaliths, tunnels, wind-swept valleys

  • Wind interacting with specific geological features can create standing waves of infrasound

  • Ancient sites like Stonehenge or Newgrange may have been selected for acoustic properties that enhance altered states of mind


🧬 Sensitivity and Variation

  • Not everyone is equally sensitive — around 20–30% of people are particularly responsive to infrasound.

  • Those with anxiety, migraine sensitivity, or high auditory sensitivity may be more vulnerable.


🧠 Summary

EffectDescription
Anxiety/DreadFeeling of being watched or impending doom
Visual disturbancesShadowy shapes, flickers, “presence” hallucinations
Physical symptomsNausea, chest pressure, headache, heart flutter
Sleep disruptionRestlessness, fatigue, vivid or disturbing dreams
Emotional shiftsSudden sadness, nervousness, even euphoria or awe

In short: Infrasound can create natural “paranormal” experiences — and might explain legends of ghosts, spirits, and fairies in certain environments, especially caves, old buildings, or misty forests.

Would you like examples of locations where infrasound is suspected to play a role in folklore or hauntings?

Yes, please.

Here are some famous locations and legends where infrasound is believed to contribute to paranormal experiences, feelings of dread, or hallucinations. Many of these sites are associated with ghosts, spirits, fairies, or mysterious presences — and infrasound offers a compelling natural explanation.


🏰 1. The Edinburgh Vaults (Scotland)

  • What: A series of underground chambers beneath Edinburgh, used historically for storage, slums, and illicit activities.

  • Claims: People report ghostly presences, sudden fear, pressure in the chest, and shadowy figures.

  • Infrasound Link: The structure contains long stone corridors and narrow arches that can trap low-frequency sound waves (from above-ground traffic, air movement, or natural resonance).


🗿 2. Stonehenge (England)

  • What: Ancient Neolithic monument in Wiltshire, linked to solstice rituals and mystical energies.

  • Claims: Feelings of euphoria, awe, altered time perception; some report a sense of being watched or guided.

  • Infrasound Link: Acoustic modeling shows that the stones amplify low-frequency vibrations, possibly enhancing altered states during rituals, especially when wind blows across the plain.


🕳️ 3. Sedlec Ossuary (Czech Republic)

  • What: A small chapel decorated with bones, built on consecrated ground with thousands of burials.

  • Claims: Ghostly voices, cold spots, dread, a “presence” felt during quiet times.

  • Infrasound Link: Subterranean spaces like crypts naturally trap infrasound, which can be generated by wind, footsteps, or even barometric pressure changes.


🧚 4. Fairy Glen (Isle of Skye, Scotland)

  • What: A landscape of cone-shaped hills and spiral rock formations.

  • Claims: Many locals and visitors report a sense of timelessness, light-headedness, or “otherworldly presence.” Traditionally linked with fairies.

  • Infrasound Link: The glen’s wind and topography could generate natural infrasound vibrations, subtly affecting perception.


🔦 5. Wookey Hole Caves (Somerset, England)

  • What: A system of limestone caves associated with legends of witches and fairies.

  • Claims: Cold breezes, feelings of unease, and ghost sightings; legend says a witch was turned to stone inside.

  • Infrasound Link: Air moving through narrow cave passages can produce natural resonant frequencies, including infrasound, especially during changes in barometric pressure.


🕍 6. The “Haunted Room” at Hampton Court Palace (England)

  • What: One of King Henry VIII’s residences; visitors often report chilling sensations and ghostly encounters in certain rooms.

  • Claims: Feelings of being watched, dizziness, and spectral visions.

  • Infrasound Link: Research has suggested that old ventilation systems, pipes, and architectural acoustics could be generating infrasound in some rooms.


🌋 7. Mount Shasta (California, USA)

  • What: Volcanic mountain tied to legends of Lemurians, UFOs, and spirit beings.

  • Claims: Visions, altered states, and mystical experiences in caves or on the slopes.

  • Infrasound Link: Volcanic geology and geothermal activity can generate infrasound. Add thin air, solitude, and magnetism, and you have a perfect storm for hallucination and spiritual interpretation.


🌫️ 8. Marshy Wetlands and Will-o’-the-Wisps

  • What: Swampy areas where travelers historically reported floating lights and mysterious figures.

  • Claims: Fairy lights, leading travelers astray; feelings of enchantment or dread.

  • Infrasound Link: Marshes can produce phosphine gas, but also amplify wind-generated infrasound. The low vibrations + visual effects = classic “supernatural” territory.


👻 Summary

These locations share key features:

Common FeaturesEffects Experienced
Enclosed stone/underground structuresPressure, dread, “presence”
Windy or resonant terrainHallucinations, audio illusions
Natural caves and wetlandsDisorientation, fairy/ghost sightings
Ritual or sacred settingsAltered consciousness, awe, visions

If you're interested, I can also show you how modern haunted house designers intentionally use infrasound to make environments feel "haunted" — and how it's being tested in scientific studies of paranormal claims. Would you like to dive into that?