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Rare disorder alters reality for sufferers
A nine-year-old boy from Canberra began seeing buildings loom larger and teachers' faces stretch unnaturally, leaving his parents puzzled. After nearly two years, doctors identified the cause: Alice in Wonderland syndrome (AIWS), a condition that warps how individuals perceive their surroundings and even their own bodies.
Symptoms mirror fictional tale
Josh Firth's episodes included walls closing in, fingers swelling to unmanageable sizes, and voices sounding slower or deeper. These distortions-ranging from visual to auditory-echo the experiences of Lewis Carroll's protagonist, who famously shrank and grew after consuming mysterious substances. Researchers believe Carroll may have drawn from personal migraines or other neurological episodes when crafting the story.
AIWS manifests in over 40 distinct visual distortions. Patients report seeing faces morph into dragon-like shapes, limbs detach and reattach to others, or objects shrink and expand unpredictably. Some describe motion appearing unnaturally fast or frozen, while others hear speech at distorted speeds. The syndrome's namesake symptom-feeling one's body change size-remains its most iconic.
Causes remain elusive
First formally described in 1955, AIWS's origins are still unclear. Studies link it to migraines, epilepsy, brain tumors, strokes, and infections like Lyme disease or influenza. In children, Epstein-Barr virus-induced encephalitis is the most common trigger, while adults often develop it alongside migraines. Even cough medicines or hallucinogens can provoke temporary symptoms.
Neuroscientists suspect dysfunction in the brain's temporo-parietal-occipital junction, where sensory signals converge. Damage or swelling in this region may disrupt how the brain interprets visual and spatial information, though research remains limited by the syndrome's rarity and fleeting symptoms.
Diagnosis challenges and daily impacts
Jan Dirk Blom, a Leiden University psychopathology professor, notes that AIWS is frequently overlooked, delaying diagnosis for years. Gillian Harris, diagnosed at 48 after decades of symptoms, described her limbs appearing "massive" as a teenager. "You lose your independence," she said. "I avoided trains and buses alone, fearing an episode on the platform."
"The whole process of perception is far more intricate than we assume. AIWS reveals how fragile our sense of reality can be."
Moheb Costandi, neuroscientist and author
While most cases resolve over time, recurrences depend on the underlying cause. Gillian, now 54, has been symptom-free for two years after adjusting her epilepsy medication. Josh, however, still experiences episodes but copes by using a pocket mirror to "reality-check" his surroundings.
Research offers glimpses into brain function
Despite its rarity, AIWS provides valuable insights into how the brain constructs perception. Moheb Costandi explains that perception is an active process shaped by past experiences. When disrupted, it can lead to depersonalization (feeling detached from oneself) or derealization (perceiving the world as unreal).
Blom emphasizes the syndrome's paradox: minor neural disruptions can drastically alter perception, while severe brain damage sometimes leaves it intact. "It teaches us which brain regions are absolutely crucial for basic functions like recognizing faces or movement," he said.
Up to 30% of adolescents report mild, transient AIWS symptoms, suggesting the condition may be more common than previously thought. Yet its fleeting nature complicates study, as brain scans during episodes are difficult to obtain.
