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Controlled Odor Mimic Permeation Systems for Olfactory Training and Field Testing

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Phantosmia as a meteorological forecaster.

S R Aiello¹, A R Hirsch

¹University of Michigan-Ann Arbor, Ann Arbor, Michigan, USA.

International Journal of Biometeorology

|March 5, 2013

Summary

This summary is machine-generated.

This study reports the first case of weather-induced phantosmia, a phantom smell disorder. The patient

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Area of Science:

Neurology
Olfactory Disorders
Sensory Perception

Background:

Olfactory perception can fluctuate with environmental conditions like humidity and barometric pressure.
Phantom pain linked to weather changes is documented, but chemosensory hallucinations have not been previously reported in this context.

Observation:

A 64-year-old male with Parkinson's disease experienced a 5-year history of phantosmia (olfactory hallucinations).
The phantom odors evolved over time and were associated with phantom tastes when severe.
Phantosmia intensity correlated with weather changes, intensifying before and during storms.

Findings:

The patient's phantosmia worsened with factors affecting intranasal pressure, like coughing.
Actual smells and tastes temporarily replaced the phantosmia during eating or sniffing.
Underlying hyposmia was confirmed through extensive olfactory testing.

Implications:

This case presents the first evidence of a link between weather phenomena and exacerbated phantosmia.
Potential mechanisms include barometric pressure-induced synesthesia, olfactory nerve discharge abnormalities, or sensory amplification.
Further research is needed to explore the connection between chemosensory complaints and meteorological factors.