ArticleBrain sciences2013
Olfactory Hallucinations without Clinical Motor Activity: A Comparison of Unirhinal with Birhinal Phantosmia.
Article in Brain sciences, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Is canonical SD a clinically relevant model of migraine? Argument pro.The journal of headache and pain · 2025Review
- Spreading depolarization as a therapeutic target in migraine.Nature reviews. Neurology · 2025Review
- Self-Reported Parosmia, Phantosmia, and Gustatory Dysfunction Among Adults with Mild-to-Moderate COVID-19: A Cross-Sectional Study in Saudi Arabia.Clinics and practice · 2025Article
- Transient olfactory hallucinations after insular glioma surgery: a case report.Annals of medicine and surgery (2012) · 2025Article
- Review
- International consensus statement on allergy and rhinology: Olfaction.International forum of allergy & rhinology · 2022Review
- [Osmophobia and vestibular migraine]Revista de la Facultad de Ciencias Medicas (Cordoba, Argentina) · 2022Article
- Epileptic olfactory auras: a clinical spectrum.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2021Article
- Anosmia: A review in the context of coronavirus disease 2019 and orofacial pain.Journal of the American Dental Association (1939) · 2020Review
- The olfactory bulb as the entry site for prion-like propagation in neurodegenerative diseases.Neurobiology of disease · 2018Article
- Phantosmia and Dysgeusia following Endoscopic Transcribriform Approaches to Olfactory Groove Meningiomas.Journal of neurological surgery. Part B, Skull base · 2017Article
- No Laughing Matter: Gelastic Migraine and Other Unusual Headache Syndromes.Current pain and headache reports · 2016Review
- A case study of phantosmia cured by antibiotic treatment of an intranasal Pseudomonas stutzeri infection.Brazilian journal of otorhinolaryngologyArticle
- Phantosmia Among Pediatric, Adolescent, and Young Adult Patients Receiving Proton Beam Therapy.Advances in radiation oncologyArticle
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Olfactory hallucinations without subsequent myoclonic activity have not been well characterized or understood. Herein we describe, in a retrospective study, two major forms of olfactory hallucinations labeled phantosmias: one, unirhinal, the other, birhinal. To describe these disorders we performed several procedures to elucidate similarities and differences between these processes. From 1272, patients evaluated for taste and smell dysfunction at The Taste and Smell Clinic, Washington, DC with clinical history, neurological and otolaryngological examinations, evaluations of taste and smell function, EEG and neuroradiological studies 40 exhibited cyclic unirhinal phantosmia (CUP) usually without hyposmia whereas 88 exhibited non-cyclic birhinal phantosmia with associated symptomology (BPAS) with hyposmia. Patients with CUP developed phantosmia spontaneously or after laughing, coughing or shouting initially with spontaneous inhibition and subsequently with Valsalva maneuvers, sleep or nasal water inhalation; they had frequent EEG changes usually ipsilateral sharp waves. Patients with BPAS developed phantosmia secondary to several clinical events usually after hyposmia onset with few EEG changes; their phantosmia could not be initiated or inhibited by any physiological maneuver. CUP is uncommonly encountered and represents a newly defined clinical syndrome. BPAS is commonly encountered, has been observed previously but has not been clearly defined. Mechanisms responsible for phantosmia in each group were related to decreased gamma-aminobutyric acid (GABA) activity in specific brain regions. Treatment which activated brain GABA inhibited phantosmia in both groups.
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