Document Detail

Magnetoreception attributed to the efficacy of light therapy.
MedLine Citation:
PMID:  9848478     Owner:  NLM     Status:  MEDLINE    
A group of specialized photoreceptors are suggested to amplify the weak interaction of the geomagnetic field with a single electron spin to the level of photon detection, resulting in a modulation of the response to light. Under exposure to rotating magnetic field, the size of pinealocytes is bigger at night than during the day in spring, but there is no day-night difference in autumn. Specialized photoreceptors are hypothesized to modulate the response of the photoreceptive system to light, and the pineal response to a magnetic stimulus, in patients with winter seasonal affective disorder (SAD). This could explain why some winter SAD patients show excessive sensitivity to light in winter.
T Partonen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Medical hypotheses     Volume:  51     ISSN:  0306-9877     ISO Abbreviation:  Med. Hypotheses     Publication Date:  1998 Nov 
Date Detail:
Created Date:  1999-03-02     Completed Date:  1999-03-02     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7505668     Medline TA:  Med Hypotheses     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  447-8     Citation Subset:  IM; S    
Department of Psychiatry, University of Helsinki, Finland.
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MeSH Terms
Magnetics / therapeutic use*
Models, Biological*
Photoreceptor Cells, Vertebrate / physiology
Pineal Gland / physiology
Seasonal Affective Disorder / therapy

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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