Document Detail

Incidence and characteristics of McCollough aftereffects following video display terminal use.
MedLine Citation:
PMID:  3681504     Owner:  NLM     Status:  MEDLINE    
After using video display terminals (VDT), some persons notice that achromatic patterns appear faintly colored hours after terminal use. We investigated the incidence of this effect, the McCollough effect (ME), among 125 VDT users. Subjects completed a questionnaire regarding work habits and certain life-style aspects. They were shown photographs of varying spatial frequencies to identify the adapting stimulus responsible for the ME. The incidence of ME after routine use of VDTs was 19.1%. The adapting stimulus was the repeating character lines of the VDT. No aspect of life-style investigated appeared to predispose an individual to develop the ME. Those subjects who developed the ME did not differ from those who did not in age, sleep, caffeine consumption, use of medication, refractive errors, or computer usage, nor did they have a higher incidence of ocular defects or eye strain.
J H Seaber; B Fisher; G R Lockhead; M L Wolbarsht
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of occupational medicine. : official publication of the Industrial Medical Association     Volume:  29     ISSN:  0096-1736     ISO Abbreviation:  J Occup Med     Publication Date:  1987 Sep 
Date Detail:
Created Date:  1987-12-21     Completed Date:  1987-12-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7502807     Medline TA:  J Occup Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  727-9     Citation Subset:  IM    
Department of Ophthalmology, Duke University, Durham, NC.
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MeSH Terms
Computer Systems*
Figural Aftereffect*
Occupational Diseases / psychology*
Vision Disorders / psychology*

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