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  • Title: Working memory deficits in chronic fatigue syndrome: differentiating between speed and accuracy of information processing.
    Author: Deluca J, Christodoulou C, Diamond BJ, Rosenstein ED, Kramer N, Natelson BH.
    Journal: J Int Neuropsychol Soc; 2004 Jan; 10(1):101-9. PubMed ID: 14751012.
    Abstract:
    To examine the relative influence of speed of information processing versus working memory ability, CFS participants with psychiatric comorbidity (CFS-Psych) and CFS without a psychiatric history (CFS-noPsych) were examined on tests of visual and auditory processing speed and visual and auditory working memory. Compared to healthy controls (HC) and a group of participants with rheumatoid arthritis (RA), the CFS-noPsych group displayed significantly reduced performance on tests of information processing speed, but not on tests of working memory. No significant differences were observed between the CFS-Psych group and any other group in the study. The implications of group heterogeneity on the understanding of cognitive impairment in CFS are discussed.
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