Electro-encephalographic investigations in myalgic encephalomyelitis

Area of Science:

• Neurology
• Epidemiology
• Neurophysiology

Background:

• Limited electroencephalography (EEG) data exists on insidious illnesses affecting cerebral function.
• Historical data from 1957-1977 provides a basis for understanding potential neurological impacts of unidentified diseases.

Purpose of the Study:

• To describe the main electroencephalography (EEG) features in young adults and children exposed to an unidentified illness.
• To highlight the importance of systematic, long-term EEG studies in future epidemic investigations.

Main Methods:

• Analysis of EEG recordings from 36 young adults (1960-1964) and 12 children (1957-1977).
• Examination of EEG alterations to infer disturbances in cerebral function.

Main Results:

• Modest, yet variable, EEG alterations were observed, indicating disturbed cerebral function.
• The findings suggest an insidious illness with a potentially widespread impact on brain activity.

Conclusions:

• The observed EEG changes, though subtle, point to neurological involvement by an unidentified pathogen.
• Systematic, multi-year EEG studies are crucial for characterizing the neurological impact of new epidemics.