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Synchronicity of the EEG signal: a marker of brain dysfunction in patients with psychogenic non-epileptic seizures?
  1. Roderick Duncan
  1. Correspondence to Dr Roderick Duncan, West of Scotland Regional Epilepsy Service, Southern General Hospital, Govan Road, Glasgow G51 4TF, UK; r.duncan{at}

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Psychogenic non-epileptic seizures (PNES, pseudoseizures) are common and occur in a wide variety of populations. A proportion of patients have antecedent epilepsy (10–15%) or learning disability (approximately 10%).1 Even taking these two conditions into account, a higher-than-expected proportion of patients with PNES have evidence of brain dysfunction, as reflected by abnormalities of imaging, EEG recordings or psychometric tests.2 It has been proposed that certain types of brain dysfunction may predispose to the development of PNES, and frontal-lobe functions such as …

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  • Competing interests None.

  • Provenance and peer review Commissioned; not externally peer reviewed.

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