To save content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about saving content to .
To save content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Most studies examining the comorbidity of epilepsy and psychiatric disorders have been cross-sectional in hospital- and institution-based populations. This chapter summarizes community-based studies of psychiatric comorbidity in epilepsy. While cross-sectional studies of psychiatric disorders and epilepsy provide valuable public health information and inform epileptologists and psychiatrists, they have significant limitations. Over the past 20 years, a body of work has emerged examining whether specific psychiatric disorders are associated with an increased risk for developing epilepsy, and assessing the incidence of psychiatric disorders after the onset of epilepsy. Attention-deficit hyperactivity disorder (ADHD) and depression is associated with an increased risk for developing epilepsy. Several studies show that a history of major depression is associated with an increased risk for developing unprovoked seizures. Studies examining the time order of the relationship between psychosis or schizophrenia and epilepsy have all been conducted in population-based registries.
Except for the immediate effects of a seizure on mental function, such as complex partial status epilepticus and postictal confusion, modern epileptic psychoses can be categorized into three main types: chronic, acute interictal and postictal psychoses. In 1953, Landolt stressed a seesaw relationship between epileptic seizures and psychoses, and proposed the concept of forced normalization. In 1963, Slater made a rather comprehensive report on chronic psychoses in patients with epilepsy (Slater and Beard, 1963). In contrast, it was as late as 1988 before the concept of postictal psychoses was revived by Logsdail and Toone. This delay in conceptual formation is all the more peculiar, when considering the very old root of the concept of postictal psychosis.
In 1860, a French psychiatriat, Farlet, classified epileptic psychoses into three categories: transient peri-ictal, chronic and true epileptic psychosis (Farlet, 1860/1961). As there was a lack of strict distinctions between preictal, intraictal and postictal events at that time, it is not easy to compare Farlet's classification to those of the present. While transient peri-ictal psychosis overlaps postictal confusion and the meaning of chronic psychosis is evident, Farlet's true epileptic psychosis has no clear counterpart in modern classifications. Farlet assigned extreme psychomotor agitation as well as extraordinarily aggressive and self-destructive behaviour to his unique classification. As I will discuss later, these are salient psychopathological traits of postictal psychoses. Indeed, John Hughlings Jackson (1875), a pioneer of modern epileptology, stressed that the true epileptic psychosis described by Farlet often followed clusters of seizures.
Email your librarian or administrator to recommend adding this to your organisation's collection.