Risks of occurrence of psychoses in relation to the types of epilepsies and epileptic seizures

Folia Psychiatr Neurol Jpn. 1983;37(3):221-5. doi: 10.1111/j.1440-1819.1983.tb00322.x.


The possible existence of the risks of occurrence of psychoses was examined in relation to the types of epilepsies and epileptic seizures. This study consisted of two investigations: 1) A study of 879 epileptic patients was conducted in which the incidence of psychoses in the different types of epilepsies was surveyed; the result was that the incidence in temporal lobe epilepsy was the highest, being relatively higher than that of other (non-temporal lobe) partial epilepsies but not significantly different from that of generalized epilepsies. 2) A comparative study was carried out on 96 patients with temporal lobe epilepsy in which 48 were psychotic and another 48 were non-psychotic which served as a control group. The differences of seizure symptomatology between the two groups were compared. The results were that the psychotic group was found to exhibit at a significantly higher rate generalized tonic-clonic convulsion and compound seizure manifestations in comparison with the non-psychotic group. The results appear to support the fact that generalizing mechanisms of temporal lobe epileptic manifestations are closely related to a physiopathogenic factor influencing psychoses.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Epilepsies, Partial / complications
  • Epilepsy / complications*
  • Epilepsy, Temporal Lobe / complications
  • Epilepsy, Temporal Lobe / diagnosis
  • Humans
  • Middle Aged
  • Psychotic Disorders / complications*