Natural atmospherics and occurrence of seizures in six adolescents with epilepsy: a cross correlation study

Abstract

As already seen in a former study of 315 epileptic seizures in adults, subsequent investigation of 3333 epileptic seizures in six adolescents revealed a significant increase of the seizure frequency during days with a higher mean frequency of 28 kHz atmospherics, and a decrease during days with a (Baumer apparatus) distinctly higher amount of 10 kHz when compared with the daily mean frequency within the whole period. However, one patient showed an opposite behaviour regarding the correlations of 28 and 10 kHz atmospherics and the mean numbers of seizures.

Weather as a risk factor for epileptic seizures: A case‐crossover study

“…Despite a weather‐dependent seizure risk being physiologically plausible due to the association of increasing neuronal activity with increasing temperature or decreasing atmospheric pressure, the influence of weather on seizure risk has received only limited attention to date. Two smaller studies performed in the early 1980s and 1990s in a cohort of six patients, found no association between meteorological parameters and seizure risk, or determined a seizure risk associated with atmospheric electromagnetic fields and not with classical meteorological factors . However, due to the small size of the study cohort and methodologic issues, the significance of both studies is clearly limited.…”

“…Two smaller studies performed in the early 1980s and 1990s in a cohort of six patients, found no association between meteorological parameters and seizure risk, 10 or determined a seizure risk associated with atmospheric electromagnetic fields and not with classical meteorological factors. 11 However, due to the small size of the study cohort and methodologic issues, the significance of both studies is clearly limited. Two other studies were performed in a highly selected group of patients, that is, patients with status epilepticus resistant to therapy 12 or hospitalized epileptic patients during tapering of antiepileptic medication, 13 which again limits the significance of the results.…”

Dynamic Emergence of Neuronal Synchrony During Kindling

“…The most commonly used linear measurement of synchrony is cross correlation [77][78][79][80][81][82][83][84][85]. Cross correlation studies the similarity of two waveforms; it has been used to calculate the correlation between local feild potentials [66].…”