Rhythmic rocking stereotypies in frontal lobe seizures: A quantified video study.

Researchers

Journal

Modalities

Models

Abstract

Rhythmic, stereotyped movements occur in some epileptic seizures. We aimed to document time-evolving frequencies of antero-posterior rocking occurring during prefrontal seizures, using a quantitative video analysis.
Six seizures from 3 patients with prefrontal epilepsy yet different sublobar localizations were analyzed using a deep learning-based head-tracking method.
Mean rocking frequency varied between patients and seizures (0.37-1.0Hz). Coefficient of variation of frequency was low (≤12%).
Regularity of body rocking movements suggests a mechanism involving intrinsic oscillatory generators. Since localization of seizure onset varied within prefrontal cortex across patients, altered dynamics converging on a “final common pathway” of seizure propagation involving cortico-subcortical circuits is hypothesized.
Copyright © 2020 Elsevier Masson SAS. All rights reserved.