Related Experiment Video
Updated: Apr 19, 2026

Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale
Published on: July 8, 2025
Generalized myoclonus: a rare manifestation of stroke
Violiza Inoa1, Louise D McCullough2
1Department of Neurology. Beth Israel Deaconess Medical Center, Boston, MA, USA ; Harvard Medical School, Boston, MA, USA.
Abstract:
Movement disorders have been reported as rare complications of stroke. The basal ganglia have been implicated in the pathophysiology of most post-stroke dyskinesias. We outline different types of post-stroke myoclonus and their possible pathophysiology. A middle-aged man developed generalized myoclonus after an ischemic stroke in the superior midbrain and subthalamic nuclei. Spontaneous resolution was seen by 72 hours. A lesion to the subthalamic nuclei disrupted the normal thalamic inhibition, which likely led to the involuntary movements seen in our patient. In this case, myoclonus was generalized, which, to the best of our knowledge, has not been reported in the literature as a direct consequence of focal stroke.
Related Concept Videos
Seizures ll: Types
Ischemic Stroke l: Introduction
Ischemic Stroke ll: Pathophysiology
Seizures: Classification
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
Hemorrhagic Stroke ll: Pathophysiology
Alterations in Muscle Tone lll

