| Namespace | MPheno.ontology | Obsolete | false |
| description | seizures induced by electrical stimulation of the brainstem; manifesting as a tonic-clonic flexion/extension sequence, starting in tonic extension of the forelimbs and terminating in a full tonic hindlimb extension, which is defined when the angle of the hindlimbs to the torso exceeds 90 degrees (although it is usually 180 degrees) |