There are numerous reports of fetal seizure activity.
Fetal seizure activity was reported by one mother at 28 weeks
of gestation as rapid, repetitive fetal movements. Ultrasound of her fetus at 30 weeks of gestation revealed tonic clonic movements of the fetal trunk and extremities
. Abrams and coworkers documented fetal seizures with rapid,
repetitive limb movements noted on several occasions and lasting 30-60 seconds
in a 32 week old fetus[ 2].
In a review on the subject the most common cause of fetal seizures
appeared to be congenital anomalies (seven of 13), mainly of the central nervous
system (six of seven)