"Alexis" <I at should.leave> wrote in message news:<Xydg8.2814$st.900800547 at newssvr12.news.prodigy.com>...
> Was hoping someone could tell me how to differentiate (clinically) myoclonic
> and clonic seizures.
Myoclonic involves brief episodes of muscle jerks.
Clonic is sustained repetitive jerking.
Tonic is sustained stiffening due to muscle contraction.
Tonic/clonic is "grand mal" seizure with stiffening followed by
sustained jerking until the seizure stops.