A

Morning-predominant myoclonic jerks of the upper limbs cause adolescents with juvenile myoclonic epilepsy to “drop objects,” and episodes are often triggered by stress such as exams; consciousness is preserved and EEG shows generalized spike/polyspike-wave discharges typical of this syndrome [Mahesar 2018, PMID 29736355; Bozić 2011, PMID 21970066].