Diagnosis is typically made based on patient history. The physical examination is usually normal. The primary diagnosis for<unk>  is a good knowledge of patient history and the neurologist's familiarity with the<unk>  jerks, which are the hallmark of the syndrome. Additionally, an electroencephalogram (EEG), will indicate a characteristic pattern of waves and spikes associated with the syndrome such as generalized 4–6 Hz polyspike and slow wave discharges. These discharges may be evoked by photic stimulation (blinking lights) and/or hyperventilation. Both a magnetic resonance imaging scan (MRI) and computed tomography scan (CT scan) generally appear normal in<unk>  patients. However a number of quantitative MRI studies have reported focal or regional abnormalities of the subcortical and cortical grey matter, particularly the thalamus and frontal cortex, in<unk>  patients. Positron emission tomography reports in some patients may indicate local deviations in many transmitter systems.
Juvenile myoclonic epilepsy
Progressive myoclonus epilepsy
Benign infantile epilepsy
Childhood absence epilepsy
Benign familial infantile epilepsy
Musicogenic epilepsy
Northern epilepsy syndrome
Vertiginous epilepsy