Polysomnographic Findings in Fragile X Syndrome Children with EEG Abnormalities

Figure 1

Example of interictal epileptiform discharges (IEDs) during sleep: a 7-year-old boy affected by fragile X syndrome presented a well-organized background activity, and diffuse and irregular runs of interictal epileptiform discharges featuring high amplitude generalized spikes and sharp waves with anterior predominance, sometimes intermingled with the physiological spindles of sleep.