Synchronous myoclonias during quiet sleep

Synchronous myoclonias in the upper limbs (right and left biceps) during quiet sleep. EEG (FP2-C4; C4-T4; T4-O2; FP1-C3; C3-T3; T3-O1); EOG: electro-oculogram; PNG: pneumogram; R: right; L: left. (Contributed by Dr. Federica Provini.)