ACNS 2012 Terminology

Rhythmic or Periodic Patterns > main term #2 > Rhythmic Delta Activity (RDA)

Rhythmic Delta Activity (RDA) Rhythmic = repetition of a waveform with relatively uniform morphology and duration, and without an interval between consecutive waveforms. RDA = rhythmic activity =< 4 Hz. The duration of one cycle (i.e., the period) of the rhythmic pattern should vary by <50% from the duration of the subsequent cycle for the majority (>50%) of cycle pairs to qualify as rhythmic.