Written by: Irfan Sheikh Published: 03 August 2024 Awake state: Posterior dominant rhythm (PDR) The posterior dominant rhythm (PDR) is a well-formed, quite symmetric, sinusoidal/rhythmic waveform best observed in the posterior head regions, namely in the occipital channels. The PDR is b est seen during wakefulness when eyes are closed/upon eye closure during relaxation or relative mental inactivity, and is attenuated by eye opening. Please note that the PDR frequency normally progresses as patients age,

Written by: Irfan Sheikh Published: 03 August 2024 Awake state: Posterior dominant rhythm (PDR) The posterior dominant rhythm (PDR) is a well-formed, quite symmetric, sinusoidal/rhythmic waveform best observed in the posterior head regions, namely in the occipital channels. The PDR is b est seen during wakefulness when eyes are closed/upon eye closure during relaxation or relative mental inactivity, and is attenuated by eye opening. Please note that the PDR frequency normally progresses as patients age,