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Nature Medicine 6, 606 (2000)
doi:10.1038/76135

Peripheral vasoconstriction during REM sleep detected by a new plethysmographic method

Peretz Lavie1, Robert P. Schnall2, Jacob Sheffy2 & Arie Shlitner1

  1. Sleep Laboratory, B. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
  2. Itamar Medical Ltd., Caesarea, Israel
    e-mail: plavie@tx.technion.ac.il

Rapid-eye-movement (REM) sleep is associated with more sympathetic activation than is NONREM sleep1, 2. So far, there are no data regarding vascular tone during REM and NONREM sleep in humans.