[tips] question about REM sleep disorder

Dear Tips Colleagues, I should know this, but I'm blanking on it--how does REM sleep without atonia differ from sleepwalking or does it? Thanks, Carol Carol L. DeVolder, Ph.D. Professor of Psychology Chair, Department of Psychology St. Ambrose University 518 West Locust Street Davenport, Iow

[tips] question about REM sleep disorder

DeVolder Carol L asked "I should know this, but I'm blanking on it--how does REM sleep without atonia differ from sleepwalking or does it?" The obvious answer is that slepwalking occurs in stages 3 & 4. Also, I may be displaying my ignorance here but doesn't REM sleep disorder always lack atonia