?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+primary+function+of+REM+sleep&rft.creator=Bernhard%2C+Mr.+Andrew+E.&rft.subject=Brain+Imaging&rft.subject=Neuropsychology&rft.subject=Neuropsychiatry&rft.subject=Neurology&rft.subject=Neurophysiology&rft.description=In+this+paper%2C+the+physiological+features+associated+with+the+different+stages+of+REM+sleep+and+with+what+information+processing+researchers+have+called+%E2%80%9Ceffort%E2%80%9D+and+%E2%80%9Carousal%E2%80%9D+are+compared.+It+is+suggested+that+tonic+REM+sleep+and+effort+involve+an+increase+in+the+metabolism+of+cerebral+glycogen%2C+and+phasic+REM+sleep+and+arousal+involve+the+transfer+of+glucose+from+the+body+to+the+brain.+Both+stages+of+REM+sleep+seem+to+elevate+cerebral+glucose+levels+and+likely+result+in+increased+ATP+generation+in+some+part(s)+of+the+brain.+It+is+noted+that+the+functioning+of+the+hippocampus+depends+heavily+on+ATP%2C+and+that+this+part+of+the+brain+becomes+especially+active+during+REM+sleep.+From+this%2C+although+many+details+remain+to+be+clarified%2C+it+seems+clear+that+the+primary+function+of+REM+sleep+is+to+re-energize+the+brain.&rft.date=2006-09&rft.type=Preprint&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F5125%2F1%2FPrimary_Function_of_REM_sleep_%2528preliminary_draft%2529.pdf&rft.identifier=++Bernhard%2C+Mr.+Andrew+E.++(2006)+The+primary+function+of+REM+sleep.++%5BPreprint%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F5125%2F