@entity35 were sleep deprived by the platform method to look for differential effects on light and deep slow wave sleep depending on platform size. Diameters of large and small platforms were 15 cm and 5.1 cm respectively. Sleep was recorded during a baseline light period (09.00-19.00 h), continuously during 48 h of @entity1949 and during the first lights on recovery period (09.00-19.00 h). In both platform conditions REM sleep was virtually abolished during the first light period (hours 0-10 of @entity1949 ), while NREM sleep was reduced to approximately half of control values. During the second light period (hours 22-34 of @entity1949 ) REM sleep recovered somewhat in the large platform group. Light slow wave sleep ( @entity1807 -1) was comparable to baseline while deep slow wave sleep ( @entity1807 -2) was still significantly reduced. In the small platform group both @entity1949 was considerably reduced on day 2. Over the whole deprivation period there was an effect of platform size on @entity1807 -1 (higher in the small platform group), and on @entity1949 (lower in the small platform group). During the 9 h light-time recovery sleep there was an REM sleep rebound in both groups. @entity1807 -1 was reduced in both groups while @entity1807 -2 was not significantly increased. The ratio @entity1807 -2/ @entity1807 -1 was, however, significantly increased only in the small platform group recovery sleep. The results suggest that platform @entity1949 deprives the animals of deep slow wave sleep in addition to REM sleep. This has implications for conclusions on REM sleep function based upon @entity1949 .

Platform XXXX affects deep slow wave sleep in addition to REM sleep.

@entity35 :: ('10116', 'Species') :: ['Rats'] @entity1807 :: ('MESH:C537502', 'Disease') :: ['SWS'] @entity1949 :: ('MESH:D012892', 'Disease') :: ['sleep deprivation', 'SWS-2 and REM sleep', 'REM sleep deprivation']
@entity1949 :: (MESH:D012892,Disease) :: ['sleep deprivation']
