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. Author manuscript; available in PMC: 2022 May 17.
Published in final edited form as: Brain Res. 1992 Jan 31;571(1):50–63. doi: 10.1016/0006-8993(92)90508-7

TABLE Va.

Pearson product moment correlations between percent tissue damage and REM sleep paramaters in 2 groups, PPT/PB lesions (n = 6) and subceruleus lesions (n = 6)

REM sleep measure Lesion size
PPT lesion group
 Subceruleus lesion group
PPT LDT Total lesion LCa pLCa sub-LC corn plex Total lesion
% active REM −0.81* −0.43 −0.50 +0.95* +0.93* +0.01 +0.42
Number of REM episodes −0.20 −0.08 +0.12 −0.04 −0.18 +0.92* +0.70
REM epoch duration −0.07 +0.50 −0.24 −0.60 −0.80* −0.70 −0.80*
% REM (time/12 h) −0.56 +0.09 +0.70 −0.93* −0.79* +0.10 −0.20
III

Findings are provided for specific pontine lesion targets as well as for total lesion size from APO through P4, as depicted in Table III. Per capita PPT damage was significantly correlated with reduced phasic events (active REM sleep). Damage to subceruleus and sometimes the reticular core (mostly FTL) was significantly correlated with increased active REM sleep and the number of REM sleep episodes (positive correlation) and reduced REM sleep epoch durations and percentages (negative correlation).

*

= correlations 0.73 are statistically significant at P < 0.05.