The present study evaluated the effect of slow wave sleep (SWS) deprivation on plasma levels of catecholamines in healthy male volunteers. Eleven volunteers spent 4 nights in the sleep laboratory (2 nights of habituation and 2 further nights); during the latter, 1 night served as control, and in the other, SWS deprivation was performed. Blood was drawn at 30-min intervals. SWS was reduced by 86%; no sleep stage 4 was observed during the SWS-deprived nights. SWS reduction was found not to correlate with catecholamine levels. However, epinephrine levels were found to be sensitive to sleep fragmentation. The time interval between arousals in the SWS-deprived night as well as the difference in sleep efficiency were related to increases in epinephrine levels (p < 0.01 and p < 0.025, respectively). These results support the view that continuity rather than the duration of SWS is important for the recuperative value of sleep.
Nous souhaitons présenter une expérience clinique de psychodrame avec des petits groupes. Nous décrirons notre dispositif et ses spécificités liées à la population rencontrée au Service de santé mentale à l’université libre de Bruxelles dans un quartier populaire. Nous parlerons des différents temps de la valse psychodramatique pour arriver aux derniers rythmes qui ponctuent la fin d’une séance, l’interruption des congés, les départs et nous nous attarderons davantage sur les notes ultimes de la fin du groupe. Nous présenterons des moments cliniques qui évoqueront en quoi « la fin » appartient au groupe et à ses souvenirs. Nous expliciterons comment les participants qui ont connu maltraitance, traumatismes à répétition, deuils compliqués et liens pathologiques, vivent alors processus d’individuation et de séparation sans désintégration mais en s’appropriant une interprétation personnelle des jeux et du vécu groupal.
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