STUDY OBJECTIVES: The ultradian NREM-REM sleep cycle and the circadian modulation of REM sleep sum to generate dreaming. Here we investigated age-related changes in dream recall, number of dreams, and emotional domain characteristics of dreaming during both NREM and REM sleep. DESIGN: Analysis of dream recall and sleep EEG (NREM/REM sleep) during a 40-h multiple nap protocol (150 min of wakefulness and 75 min of sleep) under constant routine conditions. SETTING: Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland. PARTICIPANTS: Seventeen young (20-31 years) and 15 older (57-74 years) healthy volunteers INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Dream recall and number of dreams varied significantly across the circadian cycle and between age groups, with older subjects exhibiting fewer dreams (P < 0.05), particularly after naps scheduled during the biological day, closely associated with the circadian rhythm of REM sleep. No significant age differences were observed for the emotional domain of dream content. CONCLUSIONS: Since aging was associated with attenuated amplitude in the circadian modulation of REM sleep, our data suggest that the age-related decrease in dream recall can result from an attenuated circadian modulation of REM sleep.
STUDY OBJECTIVES: The ultradian NREM-REM sleep cycle and the circadian modulation of REM sleep sum to generate dreaming. Here we investigated age-related changes in dream recall, number of dreams, and emotional domain characteristics of dreaming during both NREM and REM sleep. DESIGN: Analysis of dream recall and sleep EEG (NREM/REM sleep) during a 40-h multiple nap protocol (150 min of wakefulness and 75 min of sleep) under constant routine conditions. SETTING: Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland. PARTICIPANTS: Seventeen young (20-31 years) and 15 older (57-74 years) healthy volunteers INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Dream recall and number of dreams varied significantly across the circadian cycle and between age groups, with older subjects exhibiting fewer dreams (P < 0.05), particularly after naps scheduled during the biological day, closely associated with the circadian rhythm of REM sleep. No significant age differences were observed for the emotional domain of dream content. CONCLUSIONS: Since aging was associated with attenuated amplitude in the circadian modulation of REM sleep, our data suggest that the age-related decrease in dream recall can result from an attenuated circadian modulation of REM sleep.
Authors: T Hori; Y Sugita; E Koga; S Shirakawa; K Inoue; S Uchida; H Kuwahara; M Kousaka; T Kobayashi; Y Tsuji; M Terashima; K Fukuda; N Fukuda Journal: Psychiatry Clin Neurosci Date: 2001-06 Impact factor: 5.188
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Authors: Mark R Smith; John S Antrobus; Evelyn Gordon; Matthew A Tucker; Yasutaka Hirota; Erin J Wamsley; Lars Ross; Tieu Doan; Annie Chaklader; Rebecca N Emery Journal: Conscious Cogn Date: 2004-09
Authors: Serena Scarpelli; Chiara Bartolacci; Aurora D'Atri; Maurizio Gorgoni; Luigi De Gennaro Journal: Int J Environ Res Public Health Date: 2019-09-29 Impact factor: 3.390
Authors: Brigitte Holzinger; Franziska Nierwetberg; Frances Chung; Courtney J Bolstad; Bjørn Bjorvatn; Ngan Yin Chan; Yves Dauvilliers; Colin A Espie; Fang Han; Yuichi Inoue; Damien Leger; Tainá Macêdo; Kentaro Matsui; Ilona Merikanto; Charles M Morin; Sérgio A Mota-Rolim; Markku Partinen; Giuseppe Plazzi; Thomas Penzel; Mariusz Sieminski; Yun Kwok Wing; Serena Scarpelli; Michael R Nadorff; Luigi De Gennaro Journal: Nat Sci Sleep Date: 2022-08-26