Sleep
February 1, 2002
Tomoka Takeuchi, Kazuhiko Fukuda, Yuka Sasaki et al.
To further investigate mechanisms of isolated sleep paralysis (ISP) in normal individuals, we experimentally elicited ISPs by facilitating sleep onset REM periods (SOREMP), a prerequisite of ISPs, and examined behavioral and psychological measurements relating to ISP appearances. The multi-phasic sleep/wake schedule (MPS) began at approximately midnight and ended when net sleep reached 7.5...
Journal of Sleep Research
March 4, 2001
Tomoka Takeuchi, Akio Miyasita, Maki Inugami et al.
The hypothesis that there is a strict relationship between dreams and a specific rapid eye movement (REM) sleep mechanism is controversial. Many researchers have recently denied this relationship, yet none of their studies have simultaneously controlled both sleep length and depth prior to non‐REM (NREM) and REM sleep awakenings, due to the natural rigid order of the NREM–REM sleep cycle. The...
Psychiatry and Clinical Neurosciences
June 1, 2000
Kazuhiko Fukuda, Robert D. Ogilvie, Tomoka Takeuchi
Abstract There were no differences between Canada and Japan in the prevalence and symptoms of sleep paralysis (SP), but many more Canadians considered SP to be a dream. The difference was considered to be derived from the fact that there is a common expression for SP in Japan but there is not one in Canada. Then, we investigated why there are individuals who consider SP to be a dream and others...
Perceptual and Motor Skills
June 1, 1994
Tomoka Takeuchi, Akio Miyasita, Maki Inugami et al.
16 citations
During an experiment on nocturnal sleep interruption, we observed a unique case of hallucination without sleep paralysis during the sleep-onset REM period in a normal individual. We documented the polysomnogram recorded during this hallucination. The polysomnogram showed a mixed pattern of Stages REM and W, with muscle-tone inhibition, rapid eye movements (REMs), slow eye movements (SEMs), and...
Sleep
June 1, 1992
T Takeuchi, A Miyasita, Y Sasaki et al.
We elicited isolated sleep paralysis (ISP) from normal subjects by a nocturnal sleep interruption schedule. On four experimental nights, 16 subjects had their sleep interrupted for 60 minutes by forced awakening at the time when 40 minutes of nonrapid eye movement (NREM) sleep had elapsed from the termination of rapid eye movement (REM) sleep in the first or third sleep cycle. This schedule...