Voss’ early studies found that participants’ reports of lucid dreams tended to occur during REM sleep. At the beginning of a sleep cycle, the brain slows from high frequency gamma and beta waves associated with waking, processing and alertness. The patterns of brain activity progress through slowing alpha waves to deep sleep’s delta and theta frequencies. Paradoxically, the sleep cycle apexes in REM, and the brainwaves speed up. Dreams normally occur during REM sleep, when many regions of the brain appear to be functioning as if it were awake. When subjects reported a lucid dream, there was distinct gamma activity, the highest frequency range of brainwave, in the frontotemporal region. The frontotemporal region is associated with executive functioning, decision making, processing complex stimuli, and self-awareness. Voss and her team theorized that lucid dreams occur when the frontotemporal region of the brain is active at a gamma level during REM sleep.
Posted on: Tue, 15 Jul 2014 17:27:37 +0000
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