Induction of self awareness in dreams through frontal low current stimulation of gamma activity

Recent findings link frontotemporal gamma electroencephalographic (EEG) activity to conscious awareness in dreams, but a causal relationship has not yet been established. We found that current stimulation in the lower gamma band during REM sleep influences ongoing brain activity and induces self-reflective awareness in dreams. Other stimulation frequencies were not effective, suggesting that higher order consciousness is indeed related to synchronous oscillations around 25 and 40 Hz.

Rapid eye movement (REM) sleep dreams are primary states of consciousness in that they are concerned with the immediate present, with only uncontrolled access to the past or the anticipated future. After awakening, humans—and supposedly only humans—enter a secondary mode of consciousness that introduces higher-order cognitive functions such as self-reflective awareness, abstract thinking, volition and metacognition. A state of sleep in which primary and secondary states of consciousness coexist is lucid dreaming, a phenomenon that is most likely unique to humans…

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