Have you ever felt that you
can control your dreams? I recall
instances in which I have felt that I could do just that: direct the trajectory
of my dreams. Weird. Ursula Voss’s article on lucid dreaming
begins by explaining the phenomenon of REM (rapid eye movement sleep) as it
relates to the immediate present, therefore earning its classification as a
primary state of consciousness. After arousal,
humans, and perhaps only us, enter a secondary state of consciousness
characterized by higher-order cognitive functions like self-reflective
awareness, abstract thinking, volition, and metacognition (Voss). I will define lucid dreaming then as a mental
state in which a transition from primary to secondary consciousness takes
place, allowing the sleeper to realize that he/ she is in fact dreaming and
perhaps to even control the direction of the given dream upon this realization.
Changes in EEG, EOG, and EMG
activity noted in Voss’s study show REM sleep modification such that subjects
appeared to enter a different state of consciousness that was not wakefulness
but more “controlled” than REM sleep state.
Namely, changes in gamma band amplitude and frequency are both noted in
EEG activity categorized as indicative of lucid dreaming. Gamma bands are associated with high
cognitive functioning (they range from 40 to 100 Hz). A logical connection then is drawn between
lucid dreaming and gamma bands.
Subjective lucid dreaming report measures in the study correlated well
with noted changes in gamma (40-Hz band) activity as well – lowered gamma band
activity to be precise.
Voss suggests that the study
provides the first causal evidence of demonstrated altered consciousness
awareness resulting from induced gamma band activity. Lowered gamma-band activity appeared to be
the necessary present condition to allow for a transition into secondary
consciousness in dreaming, i.e. lucid dreaming.
What does this information mean for you, me, or our peers?
I say it means that lucid
dreaming is real! Again, I can attest to this statement as
truth because I have experienced instances where I have woken up briefly because
something interrupted my sleep, turned over, and gone back to sleep in the same
dream. I cannot explain the phenomenon
as I do not have these dreams often…nor can I provide an adequate recent
example. However, on the rare occasion
that I experience lucid dreaming, I am amazed each time at the beauty and
complexity of my mind to navigate altered consciousness. I am spurred into intellectual curiosity –
and usually end up wanting to watch the movie Inception to explore my thoughts
on dreaming and consciousness more…
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