The Sleep level of Conciousness
by Patrick Pamos
Bats are nocturnal and have attributes that would benefit them more at night rather than being active by day.
Birds all have cycles that benefit them being alert during the day.
We as humans vary, and have cycles that are not necessarily controlled by the sun. Alertness can be regulated differently from person to person.
These brainwaves patterns are associated with concentration, arousal, alertness, cognition as well as higher levels of anxiety, and fight or flight.
These brainwave patterns are associated with relaxation daydreaming and conscious meditation.
this stage of sleep includes different levels of brain activity depending on what stage of sleep the unconscious mind is.
Stages of Sleep
n rem 1 is considered any sleep without rapid eye movement when alpha waves move even slower into theta waves
n rem 2 is categorized as true sleep and defined by the occasional occurrence of sleep spindles that last a second or two, and K complexes , single bursts of high voltage spikes of brain activity. breathing becomes rhythmical and slight muscle twitches may occur.
Nrem 3 & 4 are both defined by the amount of delta brain wave activity also referred to slow wave sleep or SWS. Heart rate breathing and blood pressures all drop to their lowest levels. this is when sleepwalking or bed wetting occurs because the sleeper is entirely oblivious to the world.
Hockenbury & Hockenbury 5th edition psychology pages 138-159
article : Alpha Brain Waves Boost Ceativity and Reduce Depression by Christopher Bergland/https://www.psychologytoday.com/blog/the-athletes-way/201504/alpha-brain-waves-boost-creativity-and-reduce-depression