Consciousness
Able to perceive one’s thoughts, feelings, sensations, and surroundings
Jet Lag
A temporary disruption of the body's circadian rhythm due to rapid travel across multiple time zones
Shift Work
Employment schedules that require working outside of typical daytime hours, disrupting the circadian rythm
NREM Stage 1
Drifting in and out of sleep
Brain waves slow down muscles relax, and individuals may experience sudden muscle contractions known as hypnic jerks
NREM Stage 2
Light sleep
Brain waves further slow down and sleep spindles (short bursts of brain activity) and k-complexes (sudden, sharp waveforms) appear
NREM Stage 3
The sleepest stage of NREM sleep
Restoration of resources body and brain replenish energy- promoting physical and mental well-being
REM (Rapid Eyelid Movement) Sleep
Rapid eye movement, vivid dreams, and muscle paralysis
Increased brain activity- dreaming- plays a role in memory consolidation and emotional processing
REM Rebound
The phenomenon where the body increases the time spent in REM sleep after a period of REM deprivation
Activation-Synthesis (Dreams)
A theory that dreams result from random neural activity during REM sleep, which is then interpreted and synthesized into a narrative or story
Consolidation Theory (Dreams)
A theory that dreams play a role in the memory consol consolidation and processing of memories. The brain organizes and integrates information acquired throughout the day- memory storage/