Sleep and dreams

Consciousness

Our subjective awareness of ourselves and our environment

Non consciousness

mental processes, like digestion or driving a car, that operate outside conscious awareness and can't be easily accessed through introspection

Preconscious

Outside of awareness but can be brought up. The name of your childhood friend; it's not in your immediate awareness, but you can readily recall it if prompted.

Circadian rhythm

Our body’s biological clock, regular bodily rhytms that occur on a 24-hour cycle

Jet lag

tiredness due to the change of time zone

Seasonal affective disorder

a type of depression that occurs during certain times of the year, typically in the fall and winter months (bc you don’t get enough sunlight)

Insomnia

Problems with falling or staying asleep

REM sleep behavior disorder

When REM does not occur; instead, twitching, talking, or even kicking or punching may occur, often acting out one’s dream

Obstructive sleep apnea

Difficult breathing during sleep and repeated momentary awakenings

Narcolepsy

uncontrollable sleep attacks. The affected person mayb lapse directly into REM sleep, often at inopportune times

Sleepwalking

a sleep disorder where a person engages in complex behaviors while still asleep

Biological theory

an explanation for behavior, social organization, or biological phenomena that emphasizes the role of biological factors like genetics, evolution, and physiology. Ex. natural selection

Psychoanalytic theory

Childhood conflicts significantly influence our thoughts, feelings, and actions.

Information processing theory

Dreams act to sort out and understand the memories that you experience that day

Conscious

Being awake and alert for your surroundings

Unconscious

Mental activities are kept out of the conscious mind. Either for protection or growth

Restorative sleep theory

Sleep helps us recuperate from the daily wear and tear on our body with sleep cycle

Evolutionary theory of sleep

sleep is a behavior that evolved to enhance survival and reproductive success through natural selection, primarily by improving energy conservation and protection from predators during vulnerable periods.

Memory consolidation sleep theory

During sleep, the brain replays and processes recently learned information, integrating it with existing knowledge networks. Moving from short-term to long-term

Sleep stage 1

• This is experienced as falling to sleep and is a transition stage between wake and sleep.

• Sometimes called “twilight sleep” Theta waves

sleep stage 2

• SLEEP SPINDLES and K COMPLEXES are present in Stage 2. Theta waves

sleep stage 3

Deep sleep contains delta waves.

REM sleep

Most dreams occur here. Breathing, heart rate and brain wave activity quicken. 

Vivid Dreams can occur

REM rebound

• The tendency for REM sleep to increase following REM sleep deprivation.

Sleep deprivation

Not getting enough sleep, which impacts cognitive function, mood, performance, and overall health