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Term

Simple Definition

Memory Hook (Same Starting Letter / Phrase)

Sleep

Natural loss of consciousness

Sleep = Shut down

Circadian Rhythm

24-hour biological clock

Circadian = Clock

REM Sleep

Dream sleep with active brain

REM = Rapid, Remember dreams

Paradoxical Sleep

Body asleep, brain awake

Paradox = Puzzle state

Alpha Waves

Relaxed awake brain waves

Alpha = Almost Asleep

Delta Waves

Deep sleep waves

Delta = Deep

NREM Sleep

All sleep except REM

NREM = No dreams

Hypnagogic Sensations

Falling/jerking before sleep

Hypnagogic = Half-asleep Hallucinations

Hallucinations

False sensory experience

Hallucination = Hears/Sees what isn’t Here

SCN (Suprachiasmatic Nucleus)

Controls circadian rhythm

SCN = Sleep Clock Neurons

Term

Simple Definition

Memory Hook (Same Starting Letter / Phrase)

Melatonin

Sleep hormone

Melatonin = Midnight Molecule

Insomnia

impossible to fall or stay asleep

Insomnia = Impossible to Sleep

Narcolepsy

Sudden sleep attacks

Narcolepsy = Naps (Not Normal)

Sleep Apnea

Breathing stops while sleeping

Apnea = Airway Absent

Night Terrors

Extreme fear during NREM-3

Terrors = Terrifying but not Remembered

Manifest Content

Dream storyline you remember

Manifest = Main Memory

Latent Content

Hidden meaning of the dream

Latent = Locked meaning

REM Rebound

Extra REM after deprivation

Rebound = Recovering REM

Psychoactive Drug

Changes mood & perception

Psychoactive = Psychology Altering

Tolerance

Need more to get same effect

Tolerance = Taking more

Term

Simple Definition

Memory Hook (Same Starting Letter / Phrase)

Withdrawal

Discomfort after stopping a drug

Withdrawal = Worst When Without

Depressants

Slow down body & brain

Depressants = Decrease activity

Alcohol Use Disorder

Problematic, continued drinking

Alcohol Abuse = Addiction + Atrophy (brain)

Barbiturates

Depress CNS, reduce anxiety

Barbiturates = Brain Bummers

Opiates

Relieve pain, very addictive

Opiates = Pain Off, Problems On

Stimulants

Speed up body & brain

Stimulants = Speed

Nicotine

Addictive stimulant from tobacco

Nicotine = Need Next

Cocaine

Powerful stimulant, quick high & crash

Cocaine = Crash

Amphetamines

Boost energy & mood

Amphetamines = Amp Up

Methamphetamine

Very addictive stimulant, reduces dopamine

Meth = Melts Dopamine

Term

Simple Definition

Memory Hook (Same Starting Letter / Phrase)

Ecstasy (MDMA)

Stimulant + mild hallucinogen; increases social connection

Ecstasy = Empathy Energy

Hallucinogens

Distort perceptions & evoke false sensory images

Hallucinogens = Hazy Hallucinations

LSD

Powerful hallucinogen causing intense sensory distortions

LSD = Long Strange Dream

THC

Active chemical in marijuana causing mild hallucinations

THC = Tokes Heighten Consciousness

Near-Death Experience

Altered state reported after being close to dying

Near-Death = Next to the Door

Dream

Sequence of images, emotions, thoughts during sleep

Dream = Daily Random Events As Movie

NREM-3 (Deep Sleep)

Deepest sleep, delta waves

NREM-3 = Nighttime Knockout

Brain Waves

Electrical patterns of neural activity

Brain Waves = Broadcast

Pineal Gland

Releases melatonin to regulate sleep

Pineal = Pillow Hormone Producer

Hypothalamus

Brain region controlling bodily rhythms (includes SCN)

Hypothalamus = Homeostasis Headquarters