Psych Mod 16-18 Restudy

activation-synthesis theory

dreams are brains attempt to synthesize random neural activity (REM sleep triggers neural activity that evokes random visual memories which our sleeping brain weaves into stories)

Wave name and characteristics of: awake but relaxed

alpha wave, slow

Wave name and characteristics of: NREM-1

no wave name, irregular, non-rapid eye movement, hallucinations

Wave name and characteristics of: NREM-2

not wave name, sleep spindles, deep relaxing

Wave name and characteristics of: NREM-3

delta, slow and large, hard to wake

Wave name and characteristics of: REM

no wave name, rapid and saw-toothed, raised heart rate, rapid and irregular breathing, and eye movements

What sleep stage have vivid sensory images?

NREM-1

How are dreams explained as a physiological function?

provide sleeping brain with periodic stimulation (help develop and preserve pathways)

What is the cognitive development function of dreaming?

dreams content reflects dreamers level of cognitive development

The 5 reasons that we need sleep

• protection

• recuperation

• restore and rebuild day’s memories

• creative thinking

• growth

Latent content

according to Freud, the underlying meaning of a dream (the unconscious drives and wishes)

Manifest content

according to Freud, the symbolic, remembered story line of a dream (apparent and remembered story line)

cognitive development

dream content reflects dreamer’s level of cognitive development (their knowledge and understanding)

disinhibitor

slow brain activity that controls judgement and inhibitors

Examples of Depressants

alcohol, barbiturates, opiates (heroine)

Examples of Stimulants

caffeine, meth, cocaine, nicotine, and Ecstacy

Examples of Hallucinogens

LSD and THC(marijuana)