N1
Theta/light sleep
N2
Sleep spindles/k complex. Mostly unaware. Silencing brain activity
N3
Delta. Slow wave sleep. Deepest. Growth hormone released, immune cycle
When you first fall asleep, you spend more time in
N3
Late in sleep, you spend more time in X and X almost vanishes
Rem, N3
Most important stage of sleep
N3
Lack of sleep causes
imparied cognitive funxn, depression, rapid mental/physical deterioration, microsleeps, mood swings,
Is sleep deprivation as bad as drinking?
Yes
Less rem sleep leads to X
Rebound- higher amounts of rem sleep
Why do we sleep?
Growth/repair of the body, adaptive function, formation of memories and learning
Do we have a consensus on why we dream?
No
Psychoanalytic theory for why we dream?
Wish fulfillment with no consequences.
Manifest content of dreams for psychoanalytic theory
Literal content
Latent content of dreams for psychoanalytic theory
Hidden meaning
Information processing function
Helps sort out events, but we dream about stuff that happened a long time ago and things we haven’t done
Physiological funxn of dreams
Regular brain stimulation from REM sleep preserves neural pathways
REM sleep theory-
dreams triggers neural that brings up memories because of random stimulation. Brain tries to make sense of these through a narrative
Cognitive development theory
Content of dreams reflects level of cognitive development. Lets brain test cognitive functions and simulate our lives, but no adaptive purpose
What effects does alcohol have?
Memory disruption, reduced self awareness, expectancy effects
e barbiturate drugs, which are
tranquilizers, depress nervous system activity. Barbiturates such as Nembutal, Seconal, and Amytal are sometimes prescribed to induce sleep or reduce anxiety. In larger doses, they can impair memory and judgment
. Opiates include
heroin, methadone, narcotics
Risk factors for substance abuse
Genetics, (Esp with twins and even with adoption), stress, life changes, disorders, peer pressure, culture
