Making Sense of the Environment/Responding to the World Flashcards
what is conciousness?
awareness of self and environment
what waves are alertness associated with?
beta waves
12-30Hz
what waves are “daydreaming”/relaxed state associated with?
alpha waves
8-13 Hz
what waves are drowsiness associated with?
theta waves
N1 stage of sleep is dominated by
theta waves, hallucinations, hypnic jerks
N2 stage of sleep is dominated by
deeper than N1, precedes N3, see lots of theta waves, sleep spindles, and K complexes
what is a sleep spindle?
burst of brain activity thought to suppress certain perceptions
what is the N3 stage of sleep?
slow wave sleep, mostly composed of delta waves
what is freud’s theory of dreams?
dreams have meaning (monster chasing you,etc)
what is the activation synthesis hypothesis of dreams?
frontal cortex tries to make sense of random impulses from brain stem firing during REM sleep
sleep deprivation can lead to
obesity, depression, mood disorders
sleepwalking mostly occurs during __ stage of sleep
N3
breathing related disorders can take 3 forms:
obstruction related, brain related, hypoventilation
what is hypnosis?
induced altered state of conciousness. more susceptible to power of suggestion
what is meditation?
self induced altered state
increased alpha and theta waves
regular practitioners have greater ability to control attention
what does a depressant do?
suppresses CNS
lowers HR and BP
alcohol, barbiturates, benzos
what does a stimulant do?
stimulates CNS
increase HR and BP
nicotine, caffeine, amphetamines
similar effect to stress
what does a hallucinogen do?
causes altered perception
what is an opiate/opioid?
synthetic derivative of poppy seed, decrease CNS function but also act as analgesic
cannabis/marijuana/weed has characteristics of
stimulants, hallucinogens, and depressants
opiates act on ___ receptors
endorphin
depressants act on ___ receptors
GABA
what is nicotine’s effect on the body?
increase BP/HR, can disrupt sleep and suppress appetite
what is the effect of cocaine?
massive increase in dopamine, serotonin, and norepinephrine. causes crash afterward
what do amphetamines do?
trigger release of dopamine, and block its reuptake
Ecstasy/ Molly/ MDMA
synthetic hallucinogen, also has stimulant properties. increases dopamine and euphoria. increases HR
what neurotransmitter does LSD interfere with?
serotonin
what causes a crash?
when you take a typical drug dose without your body pre-emptively compensating for it
a faster route of entry means…
higher risk of addiction/dependence
dopamine is produced in the_____ region of the brain
ventral tegmental
what is the role of the amygdala?
emotional control.
what is the role of the nucleus accumbens in the reward pathway?
motor function
“let me take another hit of that dank w33d”
what is the role of the prefrontal cortex in the reward pathway?
oooh look at that fat blunt
what is the role of the hippocampus in the reward pathway?
memory
“where did i smoke that dank weed?”
what happens to levels of dopamine and serotonin when the reward pathway is activated?
dopamine goes up, serotonin goes down
what is serotonin involved in?
feelings of satiation
what is tolerance?
brain gets used to drug stimulus, so it requires more of the drug to achieve same effect or just to feel “normal”
what are the telltale signs of a substance use disorder?
using higher dose, failing to meet obligations, withdrawal,
what does methadone do?
activates opiate receptors but much more slowly and dampens the high.
how does cognitive behavior therapy helps addicts?
addresses both cognitive thought processes and helps identify behaviors to prevent relapse
what is motivational interviewing?
working with pt to find intrinsic motivation to change
what is divided attention?
when doing more than one thing your brain quickly switches between things instead of multitasking
what is selective attention?
“flaslight beam”, only focusing on one thing at a time
what is an exogenuous cue?
we dont have to tell ourselves to notice it. like a bright color or loud noise
what is an endogenous cue?
require internal/background knowledge to understand the cue
what is inattentional blindness?
when we fail to notice something in our view because our attention is focused elsewhere
what is change blindness?
failure to notice a change in an environment due to selective attention
what does broadbent’s early selection theory state?
sensory register–>selective filter–>perceptual process–>conscious
problem? if you selectively filter everything then you wouldn’t be able to hear your name in a crowded room.
What does Deutch & Deutch’s Late Selection Theory state?
Sensory register–> perceptual process->selective filter–>conscious
states that you do register and assign meaning to shit but that your selective filter decides what to send to your conscious
problem? too much energy required to assign meaning to everything
what is Treisman’s attenuation theory?
instead of the selective filter we have an attenuator that weakens but doesn’t eliminate something from the unattended ear.
Sensory register–>attenuator–>perceptual process–>conscious
what is priming?
exposure to one stimulus can alter our perception of another or subsequent stimulus
what is the resource model of attention?
states that attention is a limited resource and that we suck ass at multi-tasking
what are the 3 things that affect our ability to multitask?
task similarity, task difficulty, practice(prior experience)
what does the information processing model postulate?
input–>process–>output
what is sensory memory?
like the sensory register. composed of iconic and echoic.
iconic is what you see, lasts a few seconds. echoic is what you hear, lasting 3-4 seconds
what is working memory?
AKA short term memory. consists of what you are thinking of in the exact moment. 7 units of information (+or- 2) available.
what is the visuo-spatial sketchpad?
part of working memory involving visual memories. works with the phonological loop too
what is the phonological loop?
verbal info being processed (think: repeating something to yourself again to remember it)
what does the central executive do?
coordinates the visuo-spatial and phonological loops
what is the episodic buffer?
connection between working and long term memory
what is long term memory?
composed of explicit and implicit memories, theoretically unlimited
what is explicit memory?
memory of facts, places, names, math and other gay shit
what is implicit memory?
remembering stuff like how to ride a bike, how to clench your sphincter to stop the poop log, etc
what is episodic memory?
its a part of explicit memory, specifically referring to birthdays/holidays and shit
riding a bicycle is a form of ____ memory
procedural
what is encoding?
processing info and transferring it into memory
what is rote rehearsal?
saying the same shit again and again, is the least effective encoding technique
what is chunking?
grouping pieces of info together to improve encoding
what is the pegword system?
verbal “anchor” to a word or piece of info.
1 is a gun
2 is a shoe
3 is a tree
what is the method of loci?
useful for encoding things that need to be memorized in order
what is self referencing?
relating new info to yourself to help encoding
what is spacing?
spacing out study sessions instead of cramming
what is retrieval?
trying to bring back a memory from long term memory into working memory
what are the things that can affect retrieval?
priming, context, state(of mind)
what is free recall?
recall without any cue
what is the primacy/recency effect?
also known as serial position effect, remember things at beginning and end of list better