C6 Consciousness Flashcards
Consciousness
a person’s moment to moment subjective , personal experience
Qualia
qualitative experience of your consciousness
environment, perspective, awareness
Attentional blindness
a failure to notice something obvious changing when we focus on something else
Change blindness
a failure to notice large changes in one’s environment
now vs while ago
Automatic processing
when we know a task well, do it without much attention
allow less focus on consciousness
Controlled processing
more complex or new tasks
slower than automatic processing
Behavioural study
testing for consciousness
Rouge test
objective measures
sleeping
regulated by Hypothalamus
circadian rhythms
Suprachiasmatic nucleus (SCN)
trigar by dark
signals the pineal gland to release
melatonin
regulate circadian rhythms
active - reduce
inactive - increase
Stage 1
light sleep (1-10 mins)
Beta waves (awake/alert)
Alpha waves (relaxed/drowsy)
Beta/Alpha waves from wakefulness transition to Theta waves
Stage 2
deeper sleep (10-25mins)
body is slowing down, heart rate
Sleep Spindles: 1-2 seconds rapid brain activity (brain try to keep us awake)
Stage 3 4
after 10-30 min
appearance of Delta waves
slow wave sleep
Stage 5
REM sleep
occupies 20-25% of night sleep
cycles of REM sleep last between 20min to 1hr
REM sleep paralysis
more dreaming
sleep cycle
body has to go through every individual stage to complete one cycle
Restoration Theory
allow the body and brain rest and repair
CIrcadian Rhythm theory
physical, mental, behavioural changes that follow 24-hour cycle
survival
Learning theory
learning works better with sleep
Neros connecting work better with sleep
Freud’s Dream Protection Theory
manifast (actual dream)
Latent Content (dream symbolizes), protect sleep from disruption
Activation-Synthesis Theory
dreams are random, mean nothing
activation: random neural activity in the brain
Synthesis: cerebral cortex interprets activity
Insomnia
difficulty in falling asleep, staying asleep
stress
REM Sleep Behaviour Disorder (RBD)
REM sleep paralysis is disabled (brain is really active)
Sleepwalking
Somnambulism
more common in children
Out of body experience
a sense of consciousness leaving the body
Near death experience
nearly died or thought they were going to die
Meditation
mental procedure, we focus on some external or internal object
lower blood pressure, release stress
Mindfulness
let thoughts slow freely
don’t really react to those thoughts
Hypnosis
people response to suggestions
experiences changes in memory
involuntary action
Stimulants
stimulate, heighten activity in the body
increase: heart rate, blood pressure
decrease: sleep
1. interfere with reuptake of dopamine
2. increase release of dopamine
Cocaine
alert, energy, sociable, feeling amazing
paranoia, psychotic, violence
blocks reuptake of dopamine
Amphetamines
reduce fatigue via increase dopamine
side effects: insomnia, anxiety, addictive
Depressants
decrease behavioural and mental activity
Alcohol
small doses: relaxation, elevate mood
large doses: slowing thinking, coordinations
Opiates (narcotics)
relieve pain and induce sleep
stimulate receptors to relieve pain
Hallucinationsogens (psychedelics)
alters our cognitions mood, perception
interferes with serotonin, dopamine
Marijuana
stimulant, depressant, hallucinogen
relaxed mental state, uplifted mood, distortions in perception of cognition
Hippocampus ( memory)
