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Consciousness - Coggle Diagram
Consciousness
Psychoactive drugs
depressants
alcohol, marijuana
stimulants
nicotine, cocaine
Hallucinogens
LSD, mushrooms
Multiple properties
ecstasy (stimulants + hallucinogens)
Affect physiological & psychological aspects
Stages of consciousness - sleep
EEG
pretty nonrestrictive
good temporal data
5 Stages of sleep
Stage 1 NREM
Lightest
slow eye movement
body relaxes
brain wave shift
Hypnic jerks
feeling of falling
muscles not inhibited
breathing slow & heartbeat regular
BP & brain temp down
Stage 2 NREM
first deep stage
not easy to awake
slow eye move stop
sleep spindles
K complexe
20 mins
heart rate & body temp down
metabolic functions slow
first two light sleep
stage 3 & 4
deep restorative NREM sleep
delta waves
awakening rare
parasomnias
stage 5
dreaming occur
eye move
core muscles continue but others paralysed
awakening easy & leave overly sleepy
Circadian rhythms
physical, mental & behavioural changes that follows daily cycle
respond light & darkness (sleep at night & awake at day - light-related)
within body but environment influences
daylight
control molecular structure of bio clock
sleep pattern
master clock
melatonin
dreaming
REM
Activation synthesis hypothesis
mind tries to make sense (synthesis) of brain activity (activation)
no real meaning
pons & eye movement
signals
limbic system activate
occipital lobe
stimulation
activate cerebral cortex
give meaning
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Hypnosis
trance-like mental state
Increased attention, concentration & suggestibility
theories
Hilgard's Neodissociation theory
Gruzelier's Neurophysiological theory
left-sided fronto-limbic brain increase (subject pay attention to hypnotist)
reduction in left frontal activity (sub lets go of control)
right-sided temporo-posterior system increase (passive imagery)
exhaustion of frontal abilities
hypnotic state
Spano's Socio-Cognitive theory
construct of strategic role
Awareness of environmental and cognitive events
Meditation