conciousness Flashcards
dualism
the mind is completely seperate from the mind (descartes)
global workspace model
conciousness arises as a function when brain circuts are active
minimally concious state
People in a coma normally dont react, but here they show some conciousness like eye movement
unresponsive wakefullness syndrome
when a person appears to be out of a coma but dont respond to external stimuli for more then a month
persistent vegetative
when the coma is longer then a month and the patient is unresponsive from the enviorment
brain death
irreversable loss of brain functions
locked in syndrome
fully concious person is unable to communicate, only eye movement
attention
the ability to focus on one certain thing
filter theory (selective attention)
some stimuli demand so much attentionthat the ability to attentd to something else is switched off
change blindness
one cant pay attention to everything, therefor major changes in the enviorment are often not acknowldged
circadian rythem
biological clock that is influenced by the light and dark cycle
what are the phases of sleep
beta and aplha
Beta waves (sleep)
EEG shows short and irregular brain signals
aplha waves (sleep)
EEG shows slow and regular waves during a relaxed state
sleep stages
stage1; short bursts of irregular waves called theta waves, light sleep often people feel like fallinf or hitting a wall
stage2; breaathing more irregular, brian works to maintain sleep, EEG shows spindles (short periods where waves follow each other very quickly) combined with K complexes (wave shoots far upand then far down)
stage3 and 4; large, regular patterns called delta waves, deep sleep, mind still evaluates the enviorment for danger
stage 5; REM (rapid eye movement) Sleep, reverses every 90 min, shows beta wavesrepresenting an awake and alert mind
treatment for insomnia (falling or staying asleep)
CBT (cognitive behavioural therapy) and medication
Obstructive sleep apnoea
stops breathing briefly during sleep, unaware condition, cna cause fatigue and cardiovasvualar problems.
narcolepsy
rare condition where people become very sleepy during the day, its a genetic disorder.
restoration theory
sleep gives the body a chance to repair ir self and rest
Dreams
alertade and consiouss mind that confuses images and fantasies with reality
REM and non REM dreams
REM dreams are more intense and bizzar while non REM are often more dull
manifest content
how a person remmebered the dream
latent content
what the dream symbolises
flow (meditation)
a certain acitivity that is so pleasurable that its worth doing even if it has no specific consequence
