CLPS 0010 Readings - Chapter 5 Flashcards
(39 cards)
What is consciousness?
One’s subjective experience of the world, resulting from brain activity
Do most scientists agree or disagree with dualism?
Disagree: believe mind and brain are inseparable
What are the three absolutely vital functions of consciousness?
To perform complex actions that require input from different brain regions; to connect with one another by sharing thoughts and feelings; for complicated thinking
What is a persistent vegetative state?
When someone is in a coma but with sleep and wake cycles for longer than a month
What is a minimally conscious state?
The state between vegetative and fully conscious: some deliberate movements or communication; better prognosis
What is the global workspace model?
That consciousness arises as a function of which brain circuits are active
What is split brain?
A condition in which the corpus callosum is surgically cut and the two hemispheres of the brain don’t receive info directly from each other
Which hemisphere is language dominant?
Left hemisphere
Which hemisphere is spatial dominant?
Right hemisphere
What does the term interpreter mean?
Refers to left hemisphere; refers to its attempts to make sense of actions and ongoing events
Which hemisphere tends to look for patterns?
Left hemisphere, the interpreter
When is unconscious thought most beneficial, for complex or simple decisions?
Better for complex decisions in which it’s difficult to weight pros and cons consciously
What is the suprachiasmatic nucleus?
The small region of the hypothalamus that receives information about light signals for maintaining circadian rhythms
How does light affect the pineal gland and circadian rhythms?
Less light, detected by the eyes and sent to the suprachiasmatic nucleus in the hypothalamus, triggers the pineal gland to secret more melatonin, which is a hormone that controls circadian rhythms
What is the brain pattern for sleep/drowsiness?
Alpha waves, which are slower and more regular that beta waves
What is Stage 1 of sleep?
Theta waves
What is Stage 2 of sleep?
Sleep spindles and K complexes
What are Stages 3 and 4 of sleep?
Delta waves
What is REM?
Rapid eye movement stage of sleep, back to beta waves
What brain areas are more active during REM sleep?
In occipital cortex and brainstem
What happens to most of the body’s muscles during REM sleep?
Paralyzed, except for genital arousal (wtf?)
What is obstructive sleep apnea?
A disorder in which a person, while asleep, stops breathing because his or her throat closes: frequent awakenings during the night
What is pseudoinsomnia?
When you dream that you’re not sleeping
What is REM behavior disorder?
There is no normal paralysis accompanying REM sleep, so sleepers flail; caused by a neurological deficit; most common in elderly males