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50 Cards in this Set
- Front
- Back
Rationalism
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Your understanding of the world must be validated; they are not correct
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Experimental Research DOES / DOES NOT allow us to draw casual conclusions
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DOES
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Hypothesis
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1) theory must be correct, 2) experiment is validated entirely, and 3) auxillary assumptions (are eliminated)
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Prediction
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Clear and consise statement of what you expect to observe
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Daniel Schacter
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Experiment: split subjects into two groups; 60% high anxiety chose to wait WITH others, 30% low anxiety chose to wait with others (between subject experiment)
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extraneous variables
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Variables other than the independent variable that changes the dependent variable: environment, subject design, and word/memory correlation
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Correlational Research
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Cannot draw casual conclusions! Level of one variable is related to another in some way
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3rd Variable Problem
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We may not know something that will happen in the experiment; prevents us from drawing a conclusion
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NEURON (three steps)
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RECEIVE input, INTEGRATE input, and TRANSMITS information
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Information processing
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receiving info, manipulating it, and sending it out
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AXON
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extension of soma, coated w/ myelin sheath
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Perfect positive coorelation
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If A increases, B increases (+1); height and weight
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Perfect negative coorelation
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If A increases, B decreases (-1); altitude and oxygen
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Neurotransmitter
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polypeptide chain; break threshold --> cell depolarizes --> neuron fires
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Monoamines
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Dopamine, Serotonin, Norepinephrine
Causes bipolar disorder |
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Endorphins
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similar to opiates
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Candice Pert
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ENDORPHINS - fell off horse and was hospitalized; wondered why morphine made her feel goof
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Blood-Brain Barrier
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Allows fat-soluble molecules to cross, but not water soluble molecules cannot
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Parkinson's disease
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body not producing enough dopamine
L-Dopa: fat soluble, crosses blood-brain barrier NOT a cure |
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Hypoglycemia
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Body cuts off glucose supply to everywhere but your brain
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Lateralization
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proves that two halves of the brain have different functions
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Corpus Callosum
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connects two hemispheres of brain
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Epilepsy
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neurons fire uncontrollably; causes recurring seizures
can TREAT by severing the CC |
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Left brain responsibilities
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Language processing/complex
Visual Auditory (Rational) |
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Right brain responsibilities
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Spatial tasks
Patterns Shape recognition (Spatial) |
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Lateralization experiment
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Image seen in left eye- they can NAME what they saw
Image seen in right eye - they CANNOT NAME idem, but can describe it |
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Saccades
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eyeball jitters to the L and R
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Phineas Gage
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steel rod went through his head, proved brain is separated into different functions
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EEG
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Electron Encephalograph
measures electrical activity of brain by placing a net of electrodes on someone's head |
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PET
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Positron emission tomography
inject head w/ sugar sugar accumulates in part of brain currently functioning area of brain lights up |
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CAT
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Computerized Axial Tomography
Pictures of thin slices of the brain are taken Full stack shows the entire brain Just a picture, DOES NOT REVEAL FUNCTION |
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MRI
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Magnetic resonance imaging
Non invasive Tells us if there is a physical problem with the brain |
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fMRI
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Functional Magnetic Resonance Imaging
captures FUNCTION and IMAGE of the brain |
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Sensation
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extracting sensory information from environment
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Perception
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refers to our making sense of the environment
Meaning we attach to sensory input Combining elementary sensory info into complex objects |
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Rationalist Argument
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All of our experience in the world is not pure sensation, it's PERCEPTION
act as if the world is exactly the way we experience it as being |
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Absolute Threshold
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intensity of the stimulus that is identified as being present 50% of the time
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JND
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Just Noticeable Difference
how much does a stimulus have to change before we notice that a difference has occured? |
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Psychophysical Scaling
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The more intense the stimulus, the more increase in stimulus required for you to detect a change
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Retina
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nerves leaving from retina carry sensory info back to brain
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Fovea
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Area where most detail can be seen; high concentration of CONES
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Rods
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Black and white
LOW light Outer part of eye 120 million of them |
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Cones
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High color
BRIGHT light about 7 million of them high visual acuity CENTER of eye |
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Additive color mixing
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Red, Green, Blue (RGB)
subtractive color mixing --> red, blue and yellow (cancel out the colors so you get the color you want) |
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Tri-Cromatic Theory
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specilized receptors for RED, GREEN, and BLUE
CONES very responsive to these |
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Opponent process theory
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red&green
yellow&blue black&white |
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Bottom up processing
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processing that's being driven by stimulus (DATA DRIVEN)
SYNTHESIS |
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Top down processing
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processing that is already stored in brain
ANALYSIS (really detailed --> symplified) |
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Pavlov
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early 1900's
dogs began to anticipate food coming; moths would salivate before food came FATHER OF CLASSICAL CONDITIONING |
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UCS
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Unconitioned stimulus
produces an unconditioned response (no training) |