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50 Cards in this Set

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