Unfinished Business from Monday’s Lecture€¦ · Monday’s Lecture. IV. Perspectives on...
Transcript of Unfinished Business from Monday’s Lecture€¦ · Monday’s Lecture. IV. Perspectives on...
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Unfinished Business from Monday’s Lecture
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IV. Perspectives on psychologyA. Historically: Functionalism vs
StructuralismB. NeurobiologicalC. BehavioralD. CognitiveE. PsychoanalyticF. Phenomenological
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IV. Perspectives on psychologyA. Historically
A. Structuralism1. Edward Titchener2. Stressed Observation3. But Introspection as privileged method4. Determine basic/fundamental components
(structures) of the mindB. Functionalism
1. William James2. Also used Introspection, but not to break
down mind to components3. Examined purpose/function of consciousness
and behavior
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William James (1842 – 1910)
“Action may not always bring happiness, but there is no happiness without action.”
“The greatest discovery of any generation is that a human can alter his life by altering his attitude.”
“A great many people think they are thinking when they are merely rearranging their prejudices.”
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IV. Perspectives on psychologyA. Historically: Functionalism vs
StructuralismB. Neurobiological
Brain-behaviorGenetic influences
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IV. Perspectives on psychologyA. Historically: Functionalism vs
StructuralismB. NeurobiologicalC. Behavioral
(Watson, Skinner)
Environmental determinantsBlack Box
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IV. Perspectives on psychologyA. Historically: Functionalism vs
StructuralismB. NeurobiologicalC. BehavioralD. CognitiveMeasure things inside the black box:
Perception, memory, information processing
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Stimulus Processing Still moreProcessing
Response
Stimulus Processing Response
Stimulus Response
Behavioral:
Cognitive
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IV. Perspectives on psychologyA. Historically: Functionalism vs
StructuralismB. NeurobiologicalC. BehavioralD. CognitiveE. Psychoanalytic
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Note – contemporary version termed psychodynamic
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IV. Perspectives on psychologyA. Historically: Functionalism vs
StructuralismB. NeurobiologicalC. BehavioralD. CognitiveE. PsychoanalyticF. Phenomenological
REMEMBER:Behavior is
MultiplyDetermined
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Figure 1 Biopsychosocial approachMyers: Psychology, Ninth EditionCopyright © 2010 by Worth Publishers
Bio-psycho-social perspective
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Research Methods
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A Scientific Approach to Understanding Human Behavior
Michael Shermer, Publisher, Skeptic magazine
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Scientific Skepticism
As scientists, we should evaluate all claims with an open mindinsist on persuasive evidence before accepting
these claims
And we should avoid Cynicism (Pathological skepticism) The tendency to dismiss any claims that contradict
one’s beliefs
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I. Research methods
A. Experimental method1. Independent variable (IV) is manipulated by
Experimenter2. Dependent (DV) variable is measured3. Except for IV, all other conditions kept
constant4. Confounds5. Blinding6. Example
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ExperimentationIndependent Variable the experimental factor that is manipulatedthe variable whose effect is being studied
Dependent Variable the experimental factor that may change in
response to manipulations of the independent variable in psychology it is usually a behavior or mental
process
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I. Research methods
A. Experimental method1. Independent variable (IV) is manipulated by
Experimenter2. Dependent (DV) variable is measured3. Except for IV, all other conditions kept
constant4. Confounds5. Blinding6. Example
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Keeping conditions Constant
Random AssignmentControl of confounds
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I. Research methods
A. Experimental method1. Independent variable (IV) is manipulated by
Experimenter2. Dependent (DV) variable is measured3. Except for IV, all other conditions kept
constant4. Confounds5. Blinding6. Example
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Blinding
Important when expectations can influence outcome
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Acupuncture to treat DepressionPossible DesignsCompare ACU to no treatment?Sham Points versus real points?Need to double-blind
Our Design:Participants were randomly assigned tospecific: treat specific symptoms of depressionnonspecific: pattern not specific to depressionwaitlist: waited before receiving specific
Treatments were developed by an assessing acupuncturist, administered by one of several other acupuncturists
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Acupuncture to treat DepressionSynopsisDV: Blind Interview Ratings of Depression Severity
After TreatmentIV: Treatment delivered (or not delivered in the case
of Waitlist)Confounds measuredAcupuncturist beliefsClient beliefs Neither differed between specific and nonspecific
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Acupuncture to treat DepressionResults
Allen, Schnyer, & Hitt, 1998, Psychological Science
Week
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Name that Variable!Professor Fisbee gives one group of students
Starbucks fully caffeinated, and the other Decaf.
Students do not know which type they receive.
He then measures how well they score on a test of psychological reasoning.
Before assigning students to groups, he matches them on grade point average so that the two groups have equivalent GPA.