How do you study the effects of brain damage to the hippocampus?

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How do you study the effects of brain damage to
the hippocampus?
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Or genius?
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S-S research is not a case study approach

• Rigorously controlled
• Systematic effort to determine cause
• Efforts to rule out rival hypothesis
• Efforts to assess external validity
• Emphasis on quantitative measures rather than
  subjective assessment

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Hermann Ebbinghaus
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Validity of Nonsense syllable learning?
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You should know who this is.
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Why did Skinner advocate study of the individual?
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Cumulative recorder
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Argued that study of the individual is the only
meaningful way to study behavior.
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You can take any idea a bit too far cant you.
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Basic Reversal Designs ABA dont confuse with
ABBA within group designs

• Baseline
• Intervention
• reversal

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Basic reversal design
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Reversal Designs cont

• Therapeutic end-points?
• ABAB designs

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Basic reversal design
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Reversal designs

• Intra subject replication-causality
• Inter subject replication external validity

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Issues for Reversal designs

• Baseline stability
• Criteria for change
• Criteria for reversal
• partial reversal?

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What if you cant reverse?
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Baseline drift
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Small-n designs in brain studies
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Cumulative records of neural activity
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What about situations where you would not want to
reverse an effective treatment?

• MBDs

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Consider the classroom environment
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Contingency analysis
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Consider your home environment
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Consider the scientific environment
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Small-n designs in behavior studies
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