Lecture 10-Personal Identity - Identity Derek Parfit...

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IdentityDerek Parfit – “Personal Identity”Daniel Dennett – “The Self as a Center of Narrative Gravity”1
Agenda1.Personal Identity Over TimeNumerical Identity vs. Qualitative IdentityPhysical Criterion vs. Psychological CriterionDivisionDoes Personal Identity Matter?2.What is the Self?Center of GravityFictional CharactersSplit-Brain Subjects2
Questions1.What is the nature of a person?2.What is it that makes a person at twodifferent times one and the sameperson?3.What is necessarily involved in thecontinued existence of each personover time? (560)https://j43
Numerical Identity versusQualitative IdentityNumerical Identity:X and Y arenumerically identical if and only if they areone and the same thing.Qualitative Identity:X and Y arequalitatively identical if and only if they areexactly similar.4
Two Main Answers1.Physical ViewsYou are numerically identical to some future or past being when that beinghas the same body, or is the same biological organism, as you.2.Psychological ViewsYou are numerically identical to some future or past being when there is somekind of psychological relation between you and that being—e.g. both of youshare certain memories, beliefs, desires, intentions, etc.5
Physical Criterion of PersonalIdentityDo you need the same body and brain in order to be the sameperson over time?

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Term
Spring
Professor
Karanja
Tags
Psychology, Derek Parfit, Personal Identity Matter

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